MESON Chess Problem Database
Problem Display
PID: 132445 (b1K1n3/1n2pP2/1B1k1PqN/4R1p1/1N1P2P1/3P4/8/8 w - - 0 1)
Barry, Henry William
Chess Bulletin, 1910
#2
10 + 7
| 1829 | The Theory of Pawn Promotion | 1912 |
SOLUTION
- SOUND
- Sets
- 1...Qxd3
- 2.fxe8S#
- 1...Qe4
- 2.fxe8S#
- 1...Qf5+
- 2.Sxf5#
- 1...Qh5
- 2.Sf5#
- 1...Qxf7
- 2.Sf5#
- 2.Sxf7#
- 1...Qh7
- 2.fxe8S#
- 1...Qxf6
- 2.fxe8S#
- 1...Qxh6
- 2.fxe8S#
- 1...Qg7
- 2.Sf5#
- 2.fxe8S#
- 1...Qg8
- 2.Sf5#
- 1...Sa5
- 2.Bc5#
- 1...Sc5
- 2.Bxc5#
- 1...Sd8
- 2.Bc5#
- 1...Sxf6
- 2.Bc7#
- 1...Sc7
- 2.Bxc7#
- 1...Sg7
- 2.Bc7#
- 1...exf6
- 2.f8Q#
- 2.f8B#
- 1...e6
- 2.f8Q#
- 2.f8B#
- 1...Qxd3
- Tries
- 1.Ba7?
- 1...Qf5+
- 2.Sxf5#
- 1...Qxd3
- 2.fxe8S#
- 1...Qxf7
- 2.Sf5#
- 2.Sxf7#
- 1...Qxf6
- 2.fxe8S#
- 1...Qxh6
- 2.fxe8S#
- 1...Sxf6
- 2.Bb8#
- 1...exf6
- 2.f8Q#
- 2.f8B#
- 1...Qe4
- 2.fxe8S#
- 1...Qh5
- 2.Sf5#
- 1...Qh7
- 2.fxe8S#
- 1...Qg7
- 2.Sf5#
- 2.fxe8S#
- 1...Qg8
- 2.Sf5#
- 1...Sa5
- 2.Bc5#
- 1...Sc5
- 2.Bxc5#
- 1...Sd8
- 2.Bc5#
- 1...Sg7
- 2.Bb8#
- 1...e6
- 2.f8Q#
- 2.f8B#
- 1...Sc7!
- 1...Qf5+
- 1.Bd8?
- threat
- 2.Bxe7#
- 1...Qf5+
- 2.Sxf5#
- 1...Qxf7
- 2.Sf5#
- 2.Sxf7#
- 1...Qxf6
- 2.fxe8S#
- 1...exf6
- 2.Be7#
- 2.f8Q#
- 2.f8B#
- 1...e6
- 2.Be7#
- 2.f8Q#
- 2.f8B#
- 1...Sxd8!
- threat
- 1.fxe7?
- 1...Qf5+
- 2.Sxf5#
- 1...Qxd3
- 2.fxe8S#
- 1...Qxf7
- 2.Sxf7#
- 1...Qxh6
- 2.fxe8S#
- 1...Qe4
- 2.fxe8S#
- 1...Qh5
- 2.Sf5#
- 1...Qh7
- 2.fxe8S#
- 1...Qf6
- 2.fxe8S#
- 1...Qg7
- 2.Sf5#
- 2.fxe8S#
- 1...Qg8
- 2.Sf5#
- 1...Sa5
- 2.Bc5#
- 1...Sc5
- 2.Bxc5#
- 1...Sd8
- 2.Bc5#
- 2.exd8Q#
- 2.exd8R#
- 1...Sf6
- 2.Bc7#
- 1...Sc7
- 2.Bxc7#
- 1...Sg7
- 2.Bc7#
- 1...Qe6+!
- 1...Qf5+
- 1.fxe8Q?
- threat
- 2.Bc7#
- 2.Qc6#
- 2.Qd7#
- 2.Qxe7#
- 1...Qf5+
- 2.Sxf5#
- 1...Qxf6
- 2.Bc7#
- 2.Qc6#
- 2.Qd7#
- 1...exf6
- 2.Bc7#
- 2.Rd5#
- 2.Re6#
- 2.Qc6#
- 2.Qd7#
- 2.Qe6#
- 2.Qe7#
- 2.Qf8#
- 1...Qe4
- 2.Sf7#
- 2.Bc7#
- 2.Qd7#
- 2.Qxe7#
- 1...Qf7
- 2.Sf5#
- 2.Sxf7#
- 2.Bc7#
- 2.Qc6#
- 2.Qd7#
- 1...Qh7
- 2.Bc7#
- 2.Qc6#
- 2.Qd7#
- 1...Qg7
- 2.Sf5#
- 2.Bc7#
- 2.Qc6#
- 2.Qd7#
- 1...Qg8
- 2.Sf5#
- 2.Bc7#
- 1...Sa5
- 2.Bc5#
- 2.Bc7#
- 2.Qd7#
- 2.Qxe7#
- 2.Qd8#
- 1...Sc5
- 2.Bxc5#
- 2.Bc7#
- 2.Qxe7#
- 1...Sd8
- 2.Bc5#
- 2.Bc7#
- 2.Qd7#
- 2.Qxe7#
- 2.Qxd8#
- 1...e6
- 2.Bc7#
- 2.Rxe6#
- 2.Qc6#
- 2.Qd7#
- 2.Qxe6#
- 2.Qe7#
- 2.Qf8#
- 1...Qxe8+!
