MESON Chess Problem Database
Problem Display
PID: 152340 (Q4R2/B7/8/2N2pP1/2P1Np2/R2Brk1K/8/8 w - - 0 1)
Zilahi, Zoltan
L'Italia Scacchistica, 1930
#2
10 + 4
SOLUTION
- SOUND
- Tries
- 1.Sa4?
- 1...Rxd3
- 2.Sg3#
- 1...Rxe4
- 2.Bf1#
- 1...Re1
- 2.Sd2#
- 1...Re2
- 2.Sd2#
- 1...fxe4!
- 1...Rxd3
- 1.Sa6?
- 1...Rxd3
- 2.Sg3#
- 1...Rxe4
- 2.Bf1#
- 1...Re1
- 2.Sd2#
- 1...Re2
- 2.Sd2#
- 1...fxe4!
- 1...Rxd3
- 1.Sd7?
- threat
- 2.Se5#
- 1...Rxd3
- 2.Sg3#
- 1...fxe4!
- threat
- 1.Sa4?
- Keys
- 1.Se6!
- threat
- 2.Sd4#
- 1...Rxd3
- 2.Sg3#
- 1...Rxe4
- 2.Bf1#
- 1...fxe4
- 2.Rxf4#
- 1...Re1
- 2.Sd2#
- 1...Re2
- 2.Sd2#
- threat
- 1.Se6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 0
- Sets
- Tries
- Try
- S(F);
- Vars
- R(a);N_GUARD,P_SPINR(a),XB(B)::QAB(I)+S(E)
- R(a);OGATEB,P_SPINR(a),XS(E)::R(A)+B(B)
- R(a);::QAB(I)+S(E),DCHECK
- Refutation
- P(d);P_SPINP(d),XS(E)
- Try
- S(F);
- Vars
- R(a);N_GUARD,P_SPINR(a),XB(B)::QAB(I)+S(E)
- R(a);OGATEB,P_SPINR(a),XS(E)::R(A)+B(B)
- R(a);::QAB(I)+S(E),DCHECK
- Refutation
- P(d);P_SPINP(d),XS(E)
- Try
- S(F);
- Threat
- S(F)
- Vars
- R(a);N_GUARD,P_SPINR(a),XB(B)::QAB(I)+S(E)
- Refutation
- P(d);P_SPINP(d),XS(E)
- Try
- Actual
- S(F);
- Threat
- S(F)
- Vars
- R(a);N_GUARD,P_SPINR(a),XB(B)::QAB(I)+S(E)
- R(a);OGATEB,P_SPINR(a),XS(E)::R(A)+B(B)
- P(d);OGATE,P_SPINP(d),XS(E)::R1(J),XP(c)
- R(a);::QAB(I)+S(E),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).