MESON Chess Problem Database
Problem Display
PID: 151976 (k1r5/1pPB2Q1/1PN1R3/3N4/3b4/2p4R/6K1/8 w - - 0 1)
Proctor, C
Good Companions (January), 1915
#2
9 + 5
SOLUTION
- SOUND
- Sets
- 1...Rxc7
- 2.Sxc7#
- 1...Rb8
- 2.cxb8Q#
- 2.cxb8R#
- 1...Rd8
- 2.cxd8Q#
- 2.cxd8R#
- 1...Re8
- 2.Rxe8#
- 1...Rf8
- 2.Qxf8#
- 1...Rg8
- 2.Qxg8#
- 1...Rh8
- 2.Rxh8#
- 1...Bxb6
- 2.Sxb6#
- 1...c2
- 2.Ra3#
- 1...bxc6
- 2.Bxc6#
- 1...Rxc7
- Tries
- 1.Rh4?
- 1...Rxc7
- 2.Sxc7#
- 1...Bxb6
- 2.Sxb6#
- 1...Bxg7
- 2.Ra4#
- 1...bxc6
- 2.Bxc6#
- 1...Bg1
- 2.Ra4#
- 1...Rb8
- 2.cxb8Q#
- 2.cxb8R#
- 1...Rd8
- 2.cxd8Q#
- 2.cxd8R#
- 1...Re8
- 2.Rxe8#
- 1...Rf8
- 2.Qxf8#
- 1...Rg8
- 2.Qxg8#
- 1...Rh8
- 2.Rxh8#
- 1...Bf2
- 2.Ra4#
- 1...Be3
- 2.Ra4#
- 1...Bc5
- 2.Ra4#
- 1...Be5
- 2.Ra4#
- 1...Bf6
- 2.Ra4#
- 1...c2!
- 1...Rxc7
- 1.Rh8?
- threat
- 2.Rxc8#
- 1...bxc6
- 2.Bxc6#
- 1...Rb8
- 2.Rxb8#
- 2.cxb8Q#
- 2.cxb8R#
- 1...Rd8
- 2.Rxd8#
- 2.cxd8Q#
- 2.cxd8R#
- 1...Re8
- 2.Rexe8#
- 2.Rhxe8#
- 1...Rf8
- 2.Rxf8#
- 2.Qxf8#
- 1...Rg8
- 2.Rxg8#
- 2.Qxg8#
- 1...Rxh8!
- threat
- 1.Re1?
- threat
- 2.Ra1#
- 1...Bxb6
- 2.Sxb6#
- 1...bxc6
- 2.Bxc6#
- 1...c2
- 2.Ra3#
- 1...Bc5!
- threat
- 1.Re2?
- threat
- 2.Ra2#
- 1...Bxb6
- 2.Sxb6#
- 1...bxc6
- 2.Bxc6#
- 1...c2
- 2.Ra3#
- 1...Bc5!
- threat
- 1.Re8?
- threat
- 2.Rxc8#
- 1...bxc6
- 2.Bxc6#
- 1...Rb8
- 2.Rxb8#
- 2.cxb8Q#
- 2.cxb8R#
- 1...Rd8
- 2.Rxd8#
- 2.cxd8Q#
- 2.cxd8R#
- 1...Rxe8!
- threat
- 1.Qxd4?
- threat
- 2.Qa4#
- 1...bxc6
- 2.Bxc6#
- 1...Rg8+!
- threat
- 1.Qf8?
- threat
- 2.Qa3#
- 2.Qxc8#
- 1...Bxb6
- 2.Sxb6#
- 2.Qxc8#
- 1...bxc6
- 2.Bxc6#
- 2.Qxc8#
- 1...Rb8
- 2.Qa3#
- 2.Qxb8#
- 2.cxb8Q#
- 2.cxb8R#
- 1...Rd8
- 2.Qa3#
- 2.Qxd8#
- 2.cxd8Q#
- 2.cxd8R#
- 1...Re8
- 2.Rxe8#
- 2.Qa3#
- 2.Qxe8#
- 1...Bc5
- 2.Qxc8#
- 1...Rxf8!
- threat
- 1.Qg8?
- threat
- 2.Qxc8#
- 1...Rb8
- 2.Qxb8#
- 2.cxb8Q#
- 2.cxb8R#
- 1...Rd8
- 2.Qxd8#
- 2.cxd8Q#
- 2.cxd8R#
- 1...Re8
- 2.Rxe8#
- 2.Qxe8#
- 1...Rf8
- 2.Qxf8#
- 1...Rxg8+!