- threat
- 1.fxe8B?
- threat
- 2.Bc7#
- 1...Qf5+
- 2.Sxf5#
- 1...Qxe8+!
- threat
- 1.fxe8R?
- threat
- 2.Bc7#
- 1...Qf5+
- 2.Sxf5#
- 1...Qxe8+!
- threat
- 1.Ba7?
- Keys
- 1.f8S!
- threat
- 2.Rd5#
- 2.Re6#
- 1...Qf5+
- 2.Sxf5#
- 1...Qxf6
- 2.Rd5#
- 1...Sxf6
- 2.Bc7#
- 2.Re6#
- 1...exf6
- 2.Re6#
- 1...Qe4
- 2.Sf7#
- 1...Qf7
- 2.Sf5#
- 2.Sxf7#
- 1...Qg8
- 2.Sf5#
- 1...Sa5
- 2.Bc5#
- 2.Re6#
- 1...Sc5
- 2.Bxc5#
- 1...Sd8
- 2.Bc5#
- 1...Sc7
- 2.Bxc7#
- 1...Sg7
- 2.Bc7#
- 2.Rd5#
- 1...e6
- 2.Rxe6#
- threat
- 1.f8S!
FEATURES
- Static
- TYPE = BLOCK_THREAT
- CHANGED MATES = 2
- ADDED MATES = 2
- REMOVED MATES = 7
- Sets
- Q(c);N_GUARD,XP(A)::PXS(g)=S
- Q(c);N_GUARD::PXS(g)=S
- Q(c);CHECK,N_GUARD::S(H),XQ(c)
- Q(c);N_GUARD::S(H)
- Q(c);N_GUARD,XP(G)::PXS(g)=S
- Q(c);N_GUARD,XS(H)::PXS(g)=S
- S(d);N_GUARD::B(F)
- S(d);N_GUARD::B(F),XS(d)
- S(g);N_GUARD,XP(G)::B(F)
- S(g);N_GUARD::B(F),XS(g)
- S(g);N_GUARD::B(F)
- P(e);XP(G)::P=Q
- P(e);::P=Q
- Tries
- Try
- B(F);
- Vars
- Q(c);CHECK,N_GUARD::S(H),XQ(c)
- Q(c);N_GUARD,XP(A)::PXS(g)=S
- Q(c);N_GUARD,XP(G)::PXS(g)=S
- Q(c);N_GUARD,XS(H)::PXS(g)=S
- S(g);N_GUARD,XP(G)::B(F)
- P(e);XP(G)::P=Q
- Q(c);N_GUARD::PXS(g)=S
- Q(c);N_GUARD::S(H)
- S(d);N_GUARD::B(F)
- S(d);N_GUARD::B(F),XS(d)
- S(g);N_GUARD::B(F)
- P(e);::P=Q
- Refutation
- S(g);
- Try
- B(F);
- Threat
- B(F),XP(e)
- Vars
- Q(c);CHECK,N_GUARD::S(H),XQ(c)
- Q(c);N_GUARD,XP(G)::PXS(g)=S
- Refutation
- S(d);XB(F)
- Try
- P(G);XP(e)
- Vars
- Q(c);CHECK,N_GUARD::S(H),XQ(c)
- Q(c);N_GUARD,XP(A)::PXS(g)=S
- Q(c);XP(I)::S(H),XQ(c)
- Q(c);N_GUARD,XS(H)::PXS(g)=S
- Q(c);N_GUARD::PXS(g)=S
- Q(c);N_GUARD::S(H)
- S(d);N_GUARD::B(F)
- S(d);N_GUARD::B(F),XS(d)
- S(g);N_GUARD::B(F)
- S(g);N_GUARD::B(F),XS(g)
- Refutation
- Q(c);CHECK
- Try
- P(I);XS(g)
- Threat
- DUALS(4)
- Vars
- Q(c);CHECK,N_GUARD::S(H),XQ(c)
- Refutation
- Q(c);CHECK,XQ(I)
- Try
- P(I);XS(g)
- Threat
- B(F)
- Vars
- Q(c);CHECK,N_GUARD::S(H),XQ(c)
- Refutation
- Q(c);CHECK,XB(I)
- Try
- P(I);XS(g)
- Threat
- B(F)
- Vars
- Q(c);CHECK,N_GUARD::S(H),XQ(c)
- Refutation
- Q(c);CHECK,XR(I)
- Try
- Actual
- P(I);
- Threat
- DUALS(2)
- Vars
- Q(c);CHECK,N_GUARD::S(H),XQ(c)
- Q(c);XP(G)::R1(E)
- P(e);XP(G)::R1(E)
- Q(c);N_GUARD::S(H)
- S(d);N_GUARD::B(F),XS(d)
- S(d);N_GUARD::B(F)
- S(g);N_GUARD::B(F),XS(g)
- P(e);::R1(E),XP(e)
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