MESON Chess Problem Database
Problem Display
PID: 243996 (5R1r/3Q1b2/3p1N2/3p1N1p/5k1P/3q2p1/1BnpRPBP/r1n1b2K w - - 0 1)
Gvozdjak, Peter
3rd Prize, Pat a Mat, 2014
#2
11 + 13
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Qxe2
- 2.hxg3#
- 1...Qc4
- 2.hxg3#
- 1...Qe4
- 2.hxg3#
- 1...Qb5
- 2.hxg3#
- 1...Qxf5
- 2.hxg3#
- 1...Qa6
- 2.hxg3#
- 1...Qd4
- 2.hxg3#
- 1...Se3
- 2.hxg3#
- 1...Qxe2
- Tries
- 1.Sd4?
- threat
- 2.Sxd5#
- 2.Qxd6#
- 1...Qxe2
- 2.Qf5#
- 1...Qxd4
- 2.hxg3#
- 1...Rxf8
- 2.Qxd6#
- 1...Sxe2
- 2.Qxd6#
- 1...Sxd4
- 2.Sxd5#
- 1...Qe3
- 2.Qf5#
- 1...Se3
- 2.Qxd6#
- 1...Qc4
- 2.Qf5#
- 2.Qxd6#
- 2.hxg3#
- 1...Qb5
- 2.Qf5#
- 2.Qxd6#
- 2.hxg3#
- 1...Qf5
- 2.Qxf5#
- 2.hxg3#
- 1...Qa6
- 2.Sxd5#
- 2.Qf5#
- 2.hxg3#
- 1...Qa3
- 2.Sxd5#
- 2.Qf5#
- 1...Qb3
- 2.Qf5#
- 2.Qxd6#
- 1...Qf3
- 2.Qf5#
- 2.Qxd6#
- 1...Ra5
- 2.Qxd6#
- 1...Ra6
- 2.Sxd5#
- 1...Be6
- 2.Qxd6#
- 1...Sb4
- 2.Qxd6#
- 1...Qe4!
- threat
- 1.Sxd6?
- threat
- 2.Be5#
- 1...Qxe2
- 2.Sxd5#
- 2.Qf5#
- 2.hxg3#
- 1...Qe4
- 2.hxg3#
- 1...Qf5
- 2.Qxf5#
- 2.hxg3#
- 1...Qc3
- 2.Sxd5#
- 2.Qf5#
- 1...Qe3
- 2.Sxd5#
- 2.Qf5#
- 1...Qd4
- 2.Qf5#
- 2.hxg3#
- 1...Se3
- 2.hxg3#
- 1...Sd4
- 2.Sxd5#
- 1...d4
- 2.Sd5#
- 1...Sxe2!
- threat
- 1.Sh6?
- threat
- 2.Sxh5#
- 2.Qxd6#
- 1...Qxe2
- 2.Sxd5#
- 2.Qf5#
- 2.hxg3#
- 1...Rxf8
- 2.Qxd6#
- 1...Qe4
- 2.Sxh5#
- 2.hxg3#
- 1...Qf5
- 2.Qxf5#
- 2.hxg3#
- 1...Qa6
- 2.Sxd5#
- 2.Sxh5#
- 2.Qf5#
- 2.hxg3#
- 1...Qg6
- 2.Sxd5#
- 2.Qxd6#
- 1...Qa3
- 2.Sxd5#
- 2.Sxh5#
- 2.Qf5#
- 1...Qc3
- 2.Sxd5#
- 2.Sxh5#
- 2.Qf5#
- 1...Qe3
- 2.Sxd5#
- 2.Sxh5#
- 2.Qf5#
- 1...Qf3
- 2.Qf5#
- 2.Qxd6#
- 1...Qd4
- 2.Sxh5#
- 2.Qf5#
- 2.hxg3#
- 1...Ra6
- 2.Sxh5#
- 1...Rxh6!
- threat
- 1.Se7?
- threat
- 2.Qxd6#
- 1...Qxe2
- 2.Sfxd5#
- 2.Qf5#
- 2.hxg3#
- 1...Qe4
- 2.hxg3#
- 1...Qf5
- 2.Qxf5#
- 2.hxg3#
- 1...Qa6
- 2.Sfxd5#
- 2.Qf5#
- 2.hxg3#
- 1...Qa3
- 2.Sfxd5#
- 2.Qf5#
- 1...Qc3
- 2.Sfxd5#
- 2.Qf5#
- 1...Qe3
- 2.Sfxd5#
- 2.Qf5#
- 1...Qd4
- 2.Qf5#
- 2.hxg3#
- 1...Ra6!
- threat
- 1.Sg7?
