MESON Chess Problem Database

Problem Display
PID: 51724 (5K2/8/6Pk/6p1/2P2R1N/8/Q7/3B4 w - - 0 1)

Stojnic, Dragan

2nd HM., Gambit, 1998

5K2/8/6Pk/6p1/2P2R1N/8/Q7/3B4

#2

7 + 2

5454 Near Snap 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Rf5?
      • 1...g4
        • 2.Qd2#
      • 1...gxh4!
    • 1.Rf6?
      • threat
        • 2.Sf5#
      • 1...gxh4
        • 2.Qd2#
      • 1...g4!
    • 1.Qg2?
      • 1...gxf4
        • 2.Sf5#
      • 1...gxh4
        • 2.Rxh4#
      • 1...g4!
    • 1.Qa5?
      • 1...gxf4
        • 2.Qh5#
      • 1...gxh4
        • 2.Qh5#
      • 1...g4!
  • Keys
    • 1.Qd2!
      • 1...gxf4
        • 2.Qxf4#
      • 1...gxh4
        • 2.Rf6#
      • 1...g4
        • 2.Rf5#

This anticipates 180578(2016)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(D);
      • Vars
        • P(a);OGATEB::QAB(B)
      • Refutation
        • P(a);XS(E)
    • Try
      • R(D);
      • Threat
        • S(E)
      • Vars
        • P(a);OGATEB,XS(E)::QAB(B)
      • Refutation
        • P(a);
    • Try
      • Q(B);
      • Vars
        • P(a);XR(D)::S(E)
        • P(a);OGATE,XS(E)::R(D),XP(a)
      • Refutation
        • P(a);
    • Try
      • Q(B);
      • Vars
        • P(a);OGATE,XR(D)::QAR1(B)
        • P(a);OGATE,XS(E)::QAR1(B)
      • Refutation
        • P(a);
  • Actual
    • Q(B);
    • Vars
      • P(a);OGATE,P_SPINP(a),XR(D)::QAB(B),XP(a)
      • P(a);OGATEB,XS(E)::QAB(B)+R(D)
      • P(a);OGATEB::QAB(B)+R(D)
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