MESON Chess Problem Database

Problem Display
PID: 268315 (1K1R3n/3N2P1/3p4/2P1N1Q1/1Rpkp1p1/2n3q1/5P2/B7 w - - 0 1)

Chicco, Adriano

Shakhmaty v SSSR, 1931

1K1R3n/3N2P1/3p4/2P1N1Q1/1Rpkp1p1/2n3q1/5P2/B7

#2

10 + 8

15601 Albrecht-Leiss-Degener Collection 2023

SOLUTION

  • SOUND
  • Sets
    • 1...Qh2
      • 2.Qd2#
    • 1...Qh4
      • 2.Qd2#
    • 1...Qxe5
      • 2.Qd2#
    • 1...Qg1
      • 2.Qd2#
    • 1...Qg2
      • 2.Qd2#
    • 1...Qd3
      • 2.Sc6#
    • 1...dxc5
      • 2.Sb6#
      • 2.Sf6#
      • 2.Sf8#
  • Tries
    • 1.Sb6?
      • threat
        • 2.Rxc4#
      • 1...Qxe5
        • 2.Qe3#
      • 1...Qd3
        • 2.Sc6#
      • 1...Kxc5!
    • 1.Sf6?
      • threat
        • 2.Rxc4#
      • 1...Qxe5
        • 2.Qe3#
      • 1...Qd3
        • 2.Sc6#
      • 1...Kxc5!
  • Keys
    • 1.Sxc4!
      • threat
        • 2.Sb2#
      • 1...dxc5+
        • 2.Sde5#
      • 1...d5+
        • 2.Sce5#
      • 1...Kd3
        • 2.Qd2#
      • 1...Qe5
        • 2.Qd2#
      • 1...Qd3
        • 2.gxh8Q#
        • 2.gxh8B#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 5
  • Sets
    • Q(b);N_GUARD::QAR2(F)
    • Q(b);N_GUARD,XS(E)::QAR2(F)
    • Q(b);SBLOCK::S(E)
  • Tries
    • Try
      • S(G);
      • Threat
        • R1(C),XP(c)
      • Vars
        • Q(b);N_GUARD,SBLOCK,XS(E)::QAB1(F)
        • Q(b);SBLOCK::S(E)
      • Refutation
        • K(d);N_SPINP(c),N_SPINS(a),S_FLIGHT,XP(D)
    • Try
      • S(G);
      • Threat
        • R1(C),XP(c)
      • Vars
        • Q(b);N_GUARD,SBLOCK,XS(E)::QAB1(F)
        • Q(b);SBLOCK::S(E)
      • Refutation
        • K(d);N_SPINP(c),N_SPINS(a),S_FLIGHT,XP(D)
  • Actual
    • S(E);XP(c)
    • Threat
      • R(C)+S(E)
    • Vars
      • P(g);CHECK,SBLOCK,XP(D)::R(J)+S(G)
      • P(g);CHECK,SBLOCK::R(C)+S(E)
      • K(d);N_SPINS(a),P-FLIGHT,S_CUTQ(b)::QAR1(F)
      • Q(b);N_GUARD::QAR2(F)
      • Q(b);N_GUARD,SBLOCK::PXS(h)=Q
HTML5 logo

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).