MESON Chess Problem Database
Problem Display
PID: 243977 (8/5R2/1nb2NK1/Q2q1BpP/R2B1k2/3Pppr1/6pP/6N1 w - - 0 1)
Gvozdjak, Peter
2nd HM., Pat a Mat 01. TT, 1992-1994
#2
11 + 9
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Qa2
- 2.Be5#
- 2.Qe5#
- 1...Qb3
- 2.Be5#
- 2.Qe5#
- 1...Qc4
- 2.Be5#
- 2.Qe5#
- 1...Qe4
- 2.Be5#
- 1...Qe6
- 2.Be5#
- 1...Qe5
- 2.Bxe5#
- 2.Qxe5#
- 1...Qxf5+
- 2.Qxf5#
- 1...Qd6
- 2.Be5#
- 1...Qd7
- 2.Be5#
- 2.Qe5#
- 1...Qd8
- 2.Be5#
- 2.Qe5#
- 1...Rh3
- 2.Sxh3#
- 1...Rg4
- 2.Sh3#
- 1...e2
- 2.Qd2#
- 1...Qa2
- Tries
- 1.Se4?
- threat
- 2.hxg3#
- 1...Qe6+
- 2.Bxe6#
- 1...Qxf5+
- 2.Qxf5#
- 1...Qd6+
- 2.Be6#
- 1...Qxe4
- 2.Be5#
- 1...Rh3
- 2.Sxh3#
- 1...Rg4
- 2.Sh3#
- 1...Qxf7+!
- threat
- 1.Sg4?
- threat
- 2.Bxe3#
- 2.Be5#
- 1...Qe6+
- 2.Bxe6#
- 1...Qxf5+
- 2.Qxf5#
- 1...Qd6+
- 2.Be6#
- 1...Qxd4
- 2.Be6#
- 2.Bd7#
- 2.Bc8#
- 2.Qe5#
- 1...Rxg4
- 2.Sh3#
- 1...Bxa4
- 2.Bxe3#
- 1...Sxa4
- 2.Bxe3#
- 1...Qe5
- 2.Bxe3#
- 2.Bxe5#
- 2.Qxe5#
- 1...Sc4
- 2.Bxe3#
- 1...e2
- 2.Be3#
- 2.Be5#
- 2.Qd2#
- 1...Qxf7+!
- threat
- 1.Sxd5+?
- 1...Bxd5
- 2.Be6#
- 1...Sxd5!
- 1...Bxd5
- 1.Bxe3+?
- 1...Kxe3
- 2.Qe1#
- 1...Ke5!
- 1...Kxe3
- 1.Bxb6+?
- 1...Ke5
- 2.Bc7#
- 1...Qc4
- 2.Bc7#
- 1...Qe4
- 2.Bc7#
- 1...Qd4
- 2.Bc7#
- 1...Bxa4!
- 1...Ke5
- 1.Bh3?
- threat
- 2.Sxd5#
- 1...Qe4+
- 2.Sxe4#
- 1...Qf5+
- 2.Qxf5#
- 1...Qxd4
- 2.Sg4#
- 2.Sd7#
- 2.Sh7#
- 2.Se8#
- 2.Sg8#
- 2.Qf5#
- 1...Qxa5
- 2.Sd5#
- 1...Rxh3
- 2.Sxh3#
- 1...Qa2
- 2.Sd5#
- 2.Be5#
- 2.Qe5#
- 2.Qf5#
- 1...Qb3
- 2.Sd5#
- 2.Be5#
- 2.Qe5#
- 2.Qf5#
- 1...Qc4
- 2.Sd5#
- 2.Be5#
- 2.Qe5#
- 2.Qf5#
- 1...Qe6
- 2.Be5#
- 1...Qb5
- 2.Sd5#
- 1...Qc5
- 2.Sd5#
- 1...Qe5
- 2.Sd5#
- 2.Bxe5#
- 2.Qxe5#
- 1...Qd6
- 2.Be5#
- 2.Qf5#
- 1...Qd7
- 2.Sd5#
- 2.Sxd7#
- 2.Be5#
- 2.Qe5#
- 1...Qd8
- 2.Sd5#
- 2.Be5#
- 2.Qe5#
- 2.Qf5#
- 1...Qxf7+!
- threat
- 1.h6?
- threat
- 2.Sh5#
- 1...Qxf5+
- 2.Qxf5#
- 1...Qe6
- 2.Be5#
- 1...Qd6
- 2.Be5#
- 1...Rh3
- 2.Sxh3#
- 1...Qxf7+!
- threat
- 1.Se4?
- Keys
- 1.Be6!
