MESON Chess Problem Database
Problem Display
PID: 198571 (1n1N4/1P1PR3/n2k1P2/B3p3/1p1P4/1B2K3/8/Q7 w - - 0 1)
Grimshaw, Percy
Western Daily Mercury, 1919
(First published on Fri Mar 21 1919)
#2
10 + 5
| 15239 | Valois Notebooks | 2019 |
SOLUTION
- SOUND
- Sets
- 1...Sc5
- 2.dxe5#
- 1...Sc7
- 2.Bxb4#
- 1...Sc6
- 2.Sf7#
- 1...Sxd7
- 2.Re6#
- 1...exd4+
- 2.Qxd4#
- 1...Sc5
- Tries
- 1.Kd2?
- 1...Sxd7
- 2.Re6#
- 1...exd4
- 2.Qxd4#
- 1...Sc5
- 2.dxe5#
- 1...Sc7
- 2.Bxb4#
- 1...Sc6
- 2.Sf7#
- 1...e4!
- 1...Sxd7
- 1.Ke2?
- 1...Sxd7
- 2.Re6#
- 1...exd4
- 2.Qxd4#
- 1...Sc5
- 2.dxe5#
- 1...Sc7
- 2.Bxb4#
- 1...Sc6
- 2.Sf7#
- 1...e4!
- 1...Sxd7
- 1.Kf2?
- 1...Sxd7
- 2.Re6#
- 1...exd4
- 2.Qxd4#
- 1...Sc5
- 2.dxe5#
- 1...Sc7
- 2.Bxb4#
- 1...Sc6
- 2.Sf7#
- 1...e4!
- 1...Sxd7
- 1.Kf3?
- 1...Sxd7
- 2.Re6#
- 1...exd4
- 2.Qxd4#
- 1...Sc5
- 2.dxe5#
- 1...Sc7
- 2.Bxb4#
- 1...Sc6
- 2.Sf7#
- 1...e4+!
- 1...Sxd7
- 1.Ke4?
- 1...Sxd7
- 2.Re6#
- 1...exd4
- 2.Qxd4#
- 1...Sc7
- 2.Bxb4#
- 1...Sc6
- 2.Sf7#
- 1...Sc5+!
- 1...Sxd7
- 1.Bb6?
- threat
- 2.dxe5#
- 1...exd4+
- 2.Qxd4#
- 1...Sxd7
- 2.Re6#
- 1...Sc6
- 2.Sf7#
- 1...e4!
- threat
- 1.Qc3?
- threat
- 2.Sf7#
- 2.dxe5#
- 1...exd4+
- 2.Qxd4#
- 1...Sxd7
- 2.Sf7#
- 2.Re6#
- 2.Qc6#
- 1...e4
- 2.Sf7#
- 1...Sc5
- 2.Qxc5#
- 2.dxc5#
- 2.dxe5#
- 1...Sc6
- 2.Sf7#
- 2.Qxc6#
- 1...bxc3!
- threat
- 1.Qc1?
- threat
- 2.Sf7#
- 2.dxe5#
- 1...Sxd7
- 2.Sf7#
- 2.Re6#
- 2.Qc6#
- 1...e4
- 2.Sf7#
- 1...Sc5
- 2.Qxc5#
- 2.dxc5#
- 2.dxe5#
- 1...Sc6
- 2.Sf7#
- 2.Qxc6#
- 1...exd4+!
- threat
- 1.Qd1?
- 1...exd4+
- 2.Qxd4#
- 1...Sxd7
- 2.Re6#
- 1...Sc5
- 2.dxe5#
- 1...Sc7
- 2.Bxb4#
- 1...Sc6
- 2.Sf7#
- 1...e4!
- 1...exd4+
- 1.Qe1?
- 1...Sxd7
- 2.Re6#
- 1...e4
- 2.Qg3#
- 1...Sc5
- 2.dxe5#
- 1...Sc7
- 2.Bxb4#
- 2.Qxb4#
- 1...Sc6
- 2.Sf7#
- 1...exd4+!
- 1...Sxd7
- 1.Qf1?
- 1...Sxd7
- 2.Re6#
- 1...e4
- 2.Qf4#
- 1...Sc5
- 2.dxe5#
- 1...Sc7
- 2.Bxb4#
- 1...Sc6
- 2.Sf7#
- 1...exd4+!
- 1...Sxd7
- 1.Qg1?
- 1...Sxd7
- 2.Re6#
- 1...e4
- 2.Qh2#
- 2.Qg3#
- 1...Sc5
- 2.dxe5#
- 1...Sc7
- 2.Bxb4#
- 1...Sc6
- 2.Sf7#
- 1...exd4+!
- 1...Sxd7
- 1.Qh1?
- threat
- 2.Sf7#
- 2.Qd5#
- 1...e4
- 2.Qh2#
- 1...Sc7
- 2.Sf7#
- 2.Bxb4#
- 1...exd4+!
- threat
- 1.Qa2?
- 1...Sxd7
- 2.Re6#
- 1...e4
- 2.Qh2#
- 1...Sc5
- 2.dxe5#
- 1...Sc7
- 2.Bxb4#
- 1...Sc6
- 2.Sf7#
- 1...exd4+!
- 1...Sxd7
- 1.Qa4?
- threat
- 2.Sf7#
- 2.Re6#
- 1...Sc5
- 2.Sf7#
- 2.dxe5#
- 1...Sc7
- 2.Sf7#
- 2.Bxb4#
- 2.Qxb4#
- 1...Sc6
- 2.Sf7#
- 2.Qxc6#
- 1...exd4+!
- threat
- 1.Kd2?
