MESON Chess Problem Database

Problem Display
PID: 78589 (4n3/2P5/2p5/3k2N1/8/2K3Q1/8/8 w - - 0 1)

Babizki, Stanislaw

Borisovski novosti, 1987

4n3/2P5/2p5/3k2N1/8/2K3Q1/8/8

#2

4 + 3

SOLUTION

  • SOUND
  • Tries
    • 1.Qe3?
      • threat
        • 2.Qd4#
      • 1...c5
        • 2.Qe6#
      • 1...Kd6!
  • Keys
    • 1.c8S!
      • 1...Kc5
        • 2.Qe5#
      • 1...Sd6
        • 2.Qxd6#
      • 1...Sf6
        • 2.Qd6#
      • 1...Sc7
        • 2.Qd6#
      • 1...Sg7
        • 2.Qd6#
      • 1...c5
        • 2.Se7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(B);
      • Threat
        • QAR1(B)
      • Vars
        • P(b);SBLOCK::QAB1(B)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • P(D);
    • Vars
      • K(a);P-FLIGHT::QAR2(B)
      • S(c);N_GUARD::QAR1(B),XS(c)
      • S(c);N_GUARD::QAR1(B)
      • P(b);SBLOCK::S(D)
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