MESON Chess Problem Database

Problem Display
PID: 172293 (3K4/3p1p2/4k3/6Q1/2P5/3P4/8/8 w - - 0 1)

Andreev, Aleksandr Grigorevich

Vecherni Krasnodar, 1996

3K4/3p1p2/4k3/6Q1/2P5/3P4/8/8

#2

4 + 3

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Kd6
      • 2.Qd5#
    • 1...f5
      • 2.Qe7#
    • 1...f6
      • 2.Qd5#
  • Tries
    • 1.Qf5+?
      • 1...Kd6
        • 2.Qd5#
      • 1...Kxf5!
  • Keys
    • 1.d4!
      • threat
        • 2.Qe5#
      • 1...Kd6
        • 2.Qf6#
        • 2.Qd5#
      • 1...f5
        • 2.Qe7#
        • 2.Qg6#
      • 1...f6
        • 2.Qd5#
      • 1...d6
        • 2.d5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • K(a);P-FLIGHT::QAR1(C)
    • P(c);SBLOCK::QAR1(C)
    • P(c);SBLOCK::QAB1(C)
  • Tries
    • Try
      • Q(C);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR1(C)
      • Refutation
        • K(a);S_FLIGHT,XQ(C)
  • Actual
    • P(A);
    • Threat
      • QAR1(C)
    • Vars
      • P(c);SBLOCK::QAB1(C)
      • P(b);SBLOCK::P(A)
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