MESON Chess Problem Database
Problem Display
PID: 221556 (Q5BK/1n3N2/2p1qp2/3k1N2/1R3P2/1pp3pR/1PP5/6B1 w - - 0 1)
Stent, James
The Field, 1892
(First published on Sat Apr 16 1892)
#2
11 + 8
| 15239 | Valois Notebooks | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Qxf7
- 2.Bxf7#
- 1...Qe1
- 2.Se5#
- 1...Qe2
- 2.Se5#
- 1...Qe4
- 2.Se5#
- 1...Qe5
- 2.Sxe5#
- 1...Qd6
- 2.S7xd6#
- 1...Sc5
- 2.Rd4#
- 1...bxc2
- 2.Qa2#
- 1...g2
- 2.Rd3#
- 1...Qxf7
- Tries
- 1.Sg5?
- threat
- 2.Bxe6#
- 1...Qxg8+
- 2.Qxg8#
- 1...c5
- 2.Qxb7#
- 1...Qf7
- 2.Bxf7#
- 1...Sc5
- 2.Rd4#
- 1...Sd8
- 2.Qxd8#
- 1...fxg5!
- threat
- 1.S7h6?
- 1...Qxg8+
- 2.Qxg8#
- 1...bxc2
- 2.Qa2#
- 1...Qf7
- 2.Bxf7#
- 1...c5
- 2.Qxb7#
- 1...Sa5
- 2.Qd8#
- 1...Sc5
- 2.Rd4#
- 1...Sd6
- 2.Se7#
- 1...Sd8
- 2.Qxd8#
- 1...g2
- 2.Rd3#
- 1...cxb2!
- 1...Qxg8+
- 1.Sd8?
- threat
- 2.Bxe6#
- 1...Sxd8
- 2.Qxd8#
- 1...Qf7
- 2.Bxf7#
- 1...Sc5
- 2.Rd4#
- 2.Qxc6#
- 1...Qxg8+!
- threat
- 1.Qa6?
- threat
- 2.Qd3#
- 2.Qc4#
- 1...Qxf5
- 2.Qc4#
- 1...Qxf7
- 2.Bxf7#
- 2.Qc4#
- 1...Qd7
- 2.Qc4#
- 1...Qc8
- 2.Qc4#
- 1...Qe1
- 2.Se5#
- 2.Qc4#
- 1...Qe2
- 2.Se5#
- 1...Qe3
- 2.Qc4#
- 1...Qe4
- 2.Se5#
- 1...Qe5
- 2.Sxe5#
- 2.Qc4#
- 1...Qd6
- 2.S7xd6#
- 2.Qc4#
- 1...Qe7
- 2.Qc4#
- 1...Qe8
- 2.Qc4#
- 1...Sa5
- 2.Qd3#
- 1...Sc5
- 2.Rd4#
- 2.Qc4#
- 1...Sd6
- 2.Qd3#
- 1...c5!
- threat
- 1.Sg5?
- Keys
- 1.S7d6!
- 1...Qxg8+
- 2.Qxg8#
- 1...Sxd6
- 2.Se7#
- 1...bxc2
- 2.Qa2#
- 1...cxb2
- 2.c4#
- 1...Qf7
- 2.Bxf7#
- 1...c5
- 2.Qxb7#
- 1...Sa5
- 2.Rb5#
- 1...Sc5
- 2.Rd4#
- 1...Sd8
- 2.Rb5#
- 1...g2
- 2.Rd3#
- 1...Qxg8+
- 1.S7d6!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 5
- Sets
- Q(f);OGATE,P_SPINQ(f),XS(H)::B(J),XQ(f)
- Q(f);::B(J)+S(H)
- Q(f);::B(J)+S(H),XQ(f)
- S(h);P_SPINP(e),SBLOCK::R1(E)
- P(a);OGATEB,XP(C)::QAB(I)
- P(c);OGATE::R(D)
- Tries
- Try
- S(H);P_PINQ(f)
- Threat
- B(J),XQ(f)
- Vars
- Q(f);CHECK,N_SPINQ(f),OGATE,XB(J)::QAB(I),XQ(f)
- P(e);OGATEB,P_SPINS(h)::QAB(I),XS(h)
- Q(f);OGATEB::B(J),XQ(f)
- S(h);P_SPINP(e),SBLOCK::R1(E)
- S(h);N_GUARD,P_SPINP(e)::QAR(I),XS(h)
- Refutation
- P(g);XS(H)
- Try
- S(H);P_PINQ(f)
- Vars
- Q(f);CHECK,N_SPINQ(f),OGATE,XB(J)::QAB(I),XQ(f)
- P(a);OGATEB,XP(C)::QAB(I)
- Q(f);OGATEB::B(J),XQ(f)
- P(e);OGATEB,P_SPINS(h)::QAB(I),XS(h)
- S(h);N_GUARD,P_SPINP(e)::QAR(I)
- S(h);P_SPINP(e),SBLOCK::R1(E)
- S(h);P_SPINP(e),SBLOCK::S(G)
- S(h);N_GUARD,P_SPINP(e)::QAR(I),XS(h)
- P(c);OGATE::R(D)
- Refutation
- P(b);XP(B)
- Try
- S(H);P_PINQ(f)
- Threat
- B(J),XQ(f)
- Vars
- S(h);OGATE,P_SPINP(e),XS(H)::QAR(I),XS(h)
- Q(f);OGATEB::B(J),XQ(f)
- Refutation
- Q(f);CHECK,N_SPINQ(f),XB(J)
- Try
- Q(I);
- Threat
- DUALS(2)
- Vars
- Q(f);XS(G)::QAB1(I)
- Q(f);::QAB1(I)
- Q(f);P_PINB(J)::QAB1(I)
- Q(f);::B(J)+S(H)
- S(h);::QAR2(I)
- Refutation
- P(e);
- Try
- Actual
- S(H);P_PINQ(f)
- Vars
- Q(f);CHECK,N_SPINQ(f),OGATE,XB(J)::QAB(I),XQ(f)
- S(h);P_SPINP(e),SBLOCK,XS(H)::S(G)
- P(a);OGATEB,XP(C)::QAB(I)
- P(b);OGATE,XP(B)::P(C)
- Q(f);OGATEB::B(J),XQ(f)
- P(e);OGATEB,P_SPINS(h)::QAB(I),XS(h)
- S(h);N_GUARD,P_SPINP(e)::R(E)
- S(h);P_SPINP(e),SBLOCK::R1(E)
- P(c);OGATE::R(D)
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