Escort the pawn: king as far as possible, pawn as late as possible

From Chess Fundamentals by José Raúl Capablanca (1921), Chapter 1 — First Principles, Example 6 (Pawn Promotion) · Beginner · about 4 minutes.

The winning half of king-and-pawn against king. White's king stands IN FRONT of its pawn with a square to spare, and that changes everything. Capablanca's rule for converting it: advance the king as far as is compatible with the pawn's safety, and never advance the pawn until its own safety requires it. The pawn is the slowest piece on the board — every tempo it spends is a tempo the king could have used to take space.

Starting position (FEN): 8/8/5k2/8/5K2/8/4P3/8 w - - 0 1

The line

• 1. Ke4 — King first. The pawn stays home as long as it's safe there.
• 1... Ke6 — Black blocks the king's path forward...
• 2. e3 — ...so ONLY now does the pawn spend a move — to force Black to give way. This is the one reason to push: necessity, never habit.
• 2... Kf6
• 3. Kd5 — And immediately the king uses the space Black conceded.
• 3... Ke7
• 4. Ke5 — Again no push. The pawn is perfectly safe on e3; the king keeps grabbing squares.
• 4... Kd7
• 5. Kf6 — The king is now two ranks ahead of its pawn and owns the road to e8. Time to bring the pawn up under escort.
• 5... Ke8
• 6. e4 — The pawn travels through territory the king already controls — it can never be touched.
• 6... Kd7
• 7. e5
• 7... Ke8
• 8. Ke6 — The critical moment, and the link to the previous lesson: pushing e6 here would hand Black the drawn pattern (king in front of pawn). Instead the king takes e6 himself — the opposition.
• 8... Kf8
• 9. Kd7 — The king owns e8. The pawn now simply walks: e6, e7, e8=Q — every square protected. Game over.

Takeaway

King in front of the pawn wins; king behind it only draws. Convert by moving the king as far forward as safety allows and pushing the pawn only when you must — and at the finish, take the last squares with the KING, never with the pawn.

Play this lesson move by move on the interactive board at https://www.brilliantknight.com/lessons/chess-fundamentals-first-principles/escort-the-pawn-king-first · All lessons