MESON Chess Problem Database

Problem Display
PID: 245162 (6K1/6p1/6pk/7P/7Q/8/8/7N w - - 0 1)

Parkhomenko, Nikolai A

Smena (Moscow), 1993

6K1/6p1/6pk/7P/7Q/8/8/7N

#2

4 + 3

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Qf4+?
      • 1...Kxh5
        • 2.Sg3#
      • 1...g5!
    • 1.Qg4?
      • threat
        • 2.Qxg6#
      • 1...gxh5
        • 2.Qxg7#
      • 1...g5!
  • Keys
    • 1.Sg3!
      • 1...gxh5
        • 2.Qxh5#
      • 1...g5
        • 2.Sf5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(B);CHECK
      • Vars
        • K(b);P-FLIGHT,XP(C)::S(A)
      • Refutation
        • P(a);P_SPINP(a)
    • Try
      • Q(B);
      • Threat
        • QAR1(B),XP(a)
      • Vars
        • P(a);OGATE,SBLOCK,XP(C)::QAB1(B),XP(c)
      • Refutation
        • P(a);
  • Actual
    • S(A);
    • Vars
      • P(a);OGATE,P_SPINP(a),XP(C)::QAR1(B),XP(a)
      • P(a);N_GUARD::S(A)
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