MESON Chess Problem Database
Problem Display
PID: 282775 (8/2p5/2pp4/2Bk1p2/8/bK2R1Q1/B7/8 w - - 0 1)
Knight, JT
Bolton Football Field, 1893
(First published on Sat Oct 28 1893)
#2
5 + 6
| 15239 | Valois Notebooks | 2025 |
SOLUTION
- SOUND
- Sets
- 1...Bc1
- 2.Kb4#
- 1...Bb2
- 2.Kb4#
- 1...Bb4
- 2.Kxb4#
- 1...Bxc5
- 2.Kc3#
- 1...f4
- 2.Qg5#
- 1...dxc5
- 2.Qe5#
- 1...Bc1
- Tries
- 1.Ba7?
- threat
- 2.Kc2#
- 2.Kxa3#
- 2.Kc3#
- 2.Ka4#
- 2.Qg2#
- 2.Qf3#
- 2.Qg8#
- 1...Bc5
- 2.Kc3#
- 1...Bc1
- 2.Kc2#
- 2.Kc3#
- 2.Ka4#
- 2.Kb4#
- 2.Qg2#
- 2.Qf3#
- 2.Qg8#
- 1...Bb2
- 2.Kxb2#
- 2.Kc2#
- 2.Ka4#
- 2.Kb4#
- 2.Qg2#
- 2.Qf3#
- 2.Qg8#
- 1...Bb4
- 2.Kb2#
- 2.Kc2#
- 2.Ka4#
- 2.Kxb4#
- 2.Qg2#
- 2.Qf3#
- 2.Qg8#
- 1...f4
- 2.Kc2#
- 2.Kxa3#
- 2.Kc3#
- 2.Ka4#
- 2.Qf3#
- 2.Qg5#
- 2.Qg8#
- 1...c5!
- threat
- 1.Re1?
- 1...Bxc5
- 2.Kc3#
- 1...dxc5
- 2.Qe5#
- 2.Qd3#
- 1...Bc1
- 2.Kb4#
- 1...Bb2
- 2.Kb4#
- 1...Bb4
- 2.Kxb4#
- 1...f4
- 2.Qg5#
- 1...Kxc5!
- 1...Bxc5
- 1.Re2?
- 1...Bxc5
- 2.Kc3#
- 1...dxc5
- 2.Qe5#
- 2.Qd3#
- 1...Bc1
- 2.Kb4#
- 1...Bb2
- 2.Kb4#
- 1...Bb4
- 2.Kxb4#
- 1...f4
- 2.Qg5#
- 1...Kxc5!
- 1...Bxc5
- 1.Re7?
- 1...Bxc5
- 2.Kc3#
- 1...dxc5
- 2.Qe5#
- 2.Qd3#
- 1...Bc1
- 2.Kb4#
- 1...Bb2
- 2.Kb4#
- 1...Bb4
- 2.Kxb4#
- 1...f4
- 2.Qg5#
- 1...Kxc5!
- 1...Bxc5
- 1.Re8?
- 1...Bxc5
- 2.Kc3#
- 1...dxc5
- 2.Qe5#
- 2.Qd3#
- 1...Bc1
- 2.Kb4#
- 1...Bb2
- 2.Kb4#
- 1...Bb4
- 2.Kxb4#
- 1...f4
- 2.Qg5#
- 1...Kxc5!
- 1...Bxc5
- 1.Qf2?
- threat
- 2.Qxf5#
- 1...Kxc5
- 2.Re5#
- 1...Bxc5
- 2.Kc3#
- 1...dxc5
- 2.Qd2#
- 1...Bb2
- 2.Kb4#
- 1...f4!
- threat
- 1.Qh2?
- 1...Bxc5
- 2.Kc3#
- 1...dxc5
- 2.Qe5#
- 2.Qd2#
- 1...f4
- 2.Qh5#
- 1...Bc1
- 2.Kb4#
- 1...Bb2
- 2.Kb4#
- 1...Bb4
- 2.Kxb4#
- 1...Kxc5!
- 1...Bxc5
- 1.Qf4?
- threat
- 2.Qc4#
- 2.Qd4#
- 2.Qxf5#
- 1...Bxc5
- 2.Kb2#
- 2.Kc2#
- 2.Kc3#
- 2.Ka4#
- 2.Qc4#
- 1...dxc5
- 2.Qe5#
- 1...Bb2
- 2.Kb4#
- 2.Qc4#
- 1...Kxc5!
- threat
- 1.Qh4?
- threat
- 2.Qc4#
- 2.Qd4#
- 1...Bxc5
- 2.Kb2#
- 2.Kc2#
- 2.Kc3#
- 2.Ka4#
- 2.Qc4#
- 1...dxc5
- 2.Qd8#
- 1...f4
- 2.Qg5#
- 2.Qh5#
- 1...Bb2
- 2.Kb4#
- 2.Qc4#
- 1...Kxc5!
