MESON Chess Problem Database
Problem Display
PID: 205154 (KQb4b/Nn6/PR1rP1pB/n1pPk3/4P3/3P2p1/2NP2B1/5R2 w - - 0 1)
Goulty, Allison Howard
The Observer, 1952
(First published on Sun Dec 14 1952)
#2
14 + 9
| 15239 | Valois Notebooks | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Bxe6
- 2.Qxh8#
- 1...Bd7
- 2.Qxh8#
- 1...Bf6
- 2.Bf4#
- 1...Bg7
- 2.Bxg7#
- 1...Sb3
- 2.Sc6#
- 1...Sc4
- 2.Sc6#
- 1...Sc6
- 2.Sxc6#
- 1...Sd8
- 2.Qxd6#
- 1...c4
- 2.d4#
- 1...g5
- 2.Rf5#
- 1...Bxe6
- Tries
- 1.Bh1?
- 1...Bxe6
- 2.Qxh8#
- 1...Bf6
- 2.Bf4#
- 1...Bd7
- 2.Qxh8#
- 1...Bg7
- 2.Bxg7#
- 1...Sb3
- 2.Sc6#
- 1...Sc4
- 2.Sc6#
- 1...Sc6
- 2.Sxc6#
- 1...Sd8
- 2.Qxd6#
- 1...c4
- 2.d4#
- 1...g5
- 2.Rf5#
- 1...g2!
- 1...Bxe6
- 1.Be3?
- 1...Bxe6
- 2.Qxh8#
- 1...Bf6
- 2.Bf4#
- 1...Bd7
- 2.Qxh8#
- 1...Sb3
- 2.Sc6#
- 1...Sc4
- 2.Sc6#
- 1...Sc6
- 2.Sxc6#
- 1...Sd8
- 2.Qxd6#
- 1...c4
- 2.Bd4#
- 2.d4#
- 1...g5
- 2.Rf5#
- 1...Bg7!
- 1...Bxe6
- 1.Bg5?
- 1...Bxe6
- 2.Qxh8#
- 1...Bf6
- 2.Bf4#
- 2.Bxf6#
- 1...Bd7
- 2.Qxh8#
- 1...Sb3
- 2.Sc6#
- 1...Sc4
- 2.Sc6#
- 1...Sc6
- 2.Sxc6#
- 1...Sd8
- 2.Qxd6#
- 1...c4
- 2.d4#
- 1...Bg7!
- 1...Bxe6
- 1.Rf2?
- 1...Bxe6
- 2.Qxh8#
- 1...Bf6
- 2.Bf4#
- 1...Bd7
- 2.Qxh8#
- 1...Bg7
- 2.Bxg7#
- 1...Sb3
- 2.Sc6#
- 1...Sc4
- 2.Sc6#
- 1...Sc6
- 2.Sxc6#
- 1...Sd8
- 2.Qxd6#
- 1...c4
- 2.d4#
- 1...g5
- 2.Rf5#
- 1...gxf2!
- 1...Bxe6
- 1.Rf3?
- 1...Bxe6
- 2.Qxh8#
- 1...Bf6
- 2.Bf4#
- 1...Bd7
- 2.Qxh8#
- 1...Bg7
- 2.Bxg7#
- 1...Sb3
- 2.Sc6#
- 1...Sc4
- 2.Sc6#
- 1...Sc6
- 2.Sxc6#
- 1...Sd8
- 2.Qxd6#
- 1...g5
- 2.Rf5#
- 1...c4!
- 1...Bxe6
- 1.Rf7?
- threat
- 2.Bf4#
- 1...g5
- 2.Rf5#
- 1...Bf6!
- threat
- 1.Rf8?
- threat
- 2.Bf4#
- 1...g5
- 2.Rf5#
- 1...Bf6!
- threat
- 1.Rb2?
- 1...Bxe6
- 2.Qxh8#
- 1...Bf6
- 2.Bf4#
- 1...Bd7
- 2.Qxh8#
- 1...Bg7
- 2.Bxg7#
- 1...Sb3
- 2.Sc6#
- 1...Sc4
- 2.Sc6#
- 1...Sc6
- 2.Sxc6#
- 1...c4
- 2.d4#
- 1...g5
- 2.Rf5#
- 1...Sd8!
- 1...Bxe6
- 1.Rb3?
- 1...Bxe6
- 2.Qxh8#
- 1...Sxb3
- 2.Sc6#
- 1...Bf6
- 2.Bf4#
- 1...Bd7
- 2.Qxh8#
- 1...Bg7
- 2.Bxg7#
- 1...Sc4
- 2.Sc6#
- 1...Sc6
- 2.Sxc6#
- 1...c4
- 2.d4#
- 1...g5
- 2.Rf5#
- 1...Sd8!
- 1...Bxe6
- 1.Rb4?
