Skip to main content
メインコンテンツへ

Endgame Strategy: When to Green and How to Win

Master Dominion's endgame: when to go green, province timing, three-pile threat recognition, and last-turn calculation

Advanced Read time: 18 min

Introduction: The Endgame Decides Everything

Dominion's deck-building phase gets most of the attention, but it is endgame decision-making that most directly determines who wins. No matter how elegant an engine you've built, a single misread of the going-green window can hand victory to your opponent. This is the thrill — and the cruelty — of Dominion.

This guide analyzes the endgame at the depth appropriate for advanced players. We back intuitive judgments with mathematical grounding, so you can apply endgame principles to any kingdom supply.


1. Reading Endgame Game Speed

Always Know the Game-End Triggers

Dominion ends under either of two conditions:

  1. The Province pile empties (8 cards in 2-player; 12 in 3-4-player)
  2. Any three supply piles simultaneously empty (Three-Pile Ending)

Keeping both in mind at all times is the starting point for endgame play. Ask yourself every turn: "How many turns remain before the game ends?"

When to Go Green: Three Key Indicators

Indicator 1: Money Density

Money Density = Total coin production in deck ÷ Total deck size

Strategy Density Target to Start Greening
Big Money 1.60+
Light Engine 1.40-1.60
Heavy Engine 1.20-1.40
Combo Engine Can buy 2+ Provinces per turn

Indicator 2: Province Consumption Rate

Calculate how fast Provinces are disappearing:

Turns remaining ≈ Provinces left ÷ (Your buy rate + Opponent's buy rate)

If your opponent has bought 3 Provinces in 5 turns (rate = 0.6/turn) and 5 Provinces remain, the opponent alone will drain them in roughly 8 more turns. Work backwards to determine your deadline.

Indicator 3: Deck Cycle Speed

A 10-card deck cycles every 2 turns; a 20-card deck every 4 turns. Thinner decks deliver key cards more often. Heavily trashed decks reach the going-green density threshold faster.

Reading Your Opponent's Deck

Glancing at your opponent's discard pile at end of turn gives a rough deck size estimate.

Opponent's Deck Size Interpretation Your Response
10-15 (thin) Trashed. Stable Province purchases ahead Start greening now
16-25 (standard) Mid-game pace; may accelerate soon Check your own density
26+ (thick) Still in early mode; may be behind Consider Three-Pile timing

2. Province vs. Duchy: The Purchase Decision

Basic Point Efficiency Comparison

Card Cost VP VP per Coin
Province 8 6 0.75
Duchy 5 3 0.60
Estate 2 1 0.50

Province wins on raw cost efficiency. But when you cannot reliably produce 8 coins per turn, Duchy becomes the practical optimal choice.

Three Situations Where Duchy Is Best

Situation 1: Your hand averages only 5-7 coins

Concrete comparison over 10 turns with an average hand of 6 coins:

Approach Expected Purchases Expected VP
Province-only (buy only when you hit $8) ~4-5 purchases 24-30 VP
Duchy-guaranteed (buy at $5+) ~9-10 purchases 27-30 VP

The Duchy route achieves comparable total VP when Province is not consistently reachable.

Situation 2: 3-4 or fewer Provinces remain

In the final few turns, buying Duchy while draining other piles can trigger a Three-Pile ending on your terms.

Situation 3: You're trailing and need to close a gap

Duchy purchases combined with Three-Pile pile-driving can create a comeback path that pure Province racing cannot.

Concrete Score Gap Calculation

Scenario: 4 Provinces remain, Opponent 15 VP - You 9 VP (down 6)

Province Split Your Added VP Opponent's Added VP Final Gap
2-2 (even) +12 +12 Still down 6
3-1 (you win race) +18 +6 Up 6 (reversal)

To close a 6-point gap with Duchy: buying 2 more Duchies than your opponent = +6 VP net → tie. Determine which outcome is achievable given remaining turns.


3. Three-Pile Strategy (Pile-Out)

Three-Pile Mechanism

When any three supply piles are simultaneously empty, the game ends after the current turn completes.

