MESON Chess Problem Database
Problem Display
PID: 2808 (8/n1PrB1p1/K1B2p2/2R4p/nPPk2r1/N7/bPP1R2Q/2Nq2b1 w - - 0 1)
Wills, W Fred
Source?, 0000
#2
13 + 11
| 2794 | Terms & Themes of Chess Problems | 1907 |
SOLUTION
- SOUND
- Sets
- 1...Qxc2
- 2.Sxc2#
- 1...Rg2
- 2.Re4#
- 2.Qf4#
- 1...Rg3
- 2.Re4#
- 1...Re4
- 2.Rxe4#
- 1...Rf4
- 2.Qxf4#
- 1...Rh4
- 2.Qxh4#
- 1...Rg5
- 2.Re4#
- 2.Qf4#
- 1...Rg6
- 2.Re4#
- 2.Qf4#
- 1...Rd5
- 2.Rxd5#
- 1...Rd6
- 2.Qxd6#
- 1...Rxc7
- 2.Rd5#
- 2.Qd6#
- 1...Rxe7
- 2.Rd5#
- 2.Qd6#
- 1...Rd8
- 2.cxd8Q#
- 2.cxd8R#
- 1...Bf2
- 2.Qxf2#
- 1...Bb1
- 2.Sb3#
- 1...Bb3
- 2.Sxb3#
- 1...Bxc4+
- 2.Rxc4#
- 1...Sxc5+
- 2.Bxc5#
- 1...Sb6
- 2.c3#
- 1...Sb5
- 2.Sxb5#
- 1...Sxc6
- 2.Sb5#
- 1...Sc8
- 2.Sb5#
- 1...f5
- 2.Qe5#
- 1...g5
- 2.Bxf6#
- 1...g6
- 2.Bxf6#
- 1...Qxc2
- Tries
- 1.Rd2+?
- 1...Qxd2
- 2.Qxd2#
- 1...Ke3!
- 1...Qxd2
- 1.Qxg1+?
- 1...Rxg1
- 2.Re4#
- 1...Qxg1!
- 1...Rxg1
- 1.Rd2+?
- Keys
- 1.Qg3!
- 1...Bxc4+
- 2.Rxc4#
- 1...Sxc5+
- 2.Bxc5#
- 1...Qxc2
- 2.Sxc2#
- 1...Qxe2
- 2.Sxe2#
- 1...Qxc1
- 2.Qd3#
- 1...Rxg3
- 2.Re4#
- 1...Rxc7
- 2.Rd5#
- 2.Qd6#
- 1...Rxe7
- 2.Rd5#
- 2.Qd6#
- 1...Sxb2
- 2.c3#
- 1...Sxc6
- 2.Sb5#
- 1...Qe1
- 2.Qd3#
- 1...Qf1
- 2.Qd3#
- 1...Qd2
- 2.Rxd2#
- 1...Qd3
- 2.Qxd3#
- 1...Re4
- 2.Rxe4#
- 1...Rf4
- 2.Qxf4#
- 1...Rh4
- 2.Qxh4#
- 1...Rg5
- 2.Re4#
- 2.Qf4#
- 1...Rg6
- 2.Re4#
- 2.Qf4#
- 1...Rd5
- 2.Rxd5#
- 1...Rd6
- 2.Qxd6#
- 1...Rd8
- 2.cxd8Q#
- 2.cxd8R#
- 1...Bf2
- 2.Qxf2#
- 1...Bh2
- 2.Qf2#
- 2.Qe3#
- 1...Be3
- 2.Qxe3#
- 1...Bb1
- 2.Sb3#
- 1...Bb3
- 2.Sxb3#
- 1...Sc3
- 2.Qxc3#
- 2.bxc3#
- 1...Sb6
- 2.Qc3#
- 2.c3#
- 1...Sb5
- 2.Sxb5#
- 1...Sc8
- 2.Sb5#
- 1...h4
- 2.Qxg4#
- 1...f5
- 2.Qe5#
- 1...g5
- 2.Bxf6#
- 1...g6
- 2.Bxf6#
- 1...Bxc4+
- 1.Qg3!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 9
- REMOVED MATES = 1
- Sets
- Q(a);XP(C)::S(F),XQ(a)
- R(f);N_GUARD::R1(D)
- R(f);N_GUARD::R1(D),XR(f)
- R(f);N_GUARD::QAR2(E),XR(f)
- R(f);OGATEB::QAR(E),XR(f)
- R(j);N_GUARD::R1(I),XR(j)
- R(j);N_GUARD,P_PINB(K)::QAR2(E),XR(j)
- R(j);OGATE::PXR(j)=Q
- B(b);N_GUARD::QAB(E),XB(b)
- B(c);N_GUARD::S(A)
- B(c);N_GUARD::S(A),XB(c)
- B(c);CHECK,OGATE,XP(H)::R1(I),XB(c)
- S(d);CHECK,OGATE,XR(I)::B(M),XS(d)
- S(d);N_GUARD::P(C)
- S(i);N_GUARD::S(F),XS(i)
- S(i);N_GUARD,XB(K)::S(F)
- S(i);N_GUARD::S(F)
- P(h);N_GUARD::QAB1(E)
- P(k);N_GUARD::B(M),XP(h)
- Tries
- Try
- R(D);CHECK
- Vars
- Q(a);OGATE,XR(D)::QAR2(E),XQ(a)
- Refutation
- K(e);S_FLIGHT
- Try
- Q(E);CHECK,XB(b)
- Vars
- R(f);XQ(E)::R1(D)
- Refutation
- Q(a);XQ(E)
- Try
- Actual
- Q(E);
- Vars
- B(c);CHECK,OGATE,XP(H)::R1(I),XB(c)
- S(d);CHECK,OGATE,XR(I)::B(M),XS(d)
- Q(a);XP(C)::S(F),XQ(a)
- Q(a);P_PINP(H),XR(D)::S(A),XQ(a)
- Q(a);N_GUARD,XS(A)::QAR1(E)
- R(f);N_GUARD,XQ(E)::R1(D)
- S(d);N_GUARD,XP(B)::P(C)
- S(i);N_GUARD,XB(K)::S(F)
- Q(a);N_GUARD::QAR1(E)
- Q(a);N_GUARD::R(D),XQ(a)
- Q(a);N_GUARD,P_PINP(H)::QAR1(E),XQ(a)
- R(f);N_GUARD::R1(D),XR(f)
- R(f);N_GUARD::QAR2(E),XR(f)
- R(f);OGATEB::QAR(E),XR(f)
- R(j);N_GUARD::R1(I),XR(j)
- R(j);N_GUARD,P_PINB(K)::QAR2(E),XR(j)
- R(j);OGATE::PXR(j)=Q
- B(b);N_GUARD::QAB(E),XB(b)
- B(b);N_GUARD::QAB1(E),XB(b)
- B(c);N_GUARD::S(A)
- B(c);N_GUARD::S(A),XB(c)
- S(i);N_GUARD::S(F),XS(i)
- S(i);N_GUARD::S(F)
- P(g);N_GUARD::QAR(E),XR(f)
- P(h);N_GUARD::QAB1(E)
- P(k);N_GUARD::B(M),XP(h)
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).