MESON Chess Problem Database

Problem Display
PID: 7769 (8/8/2pN4/3k4/5Q2/2K5/5B2/8 w - - 0 1)

Chernushko, Mikhail Aleksandrovich

Smena, 1993

8/8/2pN4/3k4/5Q2/2K5/5B2/8

#2

4 + 2

2838 Fun with Chess Miniatures 1996
5454 Near Snap 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Bc5?
      • threat
        • 2.Qf5#
      • 1...Kxc5
        • 2.Qd4#
      • 1...Ke6!
    • 1.Qf7+?
      • 1...Ke5
        • 2.Bg3#
      • 1...Kxd6!
  • Keys
    • 1.Bg3!
      • threat
        • 2.Qe5#
        • 2.Qc4#
        • 2.Qf5#
      • 1...Kc5
        • 2.Qd4#
      • 1...Ke6
        • 2.Qf7#
      • 1...c5
        • 2.Qe4#

This anticipates 173130(2000)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(A);
      • Threat
        • QAR2(C)
      • Vars
        • K(a);P-FLIGHT,XB(A)::QAB1(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(C);CHECK
      • Vars
        • K(a);P-FLIGHT::B(A)
      • Refutation
        • K(a);P-FLIGHT,XS(D)
  • Actual
    • B(A);
    • Threat
      • DUALS(3)
    • Vars
      • K(a);P-FLIGHT::QAB1(C)
      • K(a);S_FLIGHT::QAB1(C)
      • P(b);SBLOCK::QAB1(C)
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