- threat
- 1.Qg5?
- threat
- 2.Qxf5#
- 1...Bxc5
- 2.Kc3#
- 1...dxc5
- 2.Qd8#
- 1...Bb2
- 2.Kb4#
- 1...Kxc5!
- threat
- 1.Qg7?
- threat
- 2.Qd4#
- 1...Bxc5
- 2.Kb2#
- 2.Kc2#
- 2.Kc3#
- 2.Ka4#
- 1...dxc5
- 2.Qe5#
- 2.Qd7#
- 1...Bb2
- 2.Kb4#
- 1...Kxc5!
- threat
- 1.Ba7?
- Keys
- 1.Qg1!
- 1...Kxc5
- 2.Re5#
- 1...Bxc5
- 2.Kc3#
- 1...dxc5
- 2.Qd1#
- 1...f4
- 2.Qg5#
- 1...Bc1
- 2.Kb4#
- 1...Bb2
- 2.Kb4#
- 1...Bb4
- 2.Kxb4#
- 1...Kxc5
- 1.Qg1!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 1
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- B(a);::B(A)+K(B)
- B(a);::B(A)+K(B),XB(a)
- B(a);SBLOCK,XB(E)::B(A)+K(B)
- P(c);OGATEB::QAR(D)
- P(e);N_GUARD,SBLOCK,XB(E)::QAR1(D)
- Tries
- Try
- B(E);
- Threat
- DUALS(7)
- Vars
- B(a);::B(A)+K(B)
- Refutation
- P(d);
- Try
- R(C);
- Vars
- B(a);SBLOCK,XB(E)::B(A)+K(B)
- B(a);::B(A)+K(B)
- B(a);::B(A)+K(B),XB(a)
- P(c);OGATEB::QAR(D)
- Refutation
- K(b);P-FLIGHT,XB(E)
- Try
- R(C);
- Vars
- B(a);SBLOCK,XB(E)::B(A)+K(B)
- B(a);::B(A)+K(B)
- B(a);::B(A)+K(B),XB(a)
- P(c);OGATEB::QAR(D)
- Refutation
- K(b);P-FLIGHT,XB(E)
- Try
- R(C);
- Vars
- B(a);SBLOCK,XB(E)::B(A)+K(B)
- B(a);::B(A)+K(B)
- B(a);::B(A)+K(B),XB(a)
- P(c);OGATEB::QAR(D)
- Refutation
- K(b);P-FLIGHT,XB(E)
- Try
- R(C);
- Vars
- B(a);SBLOCK,XB(E)::B(A)+K(B)
- B(a);::B(A)+K(B)
- B(a);::B(A)+K(B),XB(a)
- P(c);OGATEB::QAR(D)
- Refutation
- K(b);P-FLIGHT,XB(E)
- Try
- Q(D);
- Threat
- QAR2(D),XP(c)
- Vars
- K(b);N_GUARD,P-FLIGHT,XB(E)::QAB(D)+R(C),DCHECK
- B(a);SBLOCK,XB(E)::B(A)+K(B)
- P(e);SBLOCK,XB(E)::QAR(D)
- B(a);::B(A)+K(B)
- Refutation
- P(c);
- Try
- Q(D);
- Vars
- B(a);SBLOCK,XB(E)::B(A)+K(B)
- P(c);OGATEB::QAR(D)
- B(a);::B(A)+K(B)
- B(a);::B(A)+K(B),XB(a)
- Refutation
- K(b);P-FLIGHT,XB(E)
- Try
- Q(D);
- Threat
- DUALS(3)
- Vars
- P(e);N_GUARD,SBLOCK,XB(E)::QAR1(D)
- Refutation
- K(b);P-FLIGHT,XB(E)
- Try
- Q(D);
- Threat
- DUALS(2)
- Vars
- P(e);OGATEB,SBLOCK,XB(E)::QAR(D)
- Refutation
- K(b);P-FLIGHT,XB(E)
- Try
- Q(D);P_PINP(c)
- Threat
- QAR2(D),XP(c)
- Vars
- B(a);SBLOCK,XB(E)::B(A)+K(B)
- P(e);OGATEB,SBLOCK,XB(E)::QAR(D)
- B(a);::B(A)+K(B)
- Refutation
- K(b);P-FLIGHT,XB(E)
- Try
- Q(D);
- Threat
- QAR1(D)
- Vars
- B(a);::B(A)+K(B)
- Refutation
- K(b);P-FLIGHT,XB(E)
- Try
- Actual
- Q(D);
- Vars
- K(b);N_GUARD,P-FLIGHT,XB(E)::QAB(D)+R(C),DCHECK
- B(a);SBLOCK,XB(E)::B(A)+K(B)
- P(e);SBLOCK,XB(E)::QAR(D)
- P(c);OGATEB::QAR(D)
- B(a);::B(A)+K(B)
- B(a);::B(A)+K(B),XB(a)
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