MESON Chess Problem Database

Problem Display
PID: 86967 (4B3/8/6b1/3Q2pk/8/7P/6K1/8 w - - 0 1)

Koshelenko, Valery Fedotovich

Pypa, Volodimir Iosifovich

Bospor, 1994

4B3/8/6b1/3Q2pk/8/7P/6K1/8

#2

4 + 3

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Qe4?
      • 1...Kh6
        • 2.Qxg6#
      • 1...Bxe8
        • 2.Qh7#
      • 1...Bf7
        • 2.Qh7#
      • 1...g4!
  • Keys
    • 1.Qf5!
      • 1...Kh4
        • 2.Qg4#
      • 1...Kh6
        • 2.Qxg6#
      • 1...Bxe8
        • 2.Qh7#
      • 1...Bf7
        • 2.Qh7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(C);N_PINP(a)
      • Vars
        • K(b);N_SPINB(c),P-FLIGHT::QAR1(C),XB(c)
        • B(c);N_SPINB(c),OGATE,XB(D)::QAR2(C)
        • B(c);OGATE::QAR2(C)
      • Refutation
        • P(a);
  • Actual
    • Q(C);
    • Vars
      • K(b);N_SPINB(c),N_SPINP(a),P-FLIGHT::QAR1(C)
      • K(b);N_SPINB(c),N_SPINP(a),P-FLIGHT::QAR1(C),XB(c)
      • B(c);N_SPINB(c),OGATE,XB(D)::QAR2(C)
      • B(c);OGATE::QAR2(C)
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