MESON Chess Problem Database

Problem Display
PID: 232475 (1B1r4/3q4/8/8/4Bp2/Q2R2Pk/8/7K w - - 0 1)

Dikusarov, Andrey Nikolayovich

Freie Presse, 2010

1B1r4/3q4/8/8/4Bp2/Q2R2Pk/8/7K

#2

6 + 4

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Qa4
      • 2.Bf5#
    • 1...Qg4
      • 2.Bg2#
    • 1...Qf5
      • 2.Bxf5#
    • 1...Qe8
      • 2.Bf5#
    • 1...Qd4
      • 2.Bf5#
    • 1...Qd6
      • 2.Bf5#
    • 1...Qa7
      • 2.Bf5#
    • 1...Qc7
      • 2.Bf5#
    • 1...Qe7
      • 2.Bf5#
  • Keys
    • 1.Qe7!
      • threat
        • 2.Qh4#
      • 1...Kg4
        • 2.Qh4#
      • 1...Qxe7
        • 2.Bf5#
      • 1...fxg3
        • 2.Rxg3#
      • 1...Qg4
        • 2.Bg2#
      • 1...Rh8
        • 2.Qxd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 7
  • Sets
    • Q(c);N_GUARD::B(E)
    • Q(c);SBLOCK::B(E)
    • Q(c);N_GUARD::B(E),XQ(c)
  • Actual
    • Q(B);
    • Threat
      • QAR1(B)
    • Vars
      • K(a);S_FLIGHT::QAR1(B)
      • Q(c);N_GUARD,XQ(B)::B(E)
      • P(b);OGATE,P_SPINP(b),XP(D)::R1(C),XP(b)
      • Q(c);SBLOCK::B(E)
      • R(d);N_GUARD::QAB(B),XQ(c)
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