MESON Chess Problem Database

Problem Display
PID: 79260 (8/3p2K1/4k3/2Q5/B6P/8/8/8 w - - 0 1)

Amirov, Talip Khasanovich

Tuvinskaya Pravda, 1960

8/3p2K1/4k3/2Q5/B6P/8/8/8

#2

4 + 2

5454 Near Snap 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Qd5+?
      • 1...Ke7
        • 2.Qxd7#
      • 1...Kxd5!
  • Keys
    • 1.Qd4!
      • 1...Kf5
        • 2.Bxd7#
      • 1...Ke7
        • 2.Qxd7#
      • 1...d5
        • 2.Qf6#
      • 1...d6
        • 2.Qe4#

Anticipated by 17254(1926), 227260(1928), 110501(1955)

This anticipates 80515(1967)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(C);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR1(C),XP(b)
      • Refutation
        • K(a);S_FLIGHT,XQ(C)
  • Actual
    • Q(C);
    • Vars
      • K(a);S_FLIGHT::B(A),XP(b)
      • K(a);P-FLIGHT::QAR1(C),XP(b)
      • P(b);SBLOCK::QAR1(C)
      • P(b);SBLOCK::QAR2(C)
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