MESON Chess Problem Database
Problem Display
PID: 274539 (1b6/6n1/Q1P1N1R1/4kp2/1r1N3K/3b2P1/1B3P2/3R3B w - - 0 1)
Sumner, Cecil Carol Winton
Western Morning News, 1925
(First published on Sat Jan 24 1925)
#2
11 + 6
| 15239 | Valois Notebooks | 2024 |
SOLUTION
- SOUND
- Sets
- 1...Rb5
- 2.Sxb5#
- 1...Rb6
- 2.Sb5#
- 1...Rb7
- 2.Sb5#
- 1...Bc4
- 2.Sb3#
- 1...Be4
- 2.Sf3#
- 1...Bd6
- 2.f4#
- 1...Sxe6
- 2.Rxe6#
- 1...Rb5
- Tries
- 1.Sc5?
- threat
- 2.Sxd3#
- 2.Sd7#
- 2.f4#
- 1...Rxd4+
- 2.f4#
- 1...Bxa6
- 2.Sd7#
- 2.f4#
- 1...Be4
- 2.Sf3#
- 1...Se6
- 2.Rxe6#
- 1...Rb3
- 2.Sdxb3#
- 2.Sd7#
- 2.f4#
- 1...Rb7
- 2.Sdb3#
- 2.Sb5#
- 2.Sxd3#
- 2.f4#
- 1...Bb1
- 2.Sd7#
- 2.f4#
- 1...Bf1
- 2.Sd7#
- 2.f4#
- 1...Bc2
- 2.Sd7#
- 2.f4#
- 1...Be2
- 2.Sd7#
- 2.Qxe2#
- 2.f4#
- 1...Bc4
- 2.Sdb3#
- 2.Sf3#
- 2.Sd7#
- 2.f4#
- 1...Bb5
- 2.Sd7#
- 2.f4#
- 1...Sh5
- 2.Sxd3#
- 2.Sd7#
- 2.Re6#
- 1...f4
- 2.Sxd3#
- 2.Sd7#
- 1...Rxb2!
- threat
- 1.Sg5?
- threat
- 2.Sf7#
- 2.f4#
- 1...Rxd4+
- 2.f4#
- 1...Be4
- 2.Sdf3#
- 1...Se6
- 2.Sf7#
- 2.Rxe6#
- 1...Rb7
- 2.Sb3#
- 2.Sb5#
- 2.f4#
- 1...Bc4
- 2.Sb3#
- 2.Sdf3#
- 2.f4#
- 1...Sh5
- 2.Sf7#
- 2.Re6#
- 1...f4
- 2.Sf7#
- 1...Rxb2!
- threat
- 1.Sxg7?
- threat
- 2.Re6#
- 2.f4#
- 1...Rxd4+
- 2.f4#
- 1...Be4
- 2.Sf3#
- 1...Bc4
- 2.Sb3#
- 2.f4#
- 1...f4
- 2.Re6#
- 1...Rxb2!
- threat
- 1.Sd8?
- threat
- 2.Sf7#
- 2.f4#
- 1...Rxd4+
- 2.f4#
- 1...Be4
- 2.Sf3#
- 1...Se6
- 2.Sf7#
- 2.Rxe6#
- 1...Rb7
- 2.Sb3#
- 2.Sb5#
- 2.f4#
- 1...Bc4
- 2.Sb3#
- 2.f4#
- 1...Sh5
- 2.Sf7#
- 2.Re6#
- 1...f4
- 2.Sf7#
- 1...Rxb2!
- threat
- 1.Sf8?
- threat
- 2.Sd7#
- 2.f4#
- 1...Rxd4+
- 2.f4#
- 1...Be4
- 2.Sf3#
- 1...Se6
- 2.Rxe6#
- 1...Rb7
- 2.Sb3#
- 2.Sb5#
- 2.f4#
- 1...Sh5
- 2.Sd7#
- 2.Re6#
- 1...f4
- 2.Sd7#
- 1...Rxb2!
- threat
- 1.Qc4?
- threat
- 2.Qd5#
- 2.Qc5#
- 1...Kd6
- 2.Qc5#
- 1...Bxc4
- 2.Sb3#
- 1...Sxe6
- 2.Rxe6#
- 2.Qd5#
- 2.Qxe6#
- 1...Rb5
- 2.Sxb5#
- 1...Be4
- 2.Sb3#
- 2.Sf3#
- 1...Bd6
- 2.Sb3#
- 2.Sf3#
- 2.Qd5#
- 2.f4#
- 1...Ba7
- 2.Qd5#
- 1...Rxc4!
- threat
- 1.Qb5+?
- 1...Kd6
- 2.Qc5#
- 1...Rxb5
- 2.Sxb5#
- 1...Bxb5!
- 1...Kd6
- 1.Qa5+?
- 1...Kd6
- 2.Qc5#
- 1...Rb5
- 2.Sxb5#
- 1...Bb5!
- 1...Kd6
- 1.Qa7?
- threat
- 2.Qc5#
- 1...Rxd4+
- 2.Qxd4#
- 1...Kd6
- 2.Qc5#
- 1...Sxe6
- 2.Rxe6#
- 1...Be4
- 2.Sf3#
- 1...Rc4
- 2.Qxb8#
- 1...Rb5
- 2.Sxb5#
- 1...Rb6
- 2.Sb5#
- 1...Bc4
- 2.Sb3#
- 1...Bd6
- 2.Qxg7#
- 2.f4#
- 1...Bxa7!