- threat
- 2.Qxd6#
- 1...Qxe2
- 2.Sxd5#
- 2.Qf5#
- 2.hxg3#
- 1...Qe4
- 2.hxg3#
- 1...Qf5
- 2.Qxf5#
- 2.hxg3#
- 1...Qa6
- 2.Sxd5#
- 2.Qf5#
- 2.hxg3#
- 1...Qa3
- 2.Sxd5#
- 2.Qf5#
- 1...Qc3
- 2.Sxd5#
- 2.Qf5#
- 1...Qe3
- 2.Sxd5#
- 2.Qf5#
- 1...Qd4
- 2.Qf5#
- 2.hxg3#
- 1...Ra6!
- threat
- 1.Re4+?
- 1...Qxe4
- 2.hxg3#
- 1...dxe4!
- 1...Qxe4
- 1.Sd4?
- Keys
- 1.Se3!
- threat
- 2.Qxd6#
- 2.hxg3#
- 1...Qxe3
- 2.Sxd5#
- 1...Bxf2
- 2.Qxd6#
- 1...Sxe2
- 2.Qxd6#
- 1...Sxe3
- 2.hxg3#
- 1...gxf2
- 2.Qxd6#
- 1...gxh2
- 2.Qxd6#
- 1...Qc3
- 2.Qf5#
- 1...Qd4
- 2.Qf5#
- 1...Sd4
- 2.Qxd6#
- 1...d4
- 2.Qxd6#
- 1...Qe4
- 2.hxg3#
- 1...Qf5
- 2.Qxf5#
- 2.hxg3#
- 1...Qa6
- 2.Sfxd5#
- 2.Qf5#
- 2.hxg3#
- 1...Qg6
- 2.Sfxd5#
- 2.Qxd6#
- 1...Qa3
- 2.Sfxd5#
- 2.Qf5#
- 2.hxg3#
- 1...Ra6
- 2.hxg3#
- 1...Rg8
- 2.Sxh5#
- 2.Qxd6#
- threat
- 1.Se3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 9
- REMOVED MATES = 5
- Sets
- Q(f);N_GUARD,XR(C)::P(F),XP(g)
- Q(f);N_GUARD::P(F),XP(g)
- Q(f);N_GUARD,P_PINB(E)::P(F),XP(g)
- Q(f);N_GUARD,XS(H)::P(F),XP(g)
- S(d);S_CUTQ(f)::P(F),XP(g)
- Tries
- Try
- S(H);
- Threat
- DUALS(2)
- Vars
- Q(f);N_GUARD,XR(C)::QAR1(J)
- Q(f);N_GUARD,XS(H)::P(F),XP(g)
- R(m);XR(K)::QAB(J),XP(k)
- S(b);XR(C)::QAB(J),XP(k)
- S(d);XS(H)::S(I),XP(i)
- Q(f);N_GUARD::QAR1(J)
- S(d);::QAB(J),XP(k)
- R(a);::QAB(J),XP(k)
- R(a);::S(I),XP(i)
- B(l);::QAB(J),XP(k)
- Refutation
- Q(f);P_PINB(E)
- Try
- S(H);XP(k)
- Threat
- B(B)
- Vars
- Q(f);N_GUARD,P_PINB(E)::P(F),XP(g)
- S(d);S_CUTQ(f)::P(F),XP(g)
- S(d);S_CUTQ(f)::S(I),XP(i)
- P(i);S_CUTQ(f)::S(I)
- Refutation
- S(b);XR(C)
- Try
- S(H);
- Threat
- DUALS(2)
- Vars
- R(m);XR(K)::QAB(J),XP(k)
- R(a);::S(I),XP(j)
- Refutation
- R(m);XS(H)
- Try
- S(H);
- Threat
- QAB(J),XP(k)
- Vars
- Q(f);N_GUARD,P_PINB(E)::P(F),XP(g)
- Refutation
- R(a);
- Try
- S(H);
- Threat
- QAB(J),XP(k)
- Vars
- Q(f);N_GUARD,P_PINB(E)::P(F),XP(g)
- Refutation
- R(a);
- Try
- R(C);CHECK
- Vars
- Q(f);P_PINB(E),XR(C)::P(F),XP(g)
- Refutation
- P(i);XR(C)
- Try
- Actual
- S(H);
- Threat
- DUALS(2)
- Vars
- Q(f);N_GUARD,XS(H)::S(I),XP(i)
- B(c);XP(D)::QAB(J),XP(k)
- S(b);XR(C)::QAB(J),XP(k)
- S(d);XS(H)::P(F),XP(g)
- P(g);XP(D)::QAB(J),XP(k)
- P(g);XP(F)::QAB(J),XP(k)
- Q(f);N_GUARD::QAR1(J)
- S(d);::QAB(J),XP(k)
- P(i);::QAB(J),XP(k)
- Q(f);P_PINB(E)::P(F),XP(g)
- R(a);::P(F),XP(g)
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).