MESON Chess Problem Database

Problem Display
PID: 266948 (1BB5/2P4K/1b6/8/2rRPk1N/1Q1b1N1p/3P3P/4R3 w - - 0 1)

Colaneri, Bruno

Zaldo MT (Problemas), 2019

1BB5/2P4K/1b6/8/2rRPk1N/1Q1b1N1p/3P3P/4R3

#2

12 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Rc1
      • 2.Qf7#
    • 1...Rc2
      • 2.Qf7#
    • 1...Rc3
      • 2.Qf7#
    • 1...Ra4
      • 2.Qf7#
    • 1...Rb4
      • 2.Qf7#
    • 1...Rxd4
      • 2.Qf7#
    • 1...Rxc7+
      • 2.Qf7#
    • 1...Bb1
      • 2.Sg6#
      • 2.Qe3#
    • 1...Bf1
      • 2.Sg6#
      • 2.Qe3#
    • 1...Bc2
      • 2.Sg6#
      • 2.Qe3#
    • 1...Be2
      • 2.Sg6#
      • 2.Qe3#
    • 1...Bxe4+
      • 2.Sg6#
      • 2.Rexe4#
  • Tries
    • 1.Re3?
      • threat
        • 2.Sg6#
      • 1...Rxc7+
        • 2.Qf7#
      • 1...Rc6!
    • 1.Qxd3?
      • threat
        • 2.Sg6#
        • 2.Qe3#
      • 1...Bxd4
        • 2.Sg6#
      • 1...Rc6
        • 2.Qe3#
      • 1...Rc3
        • 2.Sg6#
      • 1...Rxc7+!
  • Keys
    • 1.Rg1!
      • threat
        • 2.Rg4#
      • 1...Rxc7+
        • 2.Qf7#
      • 1...Bxe4+
        • 2.Sg6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 6
  • Sets
    • R(c);OGATE::QAR(D)
    • R(c);OGATE,XR(F)::QAR(D)
    • R(c);CHECK,OGATE,P_SPINR(c),XP(I)::QAR(D)
  • Tries
    • Try
      • R(A);
      • Threat
        • S(H)
      • Vars
        • R(c);CHECK,OGATE,P_SPINR(c),XP(I)::QAR(D)
      • Refutation
        • R(c);
    • Try
      • Q(D);N_SPINP(G),XB(a)
      • Threat
        • DUALS(2)
      • Vars
        • B(e);XR(F)::S(H)
        • R(c);::QAB1(D)
        • R(c);::S(H)
      • Refutation
        • R(c);CHECK,P_SPINR(c),XP(I)
  • Actual
    • R(A);
    • Threat
      • R1(A)
    • Vars
      • R(c);CHECK,OGATE,P_SPINR(c),XP(I)::QAR(D)
      • B(a);CHECK,P_SPINB(a),XP(G)::S(H)
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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).