- threat
- 1.Rh4?
- Keys
- 1.Re4!
- 1...Rxc7
- 2.Sxc7#
- 1...Bxb6
- 2.Sxb6#
- 1...Bxg7
- 2.Ra4#
- 1...bxc6
- 2.Bxc6#
- 1...Bg1
- 2.Ra4#
- 1...Rb8
- 2.cxb8Q#
- 2.cxb8R#
- 1...Rd8
- 2.cxd8Q#
- 2.cxd8R#
- 1...Re8
- 2.Rxe8#
- 1...Rf8
- 2.Qxf8#
- 1...Rg8
- 2.Qxg8#
- 1...Rh8
- 2.Rxh8#
- 1...Bf2
- 2.Ra4#
- 1...Be3
- 2.Ra4#
- 1...Bc5
- 2.Ra4#
- 1...Be5
- 2.Ra4#
- 1...Bf6
- 2.Ra4#
- 1...c2
- 2.Ra3#
- 1...Rxc7
- 1.Re4!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 7
- REMOVED MATES = 0
- Sets
- R(e);XP(G)::S(C),XR(e)
- R(e);OGATE::PXR(e)=Q
- R(e);OGATEB::R(F),XR(e)
- R(e);OGATEB::QAR(I),XR(e)
- R(e);OGATEB,P_PINQ(I)::QAR(I),XR(e)
- R(e);OGATEB::R(B),XR(e)
- B(b);XP(D)::S(C),XB(b)
- P(a);OGATE::R(B)
- P(c);OGATE,XS(E)::B(H),XP(c)
- Tries
- Try
- R(B);
- Vars
- R(e);XP(G)::S(C),XR(e)
- B(b);XP(D)::S(C),XB(b)
- B(b);OGATE,XQ(I)::R(B)
- P(c);OGATE,XS(E)::B(H),XP(c)
- B(b);OGATE::R(B)
- R(e);OGATE::PXR(e)=Q
- R(e);OGATEB::R(F),XR(e)
- R(e);OGATEB::QAR(I),XR(e)
- R(e);OGATEB,P_PINQ(I)::QAR(I),XR(e)
- R(e);OGATEB::R(B),XR(e)
- Refutation
- P(a);
- Try
- R(B);P_PINR(e)
- Threat
- R(B),XR(e)
- Vars
- P(c);OGATE,XS(E)::B(H),XP(c)
- Refutation
- R(e);N_SPINR(e),XR(B)
- Try
- R(F);
- Threat
- R(F)
- Vars
- B(b);XP(D)::S(C),XB(b)
- P(c);OGATE,XS(E)::B(H),XP(c)
- P(a);OGATE::R(B)
- Refutation
- B(b);
- Try
- R(F);
- Threat
- R(F)
- Vars
- B(b);XP(D)::S(C),XB(b)
- P(c);OGATE,XS(E)::B(H),XP(c)
- P(a);OGATE::R(B)
- Refutation
- B(b);
- Try
- R(F);P_PINR(e)
- Threat
- R(F),XR(e)
- Vars
- P(c);OGATE,XS(E)::B(H),XP(c)
- Refutation
- R(e);N_SPINR(e),XR(F)
- Try
- Q(I);XB(b)
- Threat
- QAR(I)
- Vars
- P(c);OGATE,XS(E)::B(H),XP(c)
- Refutation
- R(e);CHECK
- Try
- Q(I);P_PINR(e)
- Threat
- DUALS(2)
- Vars
- B(b);::QAR2(I),XR(e)
- Refutation
- R(e);N_SPINR(e),XQ(I)
- Try
- Q(I);P_PINR(e)
- Threat
- QAR2(I),XR(e)
- Vars
- R(e);OGATEB::QAR(I),XR(e)
- Refutation
- R(e);CHECK,N_SPINR(e),XQ(I)
- Try
- Actual
- R(F);
- Vars
- R(e);XP(G)::S(C),XR(e)
- B(b);XP(D)::S(C),XB(b)
- B(b);OGATE,XQ(I)::R(F)
- P(c);OGATE,XS(E)::B(H),XP(c)
- B(b);OGATE::R(F)
- R(e);OGATE::PXR(e)=Q
- R(e);OGATEB::R(F),XR(e)
- R(e);OGATEB::QAR(I),XR(e)
- R(e);OGATEB,P_PINQ(I)::QAR(I),XR(e)
- R(e);OGATEB::R(B),XR(e)
- P(a);OGATE::R(B)
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