MESON Chess Problem Database

Problem Display
PID: 85363 (8/4pK1B/7Q/3pk3/8/8/8/4B3 w - - 0 1)

Zheltonozhko, Vladimir Ivanovich

Bron MT, 1990

8/4pK1B/7Q/3pk3/8/8/8/4B3

#2

4 + 3

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Kxe7?
      • threat
        • 2.Qe3#
        • 2.Qf6#
      • 1...d4
        • 2.Qg5#
        • 2.Qd6#
      • 1...Kd4!
    • 1.Bd2?
      • threat
        • 2.Qf4#
      • 1...d4
        • 2.Qe6#
      • 1...Kd4!
    • 1.Qg7+?
      • 1...Kf4
        • 2.Qg3#
      • 1...Kd6!
  • Keys
    • 1.Bb4!
      • threat
        • 2.Qe3#
      • 1...Kd4
        • 2.Qf4#
      • 1...d4
        • 2.Qg5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(C);P-FLIGHT,XP(c)
      • Threat
        • DUALS(2)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • B(A);
      • Threat
        • QAB1(B)
      • Vars
        • P(a);SBLOCK::QAR1(B)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(B);CHECK
      • Vars
        • K(b);S_FLIGHT::QAB1(B)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • B(A);
    • Threat
      • QAR2(B)
    • Vars
      • K(b);S_FLIGHT::QAR2(B)
      • P(a);SBLOCK::QAR2(B)
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