4

There are are four types of pins.

  1. Absolute Pin-A piece is pinned to the king and cannot move due to the resulting illegal check.
  2. Partial Pin-A piece is pinned to the king and can move along pinning line but nowhere to else due to the resulting illegal check.
  3. Relative Pin-A piece is not pinned to king and can move but doing so would lose the exchange.
  4. Situational Pin-A pinned piece can move butdoing so is dettered by a loss of material or mate.

I am looking for a combination played in a real game that demonstrates all four kinds of pins, preferably in a row in any combination of the four pins.

The best I can find is a mate in two combination with two absolute pins in a row.

[FEN "rnbq1r2/pp2kpQp/3p4/1B6/3Np3/B1b5/P1P2PPP/1R1K3R w - - 0 1"]

1. Qe5+ Be6 2. Nf5#
1

I do not know of a game that shows all four in a combination. However, here is a chess problem that I made to demonstrate all 4 types of pins in a "combination-esque" sequence.

[Title "me, chess.stackexchange.com 8/19/2020, Mate In 4"]
[FEN "1K6/NP3p2/8/p5Pb/kr1RRPPp/3P2Nq/1Pp3PQ/2nB2B1 w - - 0 1"]

1. Bxc2+ Nb3 {An absolute pin is instated to limit Black's move choices and to lock up the Black king} 2. Qxh3 hxg3 {After White moves, Black's pawn is in a relative pin. This is because moving it exposes the higher-valued bishop to capture. If Black's bishop moves, White can still mates in two} (2... Bxg4 3. Ne2 null 4. Nc3#) 3. Qxh5 {Now Black's two moveable pieces are pinned. The pawn is in a situational pin because moving it results in a mate, and the rook is in a partial pin because it can only move along the pin line, although it is also in a situational pin.} f5 (3... Rc4 4. Rxc4#) 4. Qe8#

Addendum 12/17/2020-Here is a shorter, less complicated version of the above problem, being one move shorter, fewer units used, and much cleaner play.

[Title "me, chess.stackexchange.com 12/17/2020, Mate In 3"]
[FEN "8/N4p2/8/p1P2PPr/kr1R2pp/1r1P2NQ/1PR1P1P1/3BK3 w - - 0 1"]

1. Rcc4! {This instates an absolute pin on Black's b3 rook, and a partial pin on their b4 rook.} hxg3 (1... gxh3 2. Ne4 null 3. Nc3#) {Black's h4 pawn was in a relative pin. If it doesn't move, White mates with the knight, and if it does, Black loses the higher valued rook. } 2. Qxh5 {Now Black's pawn is in a situational pin, as moving it will result in mate. Black's rook is also in the same predicament.} f6 (2... Rxc4 3. Rxc4#) 3. Qe8# 

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.