MESON Chess Problem Database
Problem Display
PID: 2603 (3K1R2/5B1n/2p1N1n1/2p2k2/2P3N1/4RPP1/8/1bbQ4 w - - 0 1)
Perry, William E
Source?, 0000
#2
10 + 7
SOLUTION
- SOUND
- Sets
- 1...Ba2
- 2.Qc2#
- 2.Qd3#
- 1...Bc2
- 2.Qxc2#
- 1...Bd3
- 2.Qxd3#
- 1...Be4
- 2.fxe4#
- 1...Bb2
- 2.Qxb1#
- 1...Bd2
- 2.Qxb1#
- 1...Ba3
- 2.Qxb1#
- 1...Bxe3
- 2.Qxb1#
- 1...Sf4
- 2.Re5#
- 1...Sh4
- 2.Re5#
- 1...Se5
- 2.Rxe5#
- 1...Se7
- 2.Re5#
- 1...Sgxf8
- 2.Re5#
- 1...Sh8
- 2.Re5#
- 1...Sg5
- 2.Sg7#
- 1...Sf6
- 2.Sh6#
- 1...Ba2
- Tries
- 1.Kc7?
- 1...Bxe3
- 2.Qxb1#
- 1...Sgxf8
- 2.Re5#
- 1...Ba2
- 2.Qc2#
- 2.Qd3#
- 1...Bc2
- 2.Qxc2#
- 1...Bd3
- 2.Qxd3#
- 1...Be4
- 2.fxe4#
- 1...Bb2
- 2.Qxb1#
- 1...Bd2
- 2.Qxb1#
- 1...Ba3
- 2.Qxb1#
- 1...Sf4
- 2.Re5#
- 1...Sh4
- 2.Re5#
- 1...Se5
- 2.Rxe5#
- 1...Se7
- 2.Re5#
- 1...Sh8
- 2.Re5#
- 1...Sg5
- 2.Sg7#
- 1...Sf6
- 2.Sh6#
- 1...Shxf8!
- 1...Bxe3
- 1.Be8+?
- 1...Sgxf8
- 2.Re5#
- 1...Sf6
- 2.Sh6#
- 2.Rxf6#
- 1...Shxf8!
- 1...Sgxf8
- 1.Re8?
- 1...Bxe3
- 2.Qxb1#
- 1...Ba2
- 2.Qc2#
- 2.Qd3#
- 1...Bc2
- 2.Qxc2#
- 1...Bd3
- 2.Qxd3#
- 1...Be4
- 2.fxe4#
- 1...Bb2
- 2.Qxb1#
- 1...Bd2
- 2.Qxb1#
- 1...Ba3
- 2.Qxb1#
- 1...Sf4
- 2.Re5#
- 1...Sh4
- 2.Re5#
- 1...Se5
- 2.Rxe5#
- 1...Se7
- 2.Re5#
- 1...Sgf8
- 2.Re5#
- 1...Sh8
- 2.Re5#
- 1...Sg5
- 2.Sg7#
- 1...Sf6
- 2.Sh6#
- 1...Shf8!
- 1...Bxe3
- 1.Rg8?
- threat
- 2.Bxg6#
- 1...Bxe3
- 2.Qxb1#
- 1...Be4
- 2.fxe4#
- 1...Sf4
- 2.Re5#
- 1...Sh4
- 2.Re5#
- 1...Se5
- 2.Rxe5#
- 1...Se7
- 2.Re5#
- 1...Sgf8
- 2.Re5#
- 1...Sh8
- 2.Re5#
- 1...Shf8!
- threat
- 1.Qd4?
- threat
- 2.Sh6#
- 1...Bxe3
- 2.Sxe3#
- 1...Se5
- 2.Rxe5#
- 2.Qxe5#
- 2.Qf4#
- 1...cxd4!
- threat
- 1.Qd5+?
- 1...Se5
- 2.Rxe5#
- 2.Qxe5#
- 1...cxd5!
