MESON Chess Problem Database
Problem Display
PID: 4915 (3N4/3npR2/3P2B1/2P1k3/2p4r/2p3Pp/R1K4N/3Q2n1 w - - 0 1)
Blake, Percy Francis
The Times Weekly Edition, 1893
#2
10 + 8
SOLUTION
- SOUND
- Sets
- 1...Rd4
- 2.Qh5#
- 1...Re4
- 2.Rf5#
- 1...Rf4
- 2.gxf4#
- 1...Rg4
- 2.Sxg4#
- 1...Rh5
- 2.Sg4#
- 1...Rh6
- 2.Sg4#
- 1...Rh7
- 2.Sg4#
- 1...Rh8
- 2.Sg4#
- 1...Se2
- 2.Sf3#
- 1...Sf3
- 2.Sxf3#
- 1...Sf6
- 2.Rxe7#
- 1...exd6
- 2.Qxd6#
- 1...e6
- 2.Sc6#
- 1...Rd4
- Tries
- 1.Rf4?
- threat
- 2.Qd4#
- 1...Se2
- 2.Sf3#
- 1...Sf3
- 2.Sxf3#
- 1...Rxf4!
- threat
- 1.Qd3?
- threat
- 2.Rf5#
- 1...Rf4
- 2.gxf4#
- 1...Rh5
- 2.Sg4#
- 2.Qe4#
- 1...Sf6
- 2.Rxe7#
- 1...e6
- 2.Sc6#
- 1...cxd3+!
- threat
- 1.dxe7?
- threat
- 2.Qd6#
- 2.e8Q#
- 2.e8R#
- 1...Rd4
- 2.Qh5#
- 1...Sb6
- 2.Qd6#
- 2.e8Q#
- 2.e8R#
- 1...Re4
- 2.Rf5#
- 2.Qd6#
- 2.e8Q#
- 2.e8R#
- 1...Rf4
- 2.Qd6#
- 2.gxf4#
- 2.e8Q#
- 2.e8R#
- 1...Rg4
- 2.Sxg4#
- 2.Qd6#
- 2.e8Q#
- 2.e8R#
- 1...Rh5
- 2.Sg4#
- 2.Qd6#
- 2.e8Q#
- 2.e8R#
- 1...Rh6
- 2.Sg4#
- 2.Qd6#
- 2.e8Q#
- 2.e8R#
- 1...Rh7
- 2.Sg4#
- 2.Qd6#
- 2.e8Q#
- 2.e8R#
- 1...Rh8
- 2.Sg4#
- 2.Qd6#
- 1...Se2
- 2.Sf3#
- 2.Qd6#
- 2.e8Q#
- 2.e8R#
- 1...Sf3
- 2.Sxf3#
- 2.Qd6#
- 2.e8Q#
- 2.e8R#
- 1...Sf6
- 2.Qd6#
- 1...Sb8
- 2.Qd6#
- 2.e8Q#
- 2.e8R#
- 1...Sf8
- 2.Qd6#
- 1...Sxc5!
- threat
- 1.Rf4?
- Keys
- 1.Ra5!
- 1...Sxc5
- 2.Rxc5#
- 1...exd6
- 2.Qxd6#
- 1...Rd4
- 2.Qh5#
- 1...Sb6
- 2.cxb6#
- 1...Re4
- 2.Rf5#
- 1...Rf4
- 2.gxf4#
- 1...Rg4
- 2.Sxg4#
- 1...Rh5
- 2.Sg4#
- 1...Rh6
- 2.Sg4#
- 1...Rh7
- 2.Sg4#
- 1...Rh8
- 2.Sg4#
- 1...Se2
- 2.Sf3#
- 1...Sf3
- 2.Sxf3#
- 1...Sf6
- 2.Rxe7#
- 1...Sb8
- 2.c6#
- 1...Sf8
- 2.c6#
- 1...e6
- 2.Sc6#
- 1...Sxc5
- 1.Ra5!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 0
- Sets
- R(e);N_GUARD,SBLOCK::QAR(A)
- R(e);SBLOCK::R1(I)
- R(e);OGATE::P(E),XR(e)
- R(e);N_GUARD::S(D),XR(e)
- R(e);N_GUARD::S(D)
- S(a);N_GUARD::S(D)
- S(a);N_GUARD::S(D),XS(a)
- S(g);SBLOCK::R(I),XP(h)
- P(h);OGATE,XP(G)::QAB1(A),XP(h)
- P(h);SBLOCK::S(J)
- Tries
- Try
- R(I);
- Threat
- QAB1(A)
- Vars
- S(a);N_GUARD::S(D)
- S(a);N_GUARD::S(D),XS(a)
- Refutation
- R(e);XR(I)
- Try
- Q(A);
- Threat
- R1(I)
- Vars
- R(e);OGATE::P(E),XR(e)
- S(g);SBLOCK::R(I),XP(h)
- P(h);SBLOCK::S(J)
- Refutation
- P(d);CHECK,XQ(A)
- Try
- P(G);XP(h)
- Threat
- DUALS(3)
- Vars
- R(e);N_GUARD,SBLOCK::QAR(A)
- S(g);::QAB1(A)
- Refutation
- S(g);XP(F)
- Try
- Actual
- R(B);
- Vars
- S(g);OGATE,P_SPINS(g),XP(F)::R(B),XS(g)
- P(h);OGATE,XP(G)::QAB1(A),XP(h)
- R(e);N_GUARD,SBLOCK::QAR(A)
- S(g);OGATE::R(B)+P(F),XS(g)
- R(e);SBLOCK::R1(I)
- R(e);OGATE::P(E),XR(e)
- R(e);N_GUARD::S(D),XR(e)
- R(e);N_GUARD::S(D)
- S(a);N_GUARD::S(D)
- S(a);N_GUARD::S(D),XS(a)
- S(g);SBLOCK::R(I),XP(h)
- S(g);N_GUARD::R(B)+P(F)
- P(h);SBLOCK::S(J)
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