MESON Chess Problem Database
Problem Display
PID: 51541 (1r6/2Bp4/2P1P3/1PQ2P1q/2pNN1p1/1P2kPpn/2B1P2b/1n1bKR2 w - - 0 1)
Morse, Christopher Jeremy
The Guardian, 1963
#2
14 + 11
SOLUTION
- SOUND
- Sets
- 1...Qxf5
- 2.Sxf5#
- 1...Rxb5
- 2.Sxb5#
- 1...Bxc2
- 2.Sxc2#
- 1...Bxe2
- 2.Sxe2#
- 1...cxb3
- 2.Sxb3#
- 1...gxf3
- 2.Sxf3#
- 1...dxc6
- 2.Sxc6#
- 1...dxe6
- 2.Sxe6#
- 1...Qxf5
- Tries
- 1.Sc3?
- threat
- 2.Sxd1#
- 2.Sd5#
- 2.Qe5#
- 1...Qxf5
- 2.Sxd1#
- 2.Sxf5#
- 1...Rxb5
- 2.Sxd1#
- 2.Sd5#
- 2.Sdxb5#
- 1...Bxc2
- 2.Sd5#
- 2.Sxc2#
- 1...Bxe2
- 2.Sd5#
- 2.Sdxe2#
- 2.Qe5#
- 1...dxc6
- 2.Sxd1#
- 2.Sxc6#
- 2.Qe5#
- 1...dxe6
- 2.Sxd1#
- 2.Sxe6#
- 2.Qe5#
- 1...d6
- 2.Sd5#
- 1...Qh8
- 2.Sxd1#
- 2.Sd5#
- 1...Sd2
- 2.Sxd1#
- 2.Sd5#
- 1...Sf2
- 2.Sd5#
- 1...Sf4
- 2.Sxd1#
- 2.Qe5#
- 1...Sg5
- 2.Sxd1#
- 2.Sd5#
- 1...g2
- 2.Sxd1#
- 2.Sd5#
- 1...d5
- 2.Sxd1#
- 2.Sxd5#
- 1...Sxc3!
- threat
- 1.Sf6?
- threat
- 2.Sd5#
- 2.Qe5#
- 1...Qxf5
- 2.Sxf5#
- 1...Rxb5
- 2.Sxb5#
- 2.Sd5#
- 1...Bxc2
- 2.Sxc2#
- 2.Sd5#
- 1...dxc6
- 2.Sxc6#
- 2.Qe5#
- 1...dxe6
- 2.Sxe6#
- 2.Qe5#
- 1...d6
- 2.Sd5#
- 1...Sd2
- 2.Sd5#
- 1...Sf2
- 2.Sd5#
- 1...Sf4
- 2.Qe5#
- 1...Sg5
- 2.Sd5#
- 1...g2
- 2.Sd5#
- 1...d5
- 2.Sxd5#
- 1...Sc3!
- threat
- 1.Bxb1?
- threat
- 2.Sc2#
- 1...Bxe2
- 2.Sxe2#
- 1...gxf3
- 2.Sxf3#
- 1...Bc2
- 2.Sxc2#
- 1...d6!
- threat
- 1.fxg4?
- threat
- 2.Sf3#
- 2.Rf3#
- 1...Qxg4
- 2.Sf3#
- 1...Qxf5
- 2.Sxf5#
- 1...Rxb5
- 2.Sxb5#
- 2.Rf3#
- 1...Bxe2
- 2.Sxe2#
- 2.Sf3#
- 1...Qh8
- 2.Rf3#
- 1...Sd2
- 2.Sf3#
- 1...Sg1
- 2.Sf3#
- 2.Bf4#
- 1...Sf2
- 2.Sf3#
- 1...Sg5
- 2.Sf3#
- 2.Bf4#
- 1...d5
- 2.Rf3#
- 1...d6
- 2.Rf3#
- 1...Bxc2!
- threat
- 1.cxd7?
- threat
- 2.Sc6#
- 1...Qxf5
- 2.Sxf5#
- 1...Rxb5
- 2.Sxb5#
- 1...Qh8!
- threat
- 1.exd7?
- threat
- 2.Se6#
- 1...Qxf5
- 2.Sxf5#
- 1...Rxb5
- 2.Sxb5#
- 1...Qh8!
- threat
- 1.Sc3?
