MESON Chess Problem Database

Problem Display
PID: 106577 (N6Q/p3n1B1/p7/N2k1P2/8/K4P2/8/8 w - - 0 1)

Didenko, Vladimir Vasilovich

Praca, 1992

N6Q/p3n1B1/p7/N2k1P2/8/K4P2/8/8

#2

7 + 4

6490 yacpdb 2009
5454 Near Snap 2022

SOLUTION

  • SOUND
  • Tries
    • 1.Bd4?
      • threat
        • 2.Qe5#
        • 2.Qd8#
      • 1...Kd6
        • 2.Qd8#
      • 1...Sxf5
        • 2.Qe5#
      • 1...Sg6
        • 2.Qd8#
      • 1...Sc8
        • 2.Qe5#
      • 1...Sg8
        • 2.Qe5#
      • 1...Sc6!
  • Keys
    • 1.Bf8!
      • 1...Kc5
        • 2.Qe5#
      • 1...Kd6
        • 2.Qd4#
      • 1...Sxf5
        • 2.Sc7#
      • 1...Sc6
        • 2.Sc7#
      • 1...Sg6
        • 2.Sc7#
      • 1...Sc8
        • 2.Sc7#
      • 1...Sg8
        • 2.Sc7#

Anticipated by 119976(1904)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(E);
      • Threat
        • DUALS(2)
      • Vars
        • K(a);P-FLIGHT::QAR2(G)
        • S(d);XP(D)::QAR1(G)
        • S(d);::QAR(G)
        • S(d);::QAR1(G)
      • Refutation
        • S(d);
  • Actual
    • B(E);
    • Vars
      • K(a);P-FLIGHT,P_SPINS(d)::QAR2(G)
      • S(d);XP(D)::S(F)
      • S(d);::S(F)
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