MESON Chess Problem Database

Problem Display
PID: 78892 (8/1Q6/1K2pp1B/3P1P2/3PPPRN/3pkN2/7R/1B6 w - - 0 1)

Pituk, Alexander

Umenie 64, 2000

8/1Q6/1K2pp1B/3P1P2/3PPPRN/3pkN2/7R/1B6

#2

13 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...Kxe4
      • 2.Re2#
    • 1...e5
      • 2.fxe5#
  • Tries
    • 1.Rg1?
      • threat
        • 2.Re1#
      • 1...Kxe4
        • 2.Re1#
        • 2.Re2#
      • 1...d2!
    • 1.Qa6?
      • threat
        • 2.Qxd3#
      • 1...d2
        • 2.Re2#
        • 2.Qe2#
        • 2.Qd3#
        • 2.Qa3#
      • 1...Kxe4!
    • 1.fxe6?
      • threat
        • 2.f5#
      • 1...Kxe4
        • 2.Re2#
        • 2.f5#
      • 1...f5!
  • Keys
    • 1.Qe7!
      • 1...Kxe4
        • 2.Qxe6#
      • 1...exd5
        • 2.exd5#
      • 1...exf5
        • 2.exf5#
      • 1...d2
        • 2.Qa3#
      • 1...e5
        • 2.fxe5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(b);P-FLIGHT,P_SPINP(a),XP(E)::R(B)
    • P(c);OGATE::B(L)+P(F),XP(c)
  • Tries
    • Try
      • R(G);
      • Threat
        • R(G)
      • Refutation
        • P(a);
    • Try
      • Q(M);
      • Threat
        • QAR1(M),XP(a)
      • Refutation
        • K(b);P-FLIGHT,P_SPINP(a),XP(E)
    • Try
      • P(J);XP(c)
      • Threat
        • B(L)+P(F)
      • Refutation
        • P(d);
  • Actual
    • Q(M);
    • Vars
      • K(b);OGATEB,P-FLIGHT,P_SPINP(a),XP(E)::QAR2(M),XP(c)
      • P(c);OGATE,XP(I)::QAR(M)+P(E),XP(c)
      • P(c);OGATE,XP(J)::QAR(M)+P(E),XP(c)
      • P(a);OGATEB::QAR(M)
      • P(c);OGATE::B(L)+P(F),XP(c)
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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).