Key rules:

  • The Province pile counts as one of the three
  • The Curse pile, Estate pile, Copper pile all count
  • Basic Treasure piles (Copper, Silver, Gold) are supply piles

Which Piles to Target

Pile Cost Starting Size Why Target
Curse 0 10 (4-player) Zero-cost; buy as many as desired
Estate 2 8 (4-player) Cheap; you may want them anyway late-game
Gardens 4 10 Scores VP while draining
Low-cost Kingdom piles 2-4 10 Easy to buy multiples per turn

Effective pile combinations:

  1. Curse + Estate + Gardens: All cheap; Curse pile drains quickly since opponents rarely want it
  2. Duchy + Gardens + another action: Scores VP while racing two piles simultaneously
  3. Province + two cheap piles: Rush after taking 1-2 Provinces when leading

When to Trigger Three-Pile

Trigger when:

  • You lead on score and want to freeze that advantage
  • You cannot win the Province race but can win on total VP with an early end

Avoid when:

  • You lead by a large margin (taking Provinces conservatively is safer)
  • Your opponent is also racing three-pile and may take the initiative

Three-Pile Comeback Example

Scenario:

  • Provinces remaining: 5
  • Score: Opponent 18 - You 10 (down 8)
  • Your deck: averages 5 coins/turn; cannot buy Province; can reliably buy Duchy
  • Remaining supply: Gardens x8, Militia x7, Estate x5

Turn plan:

  1. Buy all 5 Estates → Estate pile goes from 5 to 0
  2. Buy multiple Gardens → drain Gardens pile while accumulating VP
  3. Drain a third pile (Militia or other cheap card)

Expected final score:

  • You: 10 + 5 Estates (5 VP) + 4-5 Gardens (deck-size VP) ≈ 25-35 VP
  • Opponent: 18 VP (game ends before their engine completes)

4. Last-Turn Calculation

How Many Turns Until Victory?

Turns you need ≈ Provinces you still need ÷ Your Province-per-turn rate

Then subtract opponent purchases:

Turns until game ends ≈ Provinces left ÷ (Your rate + Opponent's rate)

Example: 4 Provinces left, both players buying 1 per turn: → 4 ÷ 2 = 2 turns until the game ends → you can take at most 2 more Provinces.

Game-End Condition Priority

Provinces remaining ≤ 2  →  Province pile-out is close; evaluate PPR
Provinces remaining ≥ 3 AND two other piles at 1-2 cards  →  Three-Pile may come first
Neither is close  →  Continue standard greening pace

Buying Multiple Provinces in One Turn

Engine and draw-heavy decks can purchase 2-3 Provinces in a single turn (Province cluster). Requirements:

  • Extra +Buy from Market, Bridge, or similar cards
  • 8×N coins (N = Provinces to buy)
  • Game is near its end

Multi-Province purchase table:

+Buys Available Coins Available Max Provinces Leftover for Duchy
+1 (2 total) 16 2 0
+1 (2 total) 21 2 1 Duchy
+2 (3 total) 24 3 0
+2 (3 total) 29 3 1 Duchy

Executing this calculation in under a minute during play separates advanced players from intermediate ones.

Final Turn Optimal Purchase Example

Board state:

  • 1 Province remaining
  • 3 Duchies remaining
  • You: 22 VP, Opponent: 24 VP (down 2)
  • This turn: 11 coins, 2 buys
Buy 1 Buy 2 Your Final VP Outcome
Duchy (+3) Duchy (+3) 28 VP Win (28 > 24)
Province (+6) Cannot afford Duchy (need 5 more coins) 28 VP Depends on opponent's next turn

Optimal line: 2 Duchies for 10 coins → 28 VP → Reversal win.


5. Coming Back From Behind

PPR (Penultimate Province Rule)

"When only 2 Provinces remain and you trail on score, do NOT take a Province — take a Duchy instead."

Why it works (2 Provinces left, Opponent 12 - You 9):

Standard move (take 7th Province):

  1. You: 9+6 = 15 VP
  2. Opponent takes last Province: 12+6 = 18 VP
  3. Result: 18 vs. 15 → You lose

PPR move (take Duchy):

  1. You: 9+3 = 12 VP
  2. Opponent takes 7th Province: 12+6 = 18 VP
  3. You take 8th Province: 12+6 = 18 VP
  4. Result: 18 vs. 18 → Draw

PPR converts a loss into a draw. In a situation where a draw is the best achievable outcome, PPR is the correct play.

PPR exceptions:

Situation Correct Play
You lead on score Take the 7th Province; let opponent end the game
4-2 Province split; you're down 4-2 Ignore PPR; take both remaining Provinces
Three-Pile ending is imminent Take the Province; PPR assumption breaks down
Opponent's deck outpaces yours over time Fight for the win now; a draw may be better than an eventual loss

Gardens Strategy

Gardens (cost 4) score 1 VP per 10 cards in your deck.

