MESON Chess Problem Database

Problem Display
PID: 229381 (4Kb2/5p2/4k3/8/1N5Q/3N4/8/8 w - - 0 1)

Dikusarov, Andrey Nikolayovich

Sachova skladba, 2004

4Kb2/5p2/4k3/8/1N5Q/3N4/8/8

#2

4 + 3

6490 yacpdb 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Qe4+?
      • 1...Kd6
        • 2.Qc6#
        • 2.Qe5#
      • 1...Kf6!
    • 1.Qf4?
      • threat
        • 2.Qe5#
      • 1...Bd6
        • 2.Qxf7#
      • 1...Bg7
        • 2.Sc5#
      • 1...f6!
  • Keys
    • 1.Qg4+!
      • 1...Kd6
        • 2.Qd7#
      • 1...Kf6
        • 2.Sd5#
      • 1...f5
        • 2.Qg6#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(C);CHECK
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(C);
      • Threat
        • QAR1(C)
      • Vars
        • B(c);SBLOCK::QAB1(C),XP(b)
        • B(c);N_GUARD::S(A)
      • Refutation
        • P(b);
  • Actual
    • Q(C);CHECK
    • Vars
      • K(a);OGATE,P-FLIGHT::QAR1(C)
      • K(a);P-FLIGHT::S(B)
      • P(b);N_GUARD,P_SPINP(b)::QAR2(C)
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