MESON Chess Problem Database
Problem Display
PID: 65371 (4R1B1/3Qb2r/Kpp2RN1/2p3p1/2p1k3/2BNrpn1/b3p3/2n2q2 w - - 0 1)
Zappas, Byron
1st Prize, diagrammes, 1993
#2
8 + 15
| 3681 | FIDE Album (1992-1994) | 2001 |
SOLUTION
- SOUND
- Sets
- 1...Qh3
- 2.Sf2#
- 1...Qd1
- 2.Sf2#
- 1...Qh1
- 2.Sf2#
- 1...Qf2
- 2.Sxf2#
- 1...Rxd3
- 2.Qe6#
- 1...Rh1
- 2.Rxe7#
- 1...Rh2
- 2.Rxe7#
- 1...Rh3
- 2.Rxe7#
- 1...Rh4
- 2.Rxe7#
- 1...Rh5
- 2.Rxe7#
- 1...Rh6
- 2.Rxe7#
- 1...Rh8
- 2.Rxe7#
- 1...Sxd3
- 2.Qxc6#
- 1...Sh1
- 2.Qf5#
- 1...Sf5
- 2.Re6#
- 2.Qxf5#
- 1...Sh5
- 2.Qf5#
- 1...cxd3
- 2.Qg4#
- 1...g4
- 2.Rf4#
- 1...b5
- 2.Sxc5#
- 1...Qh3
- Tries
- 1.Kxb6?
- threat
- 2.Sxc5#
- 1...Rxd3
- 2.Qe6#
- 1...Sxd3
- 2.Qxc6#
- 1...cxd3
- 2.Qg4#
- 1...Sb3!
- threat
- 1.Sb2?
- threat
- 2.Qg4#
- 2.Qxc6#
- 2.Qe6#
- 1...Rd3
- 2.Qe6#
- 1...Qh3
- 2.Qxc6#
- 1...Qd1
- 2.Qg4#
- 2.Qe6#
- 1...Rh4
- 2.Rxe7#
- 2.Qxc6#
- 2.Qe6#
- 2.Qxe7#
- 1...Rf7
- 2.Qxc6#
- 2.Qe6#
- 1...Sd3
- 2.Qxc6#
- 1...Sf5
- 2.Re6#
- 2.Qxf5#
- 2.Qxc6#
- 2.Qe6#
- 1...Sh5
- 2.Qf5#
- 2.Qxc6#
- 2.Qe6#
- 1...g4
- 2.Rf4#
- 2.Qxg4#
- 2.Qxc6#
- 2.Qe6#
- 1...Rxc3!
- threat
- 1.Sb4?
- threat
- 2.Qg4#
- 2.Qxc6#
- 2.Qe6#
- 1...cxb4
- 2.Qd4#
- 1...Rd3
- 2.Qe6#
- 1...Qh3
- 2.Qxc6#
- 1...Qd1
- 2.Qg4#
- 2.Qe6#
- 1...Rh4
- 2.Rxe7#
- 2.Qxc6#
- 2.Qe6#
- 2.Qxe7#
- 1...Sd3
- 2.Qxc6#
- 1...Sf5
- 2.Re6#
- 2.Qxf5#
- 2.Qxc6#
- 2.Qe6#
- 1...Sh5
- 2.Qf5#
- 2.Qxc6#
- 2.Qe6#
- 1...g4
- 2.Rf4#
- 2.Qxg4#
- 2.Qxc6#
- 2.Qe6#
- 1...Rxc3!
- threat
- 1.Sdf4?
- threat
- 2.Qxc6#
- 2.Qe6#
- 1...gxf4
- 2.Rxf4#
- 1...Rd3
- 2.Qe6#
- 1...f2
- 2.Qxc6#
- 1...Qh3
- 2.Qxc6#
- 1...Qd1
- 2.Qe6#
- 1...Sd3
- 2.Qxc6#
- 1...Rxc3!
- threat
- 1.Sgf4?
- threat
- 2.Qxc6#
- 2.Qe6#
- 1...Rxd3
- 2.Qe6#
- 1...Sxd3
- 2.Qxc6#
- 1...gxf4
- 2.Rxf4#
- 1...f2
- 2.Qxc6#
- 1...Qh3
- 2.Sf2#
- 2.Qxc6#
- 1...cxd3!
- threat
- 1.Sge5?