- Keys
- 1.Qe5!
- threat
- 2.Sd2#
- 2.Sf2#
- 2.Sc3#
- 2.Sxg3#
- 2.Sc5#
- 2.Sg5#
- 2.Sd6#
- 2.Sf6#
- 1...Qxf5
- 2.Sxf5#
- 1...Rxb5
- 2.Sc5#
- 1...Bxc2
- 2.Sxc2#
- 1...Qg5
- 2.Sd2#
- 2.Sf2#
- 2.Sc3#
- 2.Sxg3#
- 2.Sc5#
- 2.Sxg5#
- 2.Sd6#
- 2.Sf6#
- 1...Qh8
- 2.Sf6#
- 1...Sd2
- 2.Sxd2#
- 1...Sc3
- 2.Sxc3#
- 1...Sf2
- 2.Sxf2#
- 1...Sg5
- 2.Sxg5#
- 1...g2
- 2.Sg3#
- 1...c3
- 2.Sd2#
- 2.Sf2#
- 2.Sxc3#
- 2.Sxg3#
- 2.Sc5#
- 2.Sg5#
- 2.Sd6#
- 2.Sf6#
- 1...d6
- 2.Sxd6#
- threat
- 1.Qe5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 7
- REMOVED MATES = 5
- Sets
- Q(i);XP(K)::QAB(J)+S(G),DCHECK,XQ(i)
- R(k);XP(I)::QAB(J)+S(G),XR(k)
- B(b);XB(C)::QAB(J)+S(G),DCHECK,XB(b)
- B(b);XP(D)::QAB(J)+S(G),XB(b)
- P(g);XP(E)::QAB(J)+S(G),XP(g)
- P(h);XP(F)::QAB(J)+S(G),XP(h)
- P(j);XP(L)::QAB(J)+S(G),XP(j)
- P(j);XP(M)::QAB(J)+S(G),XP(j)
- Tries
- Try
- S(H);
- Threat
- DUALS(3)
- Vars
- P(j);::S(H)
- S(f);::S(H)
- Refutation
- S(a);XS(H)
- Try
- S(H);
- Threat
- DUALS(2)
- Vars
- Q(i);XP(K)::QAB(J)+S(G),DCHECK,XQ(i)
- P(j);::S(H)
- S(a);::S(H)
- S(f);::S(H)
- S(f);::QAR2(J)
- P(e);::S(H)
- P(j);::S(H),XP(j)
- Refutation
- S(a);
- Try
- B(C);XS(a)
- Threat
- QAB(J)+S(G),DCHECK
- Vars
- B(b);XP(D)::QAB(J)+S(G),XB(b)
- P(h);XP(F)::QAB(J)+S(G),XP(h)
- B(b);::QAB(J)+S(G),DCHECK,XB(b)
- Refutation
- P(j);
- Try
- P(F);XP(h)
- Threat
- DUALS(2)
- Vars
- Q(i);XP(F)::QAB(J)+S(G)
- Q(i);XP(K)::QAB(J)+S(G),DCHECK,XQ(i)
- Q(i);::R1(B)
- S(a);::QAB(J)+S(G)
- S(f);::QAB(J)+S(G)
- P(j);::R1(B)
- Refutation
- B(b);XB(C)
- Try
- P(L);XP(j)
- Threat
- QAB(J)+S(G)
- Vars
- Q(i);XP(K)::QAB(J)+S(G),DCHECK,XQ(i)
- R(k);XP(I)::QAB(J)+S(G),XR(k)
- Refutation
- Q(i);
- Try
- P(M);XP(j)
- Threat
- QAB(J)+S(G)
- Vars
- Q(i);XP(K)::QAB(J)+S(G),DCHECK,XQ(i)
- R(k);XP(I)::QAB(J)+S(G),XR(k)
- Refutation
- Q(i);
- Try
- Actual
- Q(J);
- Threat
- DUALS(8)
- Vars
- Q(i);XP(K)::S(G),XQ(i)
- R(k);XP(I)::QAR(J)+S(H)
- B(b);XB(C)::S(G),XB(b)
- Q(i);::QAR(J)+S(H)
- S(a);::QAR(J)+S(H),XS(a)
- S(f);::QAR(J)+S(H),XS(f)
- P(e);::QAR(J)+S(H)
- P(j);::QAR(J)+S(H),XP(j)
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).