- Keys
- 1.Qb2!
- 1...exd4+
- 2.Qxd4#
- 1...Sxd7
- 2.Re6#
- 1...e4
- 2.Qh2#
- 1...Sc5
- 2.dxe5#
- 1...Sc7
- 2.Bxb4#
- 1...Sc6
- 2.Sf7#
- 1...exd4+
- 1.Qb2!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- S(c);SBLOCK::P(D),XP(b)
- S(c);N_GUARD,SBLOCK::B(E),XP(a)
- S(e);SBLOCK::S(J)
- S(e);SBLOCK,XP(H)::R1(I)
- P(b);CHECK,OGATE,XP(D)::QAR2(A),XP(b)
- Tries
- Try
- K(C);S_FLIGHT
- Vars
- S(e);SBLOCK,XP(H)::R1(I)
- P(b);OGATE,XP(D)::QAR2(A),XP(b)
- S(c);SBLOCK::P(D),XP(b)
- S(c);N_GUARD,SBLOCK::B(E),XP(a)
- S(e);SBLOCK::S(J)
- Refutation
- P(b);
- Try
- K(C);P-FLIGHT
- Vars
- S(e);SBLOCK,XP(H)::R1(I)
- P(b);OGATE,XP(D)::QAR2(A),XP(b)
- S(c);SBLOCK::P(D),XP(b)
- S(c);N_GUARD,SBLOCK::B(E),XP(a)
- S(e);SBLOCK::S(J)
- Refutation
- P(b);
- Try
- K(C);S_FLIGHT
- Vars
- S(e);SBLOCK,XP(H)::R1(I)
- P(b);OGATE,XP(D)::QAR2(A),XP(b)
- S(c);SBLOCK::P(D),XP(b)
- S(c);N_GUARD,SBLOCK::B(E),XP(a)
- S(e);SBLOCK::S(J)
- Refutation
- P(b);
- Try
- K(C);P-FLIGHT
- Vars
- S(e);SBLOCK,XP(H)::R1(I)
- P(b);OGATE,XP(D)::QAR2(A),XP(b)
- S(c);SBLOCK::P(D),XP(b)
- S(c);N_GUARD,SBLOCK::B(E),XP(a)
- S(e);SBLOCK::S(J)
- Refutation
- P(b);CHECK
- Try
- K(C);P-FLIGHT
- Vars
- S(e);SBLOCK,XP(H)::R1(I)
- P(b);OGATE,XP(D)::QAR2(A),XP(b)
- S(c);N_GUARD,SBLOCK::B(E),XP(a)
- S(e);SBLOCK::S(J)
- Refutation
- S(c);CHECK
- Try
- B(E);
- Threat
- P(D),XP(b)
- Vars
- P(b);CHECK,OGATE,XP(D)::QAR2(A),XP(b)
- S(e);SBLOCK,XP(H)::R1(I)
- S(e);SBLOCK::S(J)
- Refutation
- P(b);
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- P(b);CHECK,OGATE,XP(D)::QAR2(A),XP(b)
- P(b);::S(J)
- Refutation
- P(a);XQ(A)
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- P(b);::S(J)
- Refutation
- P(b);CHECK,XP(D)
- Try
- Q(A);
- Vars
- P(b);CHECK,OGATE,P_SPINP(b),XP(D)::QAR2(A),XP(b)
- S(e);SBLOCK,XP(H)::R1(I)
- S(c);SBLOCK::QAR(A)+P(D)DCHECK,XP(b)
- S(c);N_GUARD,SBLOCK::B(E),XP(a)
- S(e);SBLOCK::S(J)
- Refutation
- P(b);
- Try
- Q(A);
- Vars
- S(e);SBLOCK,XP(H)::R1(I)
- P(b);OGATEB::QAB(A)
- S(c);SBLOCK::P(D),XP(b)
- S(e);SBLOCK::S(J)
- Refutation
- P(b);CHECK,XP(D)
- Try
- Q(A);
- Vars
- S(e);SBLOCK,XP(H)::R1(I)
- P(b);OGATEB::QAB(A)
- S(c);SBLOCK::P(D),XP(b)
- S(c);N_GUARD,SBLOCK::B(E),XP(a)
- S(e);SBLOCK::S(J)
- Refutation
- P(b);CHECK,XP(D)
- Try
- Q(A);
- Vars
- S(e);SBLOCK,XP(H)::R1(I)
- S(c);SBLOCK::P(D),XP(b)
- S(c);N_GUARD,SBLOCK::B(E),XP(a)
- S(e);SBLOCK::S(J)
- Refutation
- P(b);CHECK,XP(D)
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- P(b);OGATEB::QAB(A)
- Refutation
- P(b);CHECK,XP(D)
- Try
- Q(A);
- Vars
- S(e);SBLOCK,XP(H)::R1(I)
- P(b);OGATEB::QAB(A)
- S(c);SBLOCK::P(D),XP(b)
- S(c);N_GUARD,SBLOCK::B(E),XP(a)
- S(e);SBLOCK::S(J)
- Refutation
- P(b);CHECK,XP(D)
- Try
- Q(A);
- Threat
- DUALS(2)
- Refutation
- P(b);CHECK,XP(D)
- Try
- Actual
- Q(A);
- Vars
- P(b);CHECK,OGATE,XP(D)::QAR2(A),XP(b)
- S(e);SBLOCK,XP(H)::R1(I)
- P(b);OGATEB::QAB(A)
- S(c);SBLOCK::P(D),XP(b)
- S(c);N_GUARD,SBLOCK::B(E),XP(a)
- S(e);SBLOCK::S(J)
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