MESON Chess Problem Database
Problem Display
PID: 203799 (RB6/KPn2BRP/8/1p6/1P6/1P6/7P/7k w - - 0 1)
Ling, John Francis
The Problemist, 1954
#2
10 + 3
SOLUTION
- SOUND
- Sets
- 1...Kxh2
- 2.h8Q#
- 2.h8R#
- 1...Sd5
- 2.Bxd5#
- 1...Sa6
- 2.Bd5#
- 1...Sxa8
- 2.Bd5#
- 2.bxa8Q#
- 2.bxa8B#
- 1...Se8
- 2.Bd5#
- 1...Kxh2
- Tries
- 1.Bc4?
- 1...Kxh2
- 2.h8Q#
- 2.h8R#
- 1...Sxa8
- 2.Bd5#
- 2.bxa8Q#
- 2.bxa8B#
- 1...Sd5
- 2.Bxd5#
- 1...Sa6
- 2.Bd5#
- 1...Se6
- 2.Bd5#
- 1...Se8
- 2.Bd5#
- 1...bxc4!
- 1...Kxh2
- 1.Bd5+?
- 1...Kxh2
- 2.h8Q#
- 2.h8R#
- 1...Sxd5!
- 1...Kxh2
- 1.Bh5?
- 1...Sxa8
- 2.Bf3#
- 2.bxa8Q#
- 2.bxa8B#
- 1...Sd5
- 2.Bf3#
- 1...Sa6
- 2.Bf3#
- 1...Se6
- 2.Bf3#
- 1...Se8
- 2.Bf3#
- 1...Kxh2!
- 1...Sxa8
- 1.Be6?
- 1...Kxh2
- 2.h8Q#
- 2.h8R#
- 1...Sxa8
- 2.Bd5#
- 2.bxa8Q#
- 2.bxa8B#
- 1...Sd5
- 2.Bxd5#
- 1...Sa6
- 2.Bd5#
- 1...Se8
- 2.Bd5#
- 1...Sxe6!
- 1...Kxh2
- 1.Bg8?
- 1...Kxh2
- 2.h8Q#
- 2.h8R#
- 1...Sxa8
- 2.Bd5#
- 2.bxa8Q#
- 2.bxa8B#
- 1...Sd5
- 2.Bxd5#
- 1...Sa6
- 2.Bd5#
- 1...Se8
- 2.Bd5#
- 1...Se6!
- 1...Kxh2
- 1.Rg4?
- 1...Kxh2
- 2.h8Q#
- 2.h8R#
- 1...Sxa8
- 2.Bd5#
- 2.bxa8Q#
- 2.bxa8B#
- 1...Sd5
- 2.Bxd5#
- 1...Sa6
- 2.Bd5#
- 1...Se8
- 2.Bd5#
- 1...Se6!
- 1...Kxh2
- 1.Rg5?
- 1...Kxh2
- 2.h8Q#
- 2.h8R#
- 1...Sxa8
- 2.Bd5#
- 2.bxa8Q#
- 2.bxa8B#
- 1...Sd5
- 2.Bxd5#
- 1...Sa6
- 2.Bd5#
- 1...Se8
- 2.Bd5#
- 1...Se6!
- 1...Kxh2
- 1.Rg6?
- 1...Kxh2
- 2.h8Q#
- 2.h8R#
- 1...Sxa8
- 2.Bd5#
- 2.bxa8Q#
- 2.bxa8B#
- 1...Sd5
- 2.Bxd5#
- 1...Sa6
- 2.Bd5#
- 1...Se8
- 2.Bd5#
- 1...Se6!
- 1...Kxh2
- 1.Rg8?
- 1...Kxh2
- 2.h8Q#
- 2.h8R#
- 1...Sxa8
- 2.Bd5#
- 2.bxa8Q#
- 2.bxa8B#
- 1...Sd5
- 2.Bxd5#
- 1...Sa6
- 2.Bd5#
- 1...Se8
- 2.Bd5#
- 1...Se6!
- 1...Kxh2
- 1.h8Q?
