Rules
What is a Troitsky line in chess?
- Rules
- Legality
- Result
Troitsky line is a rules concept: also Troitzky line. Endgame analysis by Alexey Troitsky of two knights versus a pawn found certain pawn positions that result in win, draw or loss. The resulting pawn positions on each file form what is known as the Troitsky line or Troitsky position. In a game, verify the exact rule before making assumptions, because one detail can change the result.
What to look for on the board
- Whether the move is legal.
- Whether the rule changes the result.
- Whether a special case applies.
Troitsky line FAQ
What is a troitsky line in chess?
Troitsky line is a rules concept: also Troitzky line. Endgame analysis by Alexey Troitsky of two knights versus a pawn found certain pawn positions that result in win, draw or loss. The resulting pawn positions on each file form what is known as the Troitsky line or Troitsky position. In a game, verify the exact rule before making assumptions, because one detail can change the result.
How do you spot a troitsky line on the board?
Look for: Whether the move is legal.; Whether the rule changes the result.; Whether a special case applies..
What is the most common mistake with a troitsky line?
Assuming a rule from casual play instead of checking the exact tournament rule.
How do you get better at using a troitsky line?
Rules matter most in edge cases. If the result changes, slow down and verify the exact condition.
Train this pattern on your own games
Reading a definition is not the same as spotting the pattern with a clock running. Chessiro's free game review runs Stockfish 18 over every move you play, names the concept behind each mistake, and turns the positions where it cost you into training puzzles. You can also see the idea in action in the classic games collection, where the greatest players in history demonstrate it.
Related terms
Free game review
See where troitsky line decides your games
Chessiro reviews your games with an AI coach that names the concept behind every mistake, then drills you on the exact positions where it happened until you stop repeating them.
