MESON Chess Problem Database

Problem Display
PID: 161759 (8/8/8/4p2Q/2K1kP2/8/3B4/7b w - - 0 1)

Antipov, Viacheslav Pavlovich

Kudesnik, 1998

8/8/8/4p2Q/2K1kP2/8/3B4/7b

#2

4 + 3

15148 Sadier Collection 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Bf3
      • 2.Qg6#
      • 2.Qxe5#
      • 2.Qh7#
    • 1...exf4
      • 2.Qd5#
  • Tries
    • 1.Bc1?
      • 1...exf4
        • 2.Qd5#
      • 1...Bf3
        • 2.Qg6#
        • 2.Qxe5#
        • 2.Qh7#
      • 1...Bg2!
    • 1.Qh3?
      • threat
        • 2.Qd3#
      • 1...Bf3
        • 2.Qh7#
      • 1...exf4!
  • Keys
    • 1.Qg4!
      • threat
        • 2.f5#
      • 1...exf4
        • 2.Qxf4#
      • 1...Bf3
        • 2.Qg6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • P(c);OGATE,XP(C)::QAB1(D)
  • Tries
    • Try
      • B(A);
      • Vars
        • P(c);OGATE,XP(C)::QAB1(D)
      • Refutation
        • B(a);
    • Try
      • Q(D);
      • Threat
        • QAB1(D)
      • Vars
        • B(a);SBLOCK::QAB(D)
      • Refutation
        • P(c);XP(C)
  • Actual
    • Q(D);
    • Threat
      • QAR(D)+P(C)
    • Vars
      • P(c);OGATE,P_SPINP(c),XP(C)::QAR1(D),XP(c)
      • B(a);SBLOCK::QAB(D)
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