- threat
- 1.Sc5?
- Keys
- 1.Qb6!
- threat
- 2.Qc5#
- 1...Rxd4+
- 2.Qxd4#
- 1...Kd6
- 2.Qc5#
- 1...Rxb6
- 2.Sb5#
- 1...Sxe6
- 2.Rxe6#
- 1...Be4
- 2.Sf3#
- 1...Rc4
- 2.Qxb8#
- 1...Rb5
- 2.Sxb5#
- 1...Bc4
- 2.Sb3#
- 1...Bd6
- 2.f4#
- 1...Ba7
- 2.Qc7#
- threat
- 1.Qb6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 1
- Sets
- R(b);N_PINS(F)::B(C)+S(F),XR(b)
- R(b);N_PINS(F)::B(C)+S(F)
- B(a);N_PINS(F)::B(C)+S(F)
- B(a);N_PINS(F),SBLOCK::B(C)+S(F),DCHECK
- B(f);SBLOCK::P(D)
- S(e);OGATE,XS(J)::R1(K),XS(e)
- Tries
- Try
- S(J);
- Threat
- DUALS(3)
- Vars
- R(b);CHECK,P_SPINR(b),XS(F)::P(D)
- B(a);N_PINS(F)::B(C)+S(F),DCHECK
- S(e);N_GUARD::R1(K),XS(e)
- Refutation
- R(b);N_PINS(F),XB(C)
- Try
- S(J);
- Threat
- DUALS(2)
- Vars
- R(b);CHECK,P_SPINR(b),XS(F)::P(D)
- B(a);N_PINS(F)::B(C)+S(F),DCHECK
- P(d);N_PINS(F)::S(J)
- Refutation
- R(b);N_PINS(F),XB(C)
- Try
- S(J);XS(e)
- Threat
- DUALS(2)
- Vars
- R(b);CHECK,P_SPINR(b),XS(F)::P(D)
- B(a);N_PINS(F),SBLOCK::B(C)+S(F),DCHECK
- P(d);N_PINS(F)::R1(K)
- Refutation
- R(b);N_PINS(F),XB(C)
- Try
- S(J);
- Threat
- DUALS(2)
- Vars
- R(b);CHECK,P_SPINR(b),XS(F)::P(D)
- B(a);N_PINS(F),SBLOCK::B(C)+S(F),DCHECK
- P(d);N_PINS(F)::S(J)
- Refutation
- R(b);N_PINS(F),XB(C)
- Try
- S(J);
- Threat
- DUALS(2)
- Vars
- R(b);CHECK,P_SPINR(b),XS(F)::P(D)
- B(a);N_PINS(F),SBLOCK::B(C)+S(F),DCHECK
- S(e);N_GUARD::R1(K),XS(e)
- P(d);N_PINS(F)::S(J)
- Refutation
- R(b);N_PINS(F),XB(C)
- Try
- Q(H);N_SPINS(F)
- Threat
- DUALS(2)
- Vars
- K(c);S_FLIGHT::QAB1(H)
- B(a);XQ(H)::B(C)+S(F)
- R(b);N_GUARD::B(C)+S(F),XR(b)
- B(f);::QAR1(H)
- Refutation
- R(b);P_PINS(F),XQ(H)
- Try
- Q(H);CHECK
- Vars
- K(c);S_FLIGHT::QAB1(H)
- R(b);N_PINS(F),XQ(H)::B(C)+S(F),XR(b)
- Refutation
- B(a);XQ(H)
- Try
- Q(H);CHECK
- Vars
- K(c);S_FLIGHT::QAB1(H)
- R(b);N_PINS(F),P_SPINR(b)::B(C)+S(F),XR(b)
- Refutation
- B(a);P_SPINB(a)
- Try
- Q(H);
- Threat
- QAR2(H)
- Vars
- R(b);CHECK,OGATE,P_SPINR(b),XS(F)::QAB1(H),XR(b)
- K(c);S_FLIGHT::QAB1(H)
- S(e);OGATE,XS(J)::R1(K),XS(e)
- B(a);N_PINS(F),SBLOCK::B(C)+S(F),DCHECK
- R(b);N_GUARD::QAB(H),XB(f)
- R(b);N_PINS(F)::B(C)+S(F),XR(b)
- R(b);N_PINS(F)::B(C)+S(F)
- B(a);N_PINS(F)::B(C)+S(F)
- Refutation
- B(f);XQ(H)
- Try
- Actual
- Q(H);
- Threat
- QAR2(H)
- Vars
- R(b);CHECK,OGATE,P_SPINR(b),XS(F)::QAB1(H),XR(b)
- K(c);S_FLIGHT::QAB1(H)
- R(b);N_PINS(F),XQ(H)::B(C)+S(F)
- S(e);OGATE,XS(J)::R1(K),XS(e)
- B(a);N_PINS(F),SBLOCK::B(C)+S(F),DCHECK
- R(b);N_GUARD::QAB(H),XB(f)
- R(b);N_PINS(F)::B(C)+S(F),XR(b)
- B(a);N_PINS(F)::B(C)+S(F)
- B(f);SBLOCK::P(D)
- B(f);N_GUARD::QAB(H)
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