- 1...Bxe6
- 2.Qxh8#
- 1...cxb4
- 2.d4#
- 1...Bf6
- 2.Bf4#
- 1...Bd7
- 2.Qxh8#
- 1...Bg7
- 2.Bxg7#
- 1...Sb3
- 2.Sc6#
- 1...Sc4
- 2.Sc6#
- 1...Sc6
- 2.Sxc6#
- 1...c4
- 2.d4#
- 1...g5
- 2.Rf5#
- 1...Sd8!
- 1...Bxe6
- 1.Rb5?
- 1...Bxe6
- 2.Qxh8#
- 1...Bf6
- 2.Bf4#
- 1...Bd7
- 2.Qxh8#
- 1...Bg7
- 2.Bxg7#
- 1...Sb3
- 2.Sc6#
- 1...Sc4
- 2.Sc6#
- 1...Sc6
- 2.Sxc6#
- 1...c4
- 2.d4#
- 1...g5
- 2.Rf5#
- 1...Sd8!
- 1...Bxe6
- 1.Rxd6?
- 1...Bxe6
- 2.Rxe6#
- 1...Sxd6
- 2.Qb2#
- 1...Bf6
- 2.Bf4#
- 1...Bg7
- 2.Bxg7#
- 1...Sb3
- 2.Sc6#
- 1...Sc4
- 2.Sc6#
- 1...Sc6
- 2.Sxc6#
- 1...Sd8
- 2.Rb6#
- 2.Rc6#
- 2.Rd7#
- 2.Rxd8#
- 1...c4
- 2.d4#
- 1...g5
- 2.Rf5#
- 1...Bd7!
- 1...Bxe6
- 1.Rxb7?
- 1...Bxe6
- 2.Qxh8#
- 1...Sxb7
- 2.Sc6#
- 1...Bf6
- 2.Bf4#
- 1...Bd7
- 2.Qxh8#
- 1...Bg7
- 2.Bxg7#
- 1...Sb3
- 2.Sc6#
- 1...Sc4
- 2.Sc6#
- 1...Sc6
- 2.Sxc6#
- 1...c4
- 2.d4#
- 1...g5
- 2.Rf5#
- 1...Bxb7+!
- 1...Bxe6
- 1.axb7?
- threat
- 2.Qxd6#
- 1...Sxb7
- 2.Sc6#
- 1...Sc4
- 2.Sc6#
- 1...Sc6
- 2.Sxc6#
- 1...Bxb7+!
- threat
- 1.Bh1?
- Keys
- 1.Rbb1!
- 1...Bxe6
- 2.Qxh8#
- 1...Bf6
- 2.Bf4#
- 1...Bd7
- 2.Qxh8#
- 1...Bg7
- 2.Bxg7#
- 1...Sb3
- 2.Sc6#
- 1...Sc4
- 2.Sc6#
- 1...Sc6
- 2.Sxc6#
- 1...Sd8
- 2.Qb2#
- 1...c4
- 2.d4#
- 1...g5
- 2.Rf5#
- 1...Bxe6
- 1.Rbb1!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 1
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- B(h);OGATE,XP(J)::QAB(N),XB(i)
- B(h);OGATE::QAB(N),XB(i)
- B(i);SBLOCK::B(K)
- B(i);N_GUARD::B(K),XB(i)
- S(b);N_GUARD::S(L)
- S(b);N_GUARD::S(L),XS(b)
- S(g);N_GUARD::QAB1(N),XR(e)
- P(c);N_GUARD::P(E)
- P(f);N_GUARD::R1(A)
- Tries
- Try
- B(D);
- Vars
- B(h);OGATE,XP(J)::QAB(N),XB(i)
- B(i);SBLOCK::B(K)
- B(h);OGATE::QAB(N),XB(i)
- B(i);N_GUARD::B(K),XB(i)
- S(b);N_GUARD::S(L)
- S(b);N_GUARD::S(L),XS(b)
- S(g);N_GUARD::QAB1(N),XR(e)
- P(c);N_GUARD::P(E)
- P(f);N_GUARD::R1(A)
- Refutation
- P(a);
- Try
- B(K);
- Vars
- B(h);OGATE,XP(J)::QAB(N),XB(i)
- B(i);SBLOCK::B(K)
- B(h);OGATE::QAB(N),XB(i)
- S(b);N_GUARD::S(L)
- S(b);N_GUARD::S(L),XS(b)
- S(g);N_GUARD::QAB1(N),XR(e)
- P(f);N_GUARD::R1(A)
- Refutation
- B(i);
- Try
- B(K);
- Vars
- B(h);OGATE,XP(J)::QAB(N),XB(i)
- B(h);OGATE::QAB(N),XB(i)
- S(b);N_GUARD::S(L)
- S(b);N_GUARD::S(L),XS(b)
- S(g);N_GUARD::QAB1(N),XR(e)
- P(c);N_GUARD::P(E)
- Refutation
- B(i);
- Try
- R(A);
- Vars
- B(h);OGATE,XP(J)::QAB(N),XB(i)
- B(i);SBLOCK::B(K)
- B(h);OGATE::QAB(N),XB(i)
- B(i);N_GUARD::B(K),XB(i)
- S(b);N_GUARD::S(L)
- S(b);N_GUARD::S(L),XS(b)
- S(g);N_GUARD::QAB1(N),XR(e)
