MESON Chess Problem Database
Problem Display
PID: 23215 (6R1/k1p5/rpPP4/8/8/3K4/1B6/QR6 w - - 0 1)
Lincoln, Robert A
Fun with Chess Miniatures, 1996
#2
7 + 4
SOLUTION
- SOUND
- Sets
- 1...Rxa1
- 2.Rxa1#
- 1...Ra2
- 2.Qxa2#
- 1...Ra3+
- 2.Qxa3#
- 1...Ra4
- 2.Qxa4#
- 1...b5
- 2.Bd4#
- 1...Rxa1
- Tries
- 1.Bc1?
- 1...Ra3+
- 2.Qxa3#
- 1...Rxa1
- 2.Rxa1#
- 1...cxd6
- 2.Qg7#
- 1...Ra2
- 2.Qxa2#
- 1...Ra4
- 2.Qxa4#
- 1...b5
- 2.Be3#
- 1...Ra5!
- 1...Ra3+
- 1.Bh8?
- 1...Ra3+
- 2.Qxa3#
- 1...Rxa1
- 2.Rxa1#
- 1...cxd6
- 2.Qg7#
- 1...Ra2
- 2.Qxa2#
- 1...Ra4
- 2.Qxa4#
- 1...b5
- 2.Bd4#
- 1...Ra5!
- 1...Ra3+
- 1.Re1?
- 1...Ra3+
- 2.Qxa3#
- 1...Rxa1
- 2.Rxa1#
- 1...cxd6
- 2.Re7#
- 1...Ra2
- 2.Qxa2#
- 1...Ra4
- 2.Qxa4#
- 1...b5
- 2.Bd4#
- 1...Ra5!
- 1...Ra3+
- 1.Rf1?
- 1...Ra3+
- 2.Qxa3#
- 1...Rxa1
- 2.Rxa1#
- 1...cxd6
- 2.Rf7#
- 1...Ra2
- 2.Qxa2#
- 1...Ra4
- 2.Qxa4#
- 1...b5
- 2.Bd4#
- 1...Ra5!
- 1...Ra3+
- 1.Rbg1?
- 1...Ra3+
- 2.Qxa3#
- 1...Rxa1
- 2.Rxa1#
- 1...cxd6
- 2.R1g7#
- 1...Ra2
- 2.Qxa2#
- 1...Ra4
- 2.Qxa4#
- 1...b5
- 2.Bd4#
- 1...Ra5!
- 1...Ra3+
- 1.Rh1?
- 1...Ra3+
- 2.Qxa3#
- 1...Rxa1
- 2.Rxa1#
- 1...cxd6
- 2.Rh7#
- 1...Ra2
- 2.Qxa2#
- 1...Ra4
- 2.Qxa4#
- 1...b5
- 2.Bd4#
- 1...Ra5!
- 1...Ra3+
- 1.dxc7?
- 1...Ra3+
- 2.Qxa3#
- 1...Rxa1
- 2.Rxa1#
- 1...Ra2
- 2.Qxa2#
- 1...Ra4
- 2.Qxa4#
- 1...b5
- 2.Bd4#
- 1...Ra5!
- 1...Ra3+
- 1.d7?
- 1...Ra3+
- 2.Qxa3#
- 1...Rxa1
- 2.Rxa1#
- 1...Ra2
- 2.Qxa2#
- 1...Ra4
- 2.Qxa4#
- 1...b5
- 2.Bd4#
- 1...Ra5!
- 1...Ra3+
- 1.Bc1?
- Keys
- 1.Bd4!
- 1...Ra3+
- 2.Qxa3#
- 1...Rxa1
- 2.Rxa1#
- 1...cxd6
- 2.Bxb6#
- 1...Ra2
- 2.Qxa2#
- 1...Ra4
- 2.Qxa4#
- 1...Ra5
- 2.Qxa5#
- 1...Ra3+
- 1.Bd4!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 1
- Sets
- R(a);N_SPINR(a),OGATE,XQ(A)::R(B),XR(a)
- R(a);OGATEB::QAR(A),XR(a)
- R(a);CHECK,OGATEB::QAR(A),XR(a)
- P(b);OGATEB::B(C)
- Tries
- Try
- B(C);
- Vars
- R(a);CHECK,OGATEB::QAR(A),XR(a)
- R(a);N_SPINR(a),OGATE,XQ(A)::R(B),XR(a)
- P(d);OGATEB,XP(F)::QAR(A)
- R(a);OGATEB::QAR(A),XR(a)
- P(b);OGATEB::B(C)
- Refutation
- R(a);
- Try
- B(C);
- Vars
- R(a);CHECK,OGATEB::QAR(A),XR(a)
- R(a);N_SPINR(a),OGATE,XQ(A)::R(B),XR(a)
- P(d);OGATEB,XP(F)::QAR(A)
- R(a);OGATEB::QAR(A),XR(a)
- P(b);OGATEB::B(C)
- Refutation
- R(a);
- Try
- R(B);
- Vars
- R(a);CHECK,OGATEB::QAR(A),XR(a)
- R(a);N_SPINR(a),OGATE,XQ(A)::R(B),XR(a)
- P(d);OGATEB,XP(F)::R(B)
- R(a);OGATEB::QAR(A),XR(a)
- P(b);OGATEB::B(C)
- Refutation
- R(a);
- Try
- R(B);
- Vars
- R(a);CHECK,OGATEB::QAR(A),XR(a)
- R(a);N_SPINR(a),OGATE,XQ(A)::R(B),XR(a)
- P(d);OGATEB,XP(F)::R(B)
- R(a);OGATEB::QAR(A),XR(a)
- P(b);OGATEB::B(C)
- Refutation
- R(a);
- Try
- R(B);
- Vars
- R(a);CHECK,OGATEB::QAR(A),XR(a)
- R(a);N_SPINR(a),OGATE,XQ(A)::R(B),XR(a)
- P(d);OGATEB,XP(F)::R(B)
- R(a);OGATEB::QAR(A),XR(a)
- P(b);OGATEB::B(C)
- Refutation
- R(a);
- Try
- R(B);
- Vars
- R(a);CHECK,OGATEB::QAR(A),XR(a)
- R(a);N_SPINR(a),OGATE,XQ(A)::R(B),XR(a)
- P(d);OGATEB,XP(F)::R(B)
- R(a);OGATEB::QAR(A),XR(a)
- P(b);OGATEB::B(C)
- Refutation
- R(a);
- Try
- P(F);XP(d)
- Vars
- R(a);CHECK,OGATEB::QAR(A),XR(a)
- R(a);N_SPINR(a),OGATE,XQ(A)::R(B),XR(a)
- R(a);OGATEB::QAR(A),XR(a)
- P(b);OGATEB::B(C)
- Refutation
- R(a);
- Try
- P(F);
- Vars
- R(a);CHECK,OGATEB::QAR(A),XR(a)
- R(a);N_SPINR(a),OGATE,XQ(A)::R(B),XR(a)
- R(a);OGATEB::QAR(A),XR(a)
- P(b);OGATEB::B(C)
- Refutation
- R(a);
- Try
- Actual
- B(C);P_PINP(b)
- Vars
- R(a);CHECK,OGATEB::QAR(A),XR(a)
- R(a);N_SPINR(a),OGATE,XQ(A)::R(B),XR(a)
- P(d);N_GUARD,XP(F)::B(C),XP(b)
- R(a);OGATEB::QAR(A),XR(a)
- R(a);OGATEB::QAR2(A),XR(a)
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