MESON Chess Problem Database

Problem Display
PID: 133774 (b7/8/8/1Q3N1K/2B5/4Bk2/8/8 w - - 0 1)

Antipov, Viacheslav Pavlovich

Novgorodskaya pravda, 1985

b7/8/8/1Q3N1K/2B5/4Bk2/8/8

#2

5 + 2

SOLUTION

  • SOUND
  • Sets
    • 1...Bd5
      • 2.Bxd5#
      • 2.Qxd5#
    • 1...Bc6
      • 2.Qxc6#
    • 1...Bb7
      • 2.Qxb7#
  • Tries
    • 1.Qe5?
      • threat
        • 2.Sh4#
      • 1...Be4
        • 2.Qg3#
      • 1...Kg2!
  • Keys
    • 1.Bf1!
      • 1...Ke4
        • 2.Bg2#
      • 1...Be4
        • 2.Qe2#
      • 1...Bd5
        • 2.Qxd5#
      • 1...Bc6
        • 2.Qxc6#
      • 1...Bb7
        • 2.Qxb7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • B(b);N_GUARD::QAB(C),XB(b)
  • Tries
    • Try
      • Q(C);
      • Threat
        • S(D)
      • Vars
        • B(b);SBLOCK::QAR1(C)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • B(B);
    • Vars
      • K(a);S_FLIGHT::B(B)
      • B(b);SBLOCK::QAB1(C)
      • B(b);N_GUARD::QAB(C),XB(b)
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