- P(c);N_GUARD::P(E)
- P(f);N_GUARD::R1(A)
- Refutation
- P(a);XR(A)
- Try
- R(A);
- Vars
- B(h);OGATE,XP(J)::QAB(N),XB(i)
- B(i);SBLOCK::B(K)
- B(h);OGATE::QAB(N),XB(i)
- B(i);N_GUARD::B(K),XB(i)
- S(b);N_GUARD::S(L)
- S(b);N_GUARD::S(L),XS(b)
- S(g);N_GUARD::QAB1(N),XR(e)
- P(f);N_GUARD::R1(A)
- Refutation
- P(c);
- Try
- R(A);
- Threat
- B(K)
- Vars
- P(f);N_GUARD::R1(A)
- Refutation
- B(i);
- Try
- R(A);
- Threat
- B(K)
- Vars
- P(f);N_GUARD::R1(A)
- Refutation
- B(i);
- Try
- R(I);
- Vars
- B(h);OGATE,XP(J)::QAB(N),XB(i)
- B(i);SBLOCK::B(K)
- B(h);OGATE::QAB(N),XB(i)
- B(i);N_GUARD::B(K),XB(i)
- S(b);N_GUARD::S(L)
- S(b);N_GUARD::S(L),XS(b)
- P(c);N_GUARD::P(E)
- P(f);N_GUARD::R1(A)
- Refutation
- S(g);
- Try
- R(I);
- Vars
- B(h);OGATE,XP(J)::QAB(N),XB(i)
- S(b);N_GUARD,XR(I)::S(L)
- B(i);SBLOCK::B(K)
- B(h);OGATE::QAB(N),XB(i)
- B(i);N_GUARD::B(K),XB(i)
- S(b);N_GUARD::S(L)
- S(b);N_GUARD::S(L),XS(b)
- P(c);N_GUARD::P(E)
- P(f);N_GUARD::R1(A)
- Refutation
- S(g);
- Try
- R(I);
- Vars
- B(h);OGATE,XP(J)::QAB(N),XB(i)
- P(c);N_GUARD,XR(I)::P(E)
- B(i);SBLOCK::B(K)
- B(h);OGATE::QAB(N),XB(i)
- B(i);N_GUARD::B(K),XB(i)
- S(b);N_GUARD::S(L)
- S(b);N_GUARD::S(L),XS(b)
- P(c);N_GUARD::P(E)
- P(f);N_GUARD::R1(A)
- Refutation
- S(g);
- Try
- R(I);
- Vars
- B(h);OGATE,XP(J)::QAB(N),XB(i)
- B(i);SBLOCK::B(K)
- B(h);OGATE::QAB(N),XB(i)
- B(i);N_GUARD::B(K),XB(i)
- S(b);N_GUARD::S(L)
- S(b);N_GUARD::S(L),XS(b)
- P(c);N_GUARD::P(E)
- P(f);N_GUARD::R1(A)
- Refutation
- S(g);
- Try
- R(I);XR(e)
- Vars
- B(h);OGATE,XP(J)::QAB(N)+R(I),DCHECK,XB(h)
- S(g);OGATE,P_SPINS(g),SBLOCK,XR(I)::QAB(N)
- B(i);SBLOCK::B(K)
- B(i);N_GUARD::B(K),XB(i)
- S(b);N_GUARD::S(L)
- S(b);N_GUARD::S(L),XS(b)
- P(c);N_GUARD::P(E)
- P(f);N_GUARD::R1(A)
- Refutation
- B(h);
- Try
- R(I);XS(g)
- Vars
- B(h);OGATE,XP(J)::QAB(N),XB(i)
- S(b);N_GUARD,XR(I)::S(L)
- B(i);SBLOCK::B(K)
- B(h);OGATE::QAB(N),XB(i)
- B(i);N_GUARD::B(K),XB(i)
- S(b);N_GUARD::S(L)
- S(b);N_GUARD::S(L),XS(b)
- P(c);N_GUARD::P(E)
- P(f);N_GUARD::R1(A)
- Refutation
- B(h);CHECK,XR(I)
- Try
- P(H);XS(g)
- Threat
- QAB1(N),XR(e)
- Vars
- S(b);N_GUARD,XP(H)::S(L)
- S(b);N_GUARD::S(L)
- S(b);N_GUARD::S(L),XS(b)
- Refutation
- B(h);CHECK,XP(H)
- Try
- Actual
- R(I);
- Vars
- B(h);OGATE,XP(J)::QAB(N),XB(i)
- B(i);SBLOCK::B(K)
- B(h);OGATE::QAB(N),XB(i)
- B(i);N_GUARD::B(K),XB(i)
- S(b);N_GUARD::S(L)
- S(b);N_GUARD::S(L),XS(b)
- S(g);OGATE::QAB(N)
- P(c);N_GUARD::P(E)
- P(f);N_GUARD::R1(A)
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