MESON Chess Problem Database
Problem Display
PID: 135734 (4N1rb/p3P2b/4PPk1/1Q1K2Bp/2pP1R1P/2prNPR1/qpB5/8 w - - 0 1)
Ancin, Andrej
Magyar Sakkelet, 1962
#2
14 + 11
| 14649 | Andrej Ancin - Chess Compositions | 2008 |
SOLUTION
- SOUND
- Sets
- 1...Rxe8
- 2.Qxe8#
- 1...Rf8
- 2.exf8S#
- 1...Bxf6
- 2.Rxf6#
- 1...Rxe8
- Tries
- 1.Ke4?
- threat
- 2.Qf5#
- 1...Rxe3+
- 2.Kxe3#
- 1...Rxd4+
- 2.Kxd4#
- 1...Qa5!
- threat
- 1.Sg4?
- threat
- 2.Se5#
- 1...Bxf6
- 2.Rxf6#
- 1...hxg4!
- threat
- 1.Re4?
- threat
- 2.Bf4#
- 1...Rxd4+
- 2.Rxd4#
- 1...Rxe3
- 2.Rxe3#
- 1...Rxe8
- 2.Qxe8#
- 1...Bxf6!
- threat
- 1.Rf5?
- threat
- 2.Bf4#
- 1...Bxf6
- 2.Rxf6#
- 1...Rxd4+!
- threat
- 1.Ke4?
- Keys
- 1.Sf5!
- threat
- 2.Bh6#
- 1...Rxd4+
- 2.Sxd4#
- 1...Rxf3
- 2.Se3#
- 1...Rxe8
- 2.Qxe8#
- 1...Bxf6
- 2.Bxf6#
- threat
- 1.Sf5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 2
- REMOVED MATES = 1
- Sets
- R(j);OGATE,XS(N)::QAB(H),XR(j)
- R(j);OGATE::PXR(j)=S
- B(k);OGATE,XP(L)::R1(F),XB(k)
- Tries
- Try
- K(I);N_PINR(d),N_SPINP(E),S_FLIGHT
- Threat
- QAB1(H)
- Vars
- R(d);CHECK,XS(B)::B(A)+K(I),XR(d)
- R(d);CHECK,XP(E)::B(A)+K(I),XR(d)
- Refutation
- Q(a);
- Try
- S(B);
- Threat
- S(B)
- Vars
- B(k);OGATE,XP(L)::R1(F),XB(k)
- Refutation
- P(f);XS(B)
- Try
- R(F);N_PINR(d)
- Threat
- R(D)+B(J)
- Vars
- R(d);CHECK,OGATE,XP(E)::B(A)+R(F),XR(d)
- R(d);N_PINP(E),OGATE,XS(B)::B(A)+R(F),XR(d)
- R(j);OGATE,XS(N)::QAB(H),XR(j)
- Refutation
- B(k);XP(L)
- Try
- R(F);N_PINR(d)
- Threat
- R(D)+B(J)
- Vars
- B(k);OGATE,XP(L)::R1(F),XB(k)
- Refutation
- R(d);CHECK,XP(E)
- Try
- Actual
- S(B);N_PINR(d)
- Threat
- R(D)+B(J)
- Vars
- R(d);CHECK,XP(E)::B(A)+S(B),XR(d)
- R(d);N_PINP(E),XP(C)::B(A)+S(B)
- R(j);OGATE,XS(N)::QAB(H),XR(j)
- B(k);OGATE,XP(L)::R(D)+B(J),XB(k)
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).