MESON Chess Problem Database

Problem Display
PID: 255151 (8/3p4/1P1p4/2pk2B1/K1N3P1/4P3/4P3/Q2B4 w - - 0 1)

Paskalev, Ivan

Zadachi i Etyudi, 2006

8/3p4/1P1p4/2pk2B1/K1N3P1/4P3/4P3/Q2B4

#2

9 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...Kxc4
      • 2.Bb3#
  • Tries
    • 1.Qf6?
      • 1...Kxc4
        • 2.Bb3#
      • 1...Ke4
        • 2.Qf3#
        • 2.Qf5#
      • 1...Kc6!
    • 1.Qb1?
      • 1...Kxc4
        • 2.Qd3#
        • 2.Qb3#
      • 1...Ke6
        • 2.Qf5#
      • 1...Kc6!
  • Keys
    • 1.Qh8!
      • 1...Kxc4
        • 2.Bb3#
      • 1...Ke4
        • 2.Qh1#
      • 1...Kc6
        • 2.Qa8#
      • 1...Ke6
        • 2.Qg8#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(b);OGATEB,S_FLIGHT,XS(F)::B(B)
  • Tries
    • Try
      • Q(A);
      • Vars
        • K(b);OGATEB,S_FLIGHT,XS(F)::B(B)
      • Refutation
        • K(b);P_SPINP(c),S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(b);N_GUARD,S_FLIGHT::QAB1(A)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • Q(A);
    • Vars
      • K(b);OGATEB,S_FLIGHT,XS(F)::B(B)
      • K(b);N_GUARD,S_FLIGHT::QAB(A)
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