- 1...Sxa8
- 2.Bd5#
- 2.bxa8Q#
- 2.bxa8B#
- 1...Sd5
- 2.Bxd5#
- 1...Sa6
- 2.Bd5#
- 1...Se8
- 2.Bd5#
- 1...Se6!
- 1...Sxa8
- 1.h8R?
- 1...Sxa8
- 2.Bd5#
- 2.bxa8Q#
- 2.bxa8B#
- 1...Sd5
- 2.Bxd5#
- 1...Sa6
- 2.Bd5#
- 1...Se8
- 2.Bd5#
- 1...Se6!
- 1...Sxa8
- 1.Bc4?
- Keys
- 1.Kb6!
- 1...Sd5+
- 2.Bxd5#
- 1...Sxa8+
- 2.bxa8Q#
- 2.bxa8B#
- 1...Kxh2
- 2.h8Q#
- 2.h8R#
- 1...Sa6
- 2.Bd5#
- 1...Se6
- 2.Ra1#
- 1...Se8
- 2.Bd5#
- 2.Ra1#
- 1...Sd5+
- 1.Kb6!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 1
- Sets
- K(a);P-FLIGHT,P_SPINS(c),XP(A)::P=Q
- S(c);N_GUARD::B(F),XS(c)
- S(c);N_GUARD::B(F)
- Tries
- Try
- B(F);
- Vars
- K(a);P-FLIGHT,P_SPINS(c),XP(A)::P=Q
- S(c);N_GUARD::B(F),XS(c)
- S(c);N_GUARD::B(F)
- Refutation
- P(b);XB(F)
- Try
- B(F);CHECK
- Vars
- K(a);P-FLIGHT,P_SPINS(c),XP(A)::P=Q
- Refutation
- S(c);XB(F)
- Try
- B(F);
- Vars
- S(c);::B(F)
- Refutation
- K(a);P-FLIGHT,P_SPINS(c),XP(A)
- Try
- B(F);
- Vars
- K(a);P-FLIGHT,P_SPINS(c),XP(A)::P=Q
- S(c);N_GUARD::B(F),XS(c)
- S(c);N_GUARD::B(F)
- Refutation
- S(c);XB(F)
- Try
- B(F);
- Vars
- K(a);P-FLIGHT,P_SPINS(c),XP(A)::P=Q
- S(c);N_GUARD::B(F),XS(c)
- S(c);N_GUARD::B(F)
- Refutation
- S(c);
- Try
- R(G);
- Vars
- K(a);P-FLIGHT,P_SPINS(c),XP(A)::P=Q
- S(c);N_GUARD::B(F),XS(c)
- S(c);N_GUARD::B(F)
- Refutation
- S(c);
- Try
- R(G);
- Vars
- K(a);P-FLIGHT,P_SPINS(c),XP(A)::P=Q
- S(c);N_GUARD::B(F),XS(c)
- S(c);N_GUARD::B(F)
- Refutation
- S(c);
- Try
- R(G);
- Vars
- K(a);P-FLIGHT,P_SPINS(c),XP(A)::P=Q
- S(c);N_GUARD::B(F),XS(c)
- S(c);N_GUARD::B(F)
- Refutation
- S(c);
- Try
- R(G);
- Vars
- K(a);P-FLIGHT,P_SPINS(c),XP(A)::P=Q
- S(c);N_GUARD::B(F),XS(c)
- S(c);N_GUARD::B(F)
- Refutation
- S(c);
- Try
- P(H);
- Vars
- S(c);N_GUARD::B(F),XS(c)
- S(c);N_GUARD::B(F)
- Refutation
- S(c);
- Try
- P(H);
- Vars
- S(c);N_GUARD::B(F),XS(c)
- S(c);N_GUARD::B(F)
- Refutation
- S(c);
- Try
- Actual
- K(D);S_FLIGHT
- Vars
- S(c);CHECK,N_GUARD::B(F),XS(c)
- S(c);CHECK,OGATE,XR(I)::PXS(c)=Q
- K(a);P-FLIGHT,P_SPINS(c),XP(A)::P=Q
- S(c);N_GUARD::B(F)
- S(c);::R(I)
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