- threat
- 2.Sxd5#
- 1...Qe4+
- 2.Sxe4#
- 1...Qf5+
- 2.Qxf5#
- 1...Qxe6
- 2.Be5#
- 1...Qxd4
- 2.Sg4#
- 2.Sd7#
- 2.Sh7#
- 2.Se8#
- 2.Sg8#
- 2.Qf5#
- 1...Qxa5
- 2.Sd5#
- 1...Qa2
- 2.Se4#
- 2.Sg4#
- 2.Sd5#
- 2.Sd7#
- 2.Sh7#
- 2.Se8#
- 2.Sg8#
- 2.Be5#
- 2.Qe5#
- 2.Qf5#
- 1...Qb3
- 2.Se4#
- 2.Sg4#
- 2.Sd5#
- 2.Sd7#
- 2.Sh7#
- 2.Se8#
- 2.Sg8#
- 2.Be5#
- 2.Qe5#
- 2.Qf5#
- 1...Qc4
- 2.Se4#
- 2.Sg4#
- 2.Sd5#
- 2.Sd7#
- 2.Sh7#
- 2.Se8#
- 2.Sg8#
- 2.Be5#
- 2.Qe5#
- 2.Qf5#
- 1...Qb5
- 2.Sd5#
- 1...Qc5
- 2.Sd5#
- 1...Qe5
- 2.Sd5#
- 2.Bxe5#
- 2.Qxe5#
- 1...Qd6
- 2.Se4#
- 2.Sg4#
- 2.Sd5#
- 2.Sd7#
- 2.Sh7#
- 2.Se8#
- 2.Sg8#
- 2.Be5#
- 2.Qf5#
- 1...Qd7
- 2.Sd5#
- 2.Sxd7#
- 2.Be5#
- 2.Qe5#
- 2.Qf5#
- 1...Qd8
- 2.Sd5#
- 2.Be5#
- 2.Qe5#
- 2.Qf5#
- threat
- 1.Be6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 3
- REMOVED MATES = 4
- Sets
- Q(f);P_PINB(G)::B(E)
- Q(f);P_PINS(I)::R(D)+B(E),DCHECK
- Q(f);CHECK,OGATE,XB(G)::QAR1(F),XQ(f)
- R(d);N_GUARD::S(A),XR(d)
- R(d);N_GUARD::S(A)
- P(b);OGATEB::QAB(F)
- Tries
- Try
- S(I);
- Threat
- P(B),XR(d)
- Vars
- Q(f);CHECK,N_GUARD::R(K)+B(G),XQ(f)
- Q(f);CHECK,OGATE,P_SPINQ(f),XB(G)::QAR1(F),XQ(f)
- Q(f);CHECK,N_GUARD::R(K)+B(G)
- Q(f);N_GUARD,P_PINB(G),XS(I)::B(E)
- R(d);N_GUARD::S(A),XR(d)
- R(d);N_GUARD::S(A)
- Refutation
- Q(f);CHECK,XR(K)
- Try
- S(I);
- Threat
- DUALS(2)
- Vars
- Q(f);CHECK,N_GUARD::R(K)+B(G),XQ(f)
- Q(f);CHECK,OGATE,P_SPINQ(f),XB(G)::QAR1(F),XQ(f)
- Q(f);CHECK,N_GUARD::R(K)+B(G)
- R(d);N_GUARD,XS(I)::S(A)
- B(i);XR(D)::B(E),XP(b)
- S(h);XR(D)::B(E),XP(b)
- S(h);::B(E),XP(b)
- Refutation
- Q(f);CHECK,XR(K)
- Try
- S(I);CHECK,XQ(f)
- Vars
- B(i);XS(I)::R(K)+B(G)
- Refutation
- S(h);XS(I)
- Try
- B(E);CHECK,XP(b)
- Vars
- K(e);S_FLIGHT,XB(E)::QAR2(F)
- Refutation
- K(e);P_SPINQ(f),S_FLIGHT
- Try
- B(E);CHECK,XS(h)
- Vars
- K(e);P_SPINQ(f),S_FLIGHT::B(E)
- Q(f);P_SPINQ(f)::B(E)
- Q(f);P_PINB(G),P_SPINQ(f)::B(E)
- Refutation
- B(i);XR(D)
- Try
- B(G);
- Threat
- R(K)+S(I),DCHECK,XQ(f)
- Vars
- Q(f);CHECK,N_GUARD::R(K)+S(I),XQ(f)
- Q(f);CHECK,OGATE::QAR1(F),XQ(f)
- Q(f);XQ(F)::R(K)+S(I),DCHECK
- R(d);XB(G)::S(A),XR(d)
- Q(f);P_PINS(I)::R(D)+B(E),DCHECK
- Q(f);::R(K)+S(I),DCHECK
- Refutation
- Q(f);CHECK,XR(K)
- Try
- P(H);
- Threat
- S(I)
- Vars
- Q(f);CHECK,OGATE,XB(G)::QAR1(F),XQ(f)
- Q(f);P_PINS(I)::R(D)+B(E),DCHECK
- R(d);N_GUARD::S(A),XR(d)
- Refutation
- Q(f);CHECK,XR(K)
- Try
- Actual
- B(G);
- Threat
- R(K)+S(I),DCHECK,XQ(f)
- Vars
- Q(f);CHECK,N_GUARD::R(K)+S(I),XQ(f)
- Q(f);CHECK,OGATE::QAR1(F),XQ(f)
- Q(f);P_PINS(I),XB(G)::R(D)+B(E),DCHECK
- Q(f);XQ(F)::R(K)+S(I),DCHECK
- Q(f);::R(K)+S(I),DCHECK
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).