MESON Chess Problem Database
Problem Display
PID: 268884 (3N1q2/1Q1p1P2/pP6/1Rp1B3/pPk1p1N1/P7/2Pb2K1/2R5 w - - 0 1)
Labai, Zoltan
Problemas, 2020
#2
12 + 8
SOLUTION
- SOUND
- Sets
- 1...Kxb5
- 2.c4#
- 1...Qh6
- 2.Rxc5#
- 1...Qg7
- 2.Rxc5#
- 1...Qxf7
- 2.Rxc5#
- 1...Qxd8
- 2.Rxc5#
- 1...Qe8
- 2.Rxc5#
- 1...Qg8
- 2.Rxc5#
- 1...Qh8
- 2.Rxc5#
- 1...cxb4
- 2.Qd5#
- 1...axb5
- 2.Qxe4#
- 1...Kxb5
- Tries
- 1.Se3+?
- 1...Kxb5
- 2.c4#
- 1...Bxe3!
- 1...Kxb5
- 1.Ra5?
- threat
- 2.Qxe4#
- 1...Bc3
- 2.Se3#
- 1...Be3
- 2.Sxe3#
- 1...e3
- 2.Qe4#
- 1...d5
- 2.Qxa6#
- 1...Qd6!
- threat
- 1.Qd5+?
- 1...Kxd5
- 2.c4#
- 1...Kxb5!
- 1...Kxd5
- 1.Se3+?
- Keys
- 1.Qxa6!
- threat
- 2.Rxc5#
- 1...Kd5
- 2.c4#
- 1...Bxb4
- 2.Se3#
- 1...cxb4
- 2.Ra5#
- threat
- 1.Qxa6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 2
- REMOVED MATES = 9
- Sets
- K(c);OGATE,S_FLIGHT,XR(G)::P(B)
- Q(h);N_GUARD::R1(G),XP(e)
- Q(h);N_GUARD,P_PINS(F)::R1(G),XP(e)
- Q(h);N_GUARD,XP(K)::R1(G),XP(e)
- Q(h);N_GUARD,XS(L)::R1(G),XP(e)
- P(e);XP(E)::QAB1(J)
- P(f);SBLOCK,XR(G)::QAR2(J),XP(d)
- Tries
- Try
- S(F);CHECK
- Vars
- K(c);OGATE,S_FLIGHT,XR(G)::P(B)
- Refutation
- B(a);XS(F)
- Try
- R(G);
- Threat
- QAR2(J),XP(d)
- Vars
- B(a);N_GUARD::S(F)
- B(a);N_GUARD::S(F),XB(a)
- P(d);::QAR2(J)
- P(g);SBLOCK::QAB(J),XP(f)
- Refutation
- Q(h);
- Try
- Q(J);CHECK
- Vars
- K(c);OGATE,P_SPINP(e),S_FLIGHT,XQ(J)::P(B)
- Refutation
- K(c);P_SPINP(e),S_FLIGHT,XR(G)
- Try
- Actual
- Q(J);XP(f)
- Threat
- QAB(J)+R(G),DCHECK,XP(e)
- Vars
- K(c);OGATE,P_SPINP(e),S_FLIGHT::P(B)
- B(a);N_GUARD,XP(E)::S(F)
- P(e);XP(E)::QAB(J)+R(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).