- threat
- 2.Qg4#
- 2.Qxc6#
- 1...Bxf6
- 2.Qg4#
- 1...Sxd3
- 2.Qxc6#
- 1...cxd3
- 2.Qg4#
- 1...Qh3
- 2.Sf2#
- 2.Qxc6#
- 1...Rh4
- 2.Qxc6#
- 1...Rf7
- 2.Qxc6#
- 1...Sf5
- 2.Qxf5#
- 2.Qxc6#
- 1...Sh5
- 2.Bxh7#
- 2.Qf5#
- 2.Qxc6#
- 1...g4
- 2.Rf4#
- 2.Qxg4#
- 2.Qxc6#
- 1...Rxd3!
- threat
- 1.Sxe7?
- threat
- 2.Re6#
- 1...Rxd3
- 2.Qe6#
- 1...Rxe7
- 2.Rxe7#
- 1...Sxd3
- 2.Qxc6#
- 1...cxd3
- 2.Qg4#
- 1...Qh3
- 2.Sf2#
- 1...Rh6
- 2.Sf5#
- 2.Sxc6#
- 2.Sg6#
- 2.Sc8#
- 1...f2!
- threat
- 1.Bxc4?
- threat
- 2.Qg4#
- 2.Qxc6#
- 2.Qe6#
- 1...Rxd3
- 2.Qe6#
- 1...Sxd3
- 2.Qxc6#
- 1...Qh3
- 2.Sf2#
- 2.Qxc6#
- 1...Rh4
- 2.Rxe7#
- 2.Qxc6#
- 2.Qe6#
- 2.Qxe7#
- 1...Sf5
- 2.Re6#
- 2.Qxf5#
- 2.Qxc6#
- 2.Qe6#
- 1...Sh5
- 2.Qf5#
- 2.Qxc6#
- 2.Qe6#
- 1...g4
- 2.Rf4#
- 2.Qxg4#
- 2.Qxc6#
- 2.Qe6#
- 1...Bxc4+!
- threat
- 1.Bf7?
- threat
- 2.Rxe7#
- 1...Sxd3
- 2.Qxc6#
- 1...cxd3
- 2.Qg4#
- 1...Qh3
- 2.Sf2#
- 1...Sf5
- 2.Re6#
- 2.Qxf5#
- 1...Rxf7!
- threat
- 1.Bxh7?
- threat
- 2.Rxe7#
- 1...Sxd3
- 2.Qxc6#
- 1...Qh3
- 2.Sf2#
- 1...Sf5
- 2.Re6#
- 2.Qxf5#
- 1...cxd3!
- threat
- 1.Rxc6?
- threat
- 2.Qd5#
- 1...Rxd3
- 2.Qe6#
- 1...cxd3
- 2.Qg4#
- 1...Rf7!
- threat
- 1.Rd6?
- threat
- 2.Qg4#
- 2.Qe6#
- 1...Rxd3
- 2.Qe6#
- 1...cxd3
- 2.Qg4#
- 1...f2
- 2.Qg4#
- 1...Qh3
- 2.Sf2#
- 1...Rh4
- 2.Rxe7#
- 2.Qe6#
- 1...Rf7
- 2.Qe6#
- 1...Sf5
- 2.Re6#
- 2.Qxc6#
- 2.Qe6#
- 1...Sh5
- 2.Qe6#
- 1...g4
- 2.Qxg4#
- 2.Qe6#
- 1...Sxd3!
- threat
- 1.Kxb6?
- Keys
- 1.Sh4!
- threat
- 2.Re6#
- 1...Rxd3
- 2.Qe6#
- 1...Rxh4
- 2.Rxe7#
- 1...Sxd3
- 2.Qxc6#
- 1...cxd3
- 2.Qg4#
- 1...gxh4
- 2.Rf4#
- 1...Qh3
- 2.Sf2#
- 1...Rh6
- 2.Rxe7#
- threat
- 1.Sh4!