Deck Size 1 Gardens 3 Gardens 4 Gardens
20 cards 2 VP 6 VP 8 VP
30 cards 3 VP 9 VP 12 VP
40 cards 4 VP 12 VP 16 VP

A bloated 30-card deck with 3-4 Gardens provides the equivalent of 2-3 Provinces worth of VP. Gardens enable cheap-pile accumulation strategies that simultaneously drain piles and score.

When Gardens is strongest:

  • No trashing available in the kingdom (decks will bloat naturally)
  • Opponent cannot pivot to Gardens without derailing their own strategy
  • You combine Gardens with an Estate/Curse/other cheap-pile drain for Three-Pile

Duke Strategy

Duke (cost 5) scores 1 VP per Duchy you own. Combined with Duchies, the point efficiency becomes extraordinary.

Duke + Duchy scoring:

Dukes Duchies VP from Dukes VP from Duchies Total
1 3 3 VP 9 VP 12 VP
2 4 8 VP 12 VP 20 VP
3 5 15 VP 15 VP 30 VP

Three Dukes + five Duchies = 30 VP — equal to five Provinces but achieved at lower average cost per point. Duke/Duchy is a viable alternative victory path when Province competition is crowded.

Disrupting Opponents to Buy Time

When trailing, slowing the opponent extends the number of turns you have to catch up.

Card Effect Strategic Use
Militia Opponent discards to 3 cards Cuts Province-buying turns
Witch Opponent gains a Curse Dilutes their money density
Bandit Trashes opponent's Gold/Silver Weakens their coin production
Torturer Curse or discard Combined disruption to break their pace

Attack cards in the endgame are about buying yourself more cycles — more turns for your own deck to generate the VP you need. Always balance disruption against your own buying opportunities.


6. 2-Player vs. Multiplayer Differences

Game End Speed

Players Provinces Buyers per Turn Typical Game Length
2 8 2 20-30 turns
3 12 3 20-30 turns
4 12 4 18-25 turns

In 4-player, each player can expect only ~3 Provinces on average. Over-investing in deck-building leads to being lapped by faster opponents.

Pile Depletion in Multiplayer

Pile depletion rate ≈ Number of players wanting a card × Their purchase frequency

In 4-player, a desirable 10-card pile can drain in 2-3 turns when multiple players target it. Identify early which piles are contested and secure your needed quantity before they disappear.

PPR in Multiplayer

In 4-player, determining who takes the "last Province" is harder because three other players can take it. Practical heuristics:

Your Standing Recommended Play
3rd or 4th (near bottom) Apply PPR; take Duchy instead of 7th Province
1st or 2nd (leading) Take 7th Province; accelerate game end
Everyone roughly tied Calculate whether +3 VP from Duchy beats the expected outcome of Province racing

Controlling the Game in Multiplayer

Pile management becomes a weapon:

  • When leading: Aggressively drain cheap piles to trigger Three-Pile before opponents catch up
  • When trailing: Target piles that slow down the leader (e.g., buy Curses that go into their deck if Witch is in play)

The fundamental principle applies regardless of player count: track all scores and pile counts, then act on the calculation rather than intuition.


7. Advanced: The Full Endgame Thought Process

Final-Three-Turns Checklist

Every turn in the final stretch, confirm:

  • How many Provinces remain? How many turns until Province pile-out?
  • Which piles are nearly empty? Is Three-Pile imminent?
  • What is the current score gap? How many VP do I need to lead/tie?
  • What is my expected coin output this turn? Can I buy Province? Duchy? Both?

Purchase priority hierarchy:

  1. Can I end the game this turn? → Execute that line immediately
  2. Is the opponent about to end the game? → Maximize VP in remaining turn(s)
  3. Normal endgame → Apply PPR, score gap math, and Three-Pile timing together

Summary

Endgame victory in Dominion is not about luck — it is the product of calculation and judgment accumulated over every decision.

Endgame Master Checklist:

  • Money density at greening threshold (1.6+) or engine capable of Province clusters
  • Province count and opponent's buy rate tracked at all times
  • PPR application judgment ready when 2 Provinces remain
  • Three-Pile as comeback or lead-locking tool evaluated every turn
  • All players' scores and pile states tracked in multiplayer
  • "How many VP do I need?" and "How many VP can I get this turn?" calculated before every purchase

Endgame judgment is as important as — arguably more important than — deck-building skill. Apply the frameworks in this guide repeatedly in live play until the calculations become instinct.