MESON Chess Problem Database

Problem Display
PID: 94979 (3B1n2/8/7p/5p2/6k1/3Q4/8/5K2 w - - 0 1)

Dikusarov, Andrey Nikolayovich

Cherkasskaya Pravda, 1989

3B1n2/8/7p/5p2/6k1/3Q4/8/5K2

#2

3 + 4

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kh5
      • 2.Qxf5#
  • Tries
    • 1.Kf2?
      • threat
        • 2.Qf3#
      • 1...Kf4
        • 2.Qd4#
      • 1...Kh5
        • 2.Qxf5#
      • 1...f4!
  • Keys
    • 1.Kg2!
      • threat
        • 2.Qf3#
      • 1...Kf4
        • 2.Qd4#
      • 1...Kh5
        • 2.Qxf5#
      • 1...f4
        • 2.Qh3#

FEATURES

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