This is a version
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 12
- Sets
- Q(b);N_GUARD::S(B)
- Q(b);N_GUARD::S(B),XQ(b)
- R(e);SBLOCK,XS(B)::QAR2(F)
- R(o);N_GUARD::R(G),XB(n)
- S(a);SBLOCK,XS(B)::QAB(F),XP(m)
- S(g);N_GUARD::QAB1(F)
- P(h);SBLOCK,XS(B)::QAR2(F)
- P(k);N_GUARD::R1(D)
- P(l);N_GUARD::S(B),XP(j)
- Tries
- Try
- K(C);P-FLIGHT,XP(l)
- Threat
- S(B),XP(j)
- Vars
- R(e);SBLOCK,XS(B)::QAR2(F)
- S(a);SBLOCK,XS(B)::QAB(F),XP(m)
- P(h);SBLOCK,XS(B)::QAR2(F)
- Refutation
- S(a);
- Try
- S(B);
- Threat
- DUALS(3)
- Vars
- R(e);::QAR2(F)
- Q(b);::QAB(F),XP(m)
- S(a);::QAB(F),XP(m)
- Refutation
- R(e);XB(A)
- Try
- S(B);
- Threat
- DUALS(3)
- Vars
- P(j);N_GUARD,XS(B)::QAR1(F)
- R(e);::QAR2(F)
- Q(b);::QAB(F),XP(m)
- S(a);::QAB(F),XP(m)
- Refutation
- R(e);XB(A)
- Try
- S(B);
- Threat
- DUALS(2)
- Vars
- P(k);OGATE,XS(B)::R1(D),XP(k)
- R(e);::QAR2(F)
- P(f);::QAB(F),XP(m)
- Q(b);::QAB(F),XP(m)
- Q(b);::QAR2(F)
- S(a);::QAB(F),XP(m)
- Refutation
- R(e);XB(A)
- Try
- S(E);
- Threat
- DUALS(2)
- Vars
- R(e);XS(B)::QAR2(F)
- S(a);XS(B)::QAB(F),XP(m)
- P(k);OGATE,XS(E)::R1(D),XP(k)
- P(f);::QAB(F),XP(m)
- Refutation
- P(h);XS(B)
- Try
- S(E);N_PINB(n)
- Threat
- DUALS(2)
- Vars
- B(n);XR(D)::QAR2(F)
- S(a);XS(B)::QAB(F),XP(m)
- P(h);XS(B)::QAR2(F)
- R(o);::QAB(F),XP(m)
- Refutation
- R(e);XS(B)
- Try
- S(E);XB(n)
- Threat
- R(D)
- Vars
- R(e);SBLOCK,XS(B)::QAR2(F)
- R(o);OGATE,P_SPINR(o),XS(E)::R(G),XR(o)
- S(a);SBLOCK,XS(B)::QAB(F),XP(m)
- P(h);SBLOCK,XS(B)::QAR2(F)
- Q(b);N_GUARD::S(B)
- Refutation
- P(f);
- Try
- B(H);XP(h)
- Threat
- DUALS(3)
- Vars
- R(e);XS(B)::QAR2(F)
- S(a);XS(B)::QAB(F),XP(m)
- Refutation
- B(c);CHECK,XB(H)
- Try
- B(H);
- Threat
- R(G),XB(n)
- Vars
- S(a);SBLOCK,XS(B)::QAB(F),XP(m)
- P(h);SBLOCK,XS(B)::QAR2(F)
- Q(b);N_GUARD::S(B)
- Refutation
- R(o);XB(H)
- Try
- B(H);XR(o)
- Threat
- R(G),XB(n)
- Vars
- S(a);SBLOCK,XS(B)::QAB(F),XP(m)
- Q(b);N_GUARD::S(B)
- Refutation
- P(h);XS(B)
- Try
- R(D);XP(m)
- Threat
- QAB1(F)
- Vars
- R(e);SBLOCK,XS(B)::QAR2(F)
- P(h);SBLOCK,XS(B)::QAR2(F)
- Refutation
- R(o);
- Try
- R(D);
- Threat
- DUALS(2)
- Vars
- R(e);XS(B)::QAR2(F)
- P(h);XS(B)::QAR2(F)
- P(f);::QAR2(F)
- Q(b);N_GUARD::S(B)
- R(o);::QAR2(F)
- S(g);::QAR2(F)
- Refutation
- S(a);XS(B)
- Try
- Actual
- S(E);
- Threat
- R(D)
- Vars
- R(e);SBLOCK,XS(B)::QAR2(F)
- R(o);N_GUARD,XS(E)::R(G),XB(n)
- S(a);SBLOCK,XS(B)::QAB(F),XP(m)
- P(h);SBLOCK,XS(B)::QAR2(F)
- P(k);N_GUARD,XS(E)::R1(D)
- Q(b);N_GUARD::S(B)
- R(o);N_GUARD::R(G),XB(n)
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).