- 1...Se5
- 1.Kc7?
- Keys
- 1.Rh8!
- 1...Bxe3
- 2.Qxb1#
- 1...Sxh8
- 2.Re5#
- 1...Shf8
- 2.Rh5#
- 1...Ba2
- 2.Qc2#
- 2.Qd3#
- 1...Bc2
- 2.Qxc2#
- 1...Bd3
- 2.Qxd3#
- 1...Be4
- 2.fxe4#
- 1...Bb2
- 2.Qxb1#
- 1...Bd2
- 2.Qxb1#
- 1...Ba3
- 2.Qxb1#
- 1...Sf4
- 2.Re5#
- 1...Sh4
- 2.Re5#
- 1...Se5
- 2.Rxe5#
- 1...Se7
- 2.Re5#
- 1...Sgf8
- 2.Re5#
- 1...Sg5
- 2.Sg7#
- 1...Sf6
- 2.Sh6#
- 1...Bxe3
- 1.Rh8!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- B(a);N_GUARD::QAB(A),XB(a)
- B(a);OGATE::P(C),XB(a)
- B(b);OGATE::QAB(A),XB(a)
- B(b);OGATE,XR(B)::QAB(A),XB(a)
- S(f);N_GUARD::R1(B)
- S(f);N_GUARD::R1(B),XS(f)
- S(f);N_GUARD,XR(J)::R1(B)
- S(g);SBLOCK::S(G)
- S(g);SBLOCK::S(F)
- Tries
- Try
- K(I);S_FLIGHT
- Vars
- B(b);OGATE,XR(B)::QAB(A),XB(a)
- S(f);N_GUARD,XR(J)::R1(B)
- B(a);N_GUARD::QAB(A),XB(a)
- B(a);OGATE::P(C),XB(a)
- B(b);OGATE::QAB(A),XB(a)
- S(f);N_GUARD::R1(B)
- S(f);N_GUARD::R1(B),XS(f)
- S(g);SBLOCK::S(G)
- S(g);SBLOCK::S(F)
- Refutation
- S(g);XR(J)
- Try
- B(H);CHECK
- Vars
- S(f);XR(J)::R1(B)
- Refutation
- S(g);XR(J)
- Try
- R(J);
- Vars
- B(b);OGATE,XR(B)::QAB(A),XB(a)
- B(a);N_GUARD::QAB(A),XB(a)
- B(a);OGATE::P(C),XB(a)
- B(b);OGATE::QAB(A),XB(a)
- S(f);N_GUARD::R1(B)
- S(f);N_GUARD::R1(B),XS(f)
- S(g);SBLOCK::S(G)
- S(g);SBLOCK::S(F)
- Refutation
- S(g);
- Try
- R(J);
- Threat
- B(H),XS(f)
- Vars
- B(b);OGATE,XR(B)::QAB(A),XB(a)
- B(a);OGATE::P(C),XB(a)
- S(f);N_GUARD::R1(B)
- S(f);N_GUARD::R1(B),XS(f)
- Refutation
- S(g);
- Try
- Q(A);
- Threat
- S(F)
- Vars
- B(b);XR(B)::S(F),XB(b)
- Refutation
- P(c);XQ(A)
- Try
- Q(A);CHECK
- Refutation
- P(e);XQ(A)
- Try
- Actual
- R(J);
- Vars
- B(b);OGATE,XR(B)::QAB(A),XB(a)
- S(f);N_GUARD,XR(J)::R1(B)
- S(g);OGATE::R(J)
- B(a);N_GUARD::QAB(A),XB(a)
- B(a);OGATE::P(C),XB(a)
- B(b);OGATE::QAB(A),XB(a)
- S(f);N_GUARD::R1(B)
- S(f);N_GUARD::R1(B),XS(f)
- S(g);SBLOCK::S(G)
- S(g);SBLOCK::S(F)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
CSS/Javascript (jQuery, Bootstrap & DataTables).