MESON Chess Problem Database

Problem Display
PID: 8176 (3BK3/8/5pkP/2P3N1/3N3R/1p6/1P2PP2/3RQ3 w - - 0 1)

Mochalkin, Oleksandr Viktorovich

The Problemist, 1995

3BK3/8/5pkP/2P3N1/3N3R/1p6/1P2PP2/3RQ3

#2

12 + 3

5418 FIDE Album (1995-1997) (Annexe) 2004

SOLUTION

  • SOUND
  • Tries
    • 1.Sge6?
      • 1...f5
        • 2.Sf8#
      • 1...Kh7!
    • 1.Sh7?
      • 1...f5
        • 2.Sf8#
      • 1...Kxh7!
    • 1.Ra1?
      • 1...fxg5
        • 2.Qb1#
      • 1...f5
        • 2.Ra6#
      • 1...Kxg5!
    • 1.Qd2?
      • 1...fxg5
        • 2.Qd3#
      • 1...f5!
    • 1.Qc3?
      • 1...Kxg5
        • 2.Qg3#
      • 1...fxg5
        • 2.Qd3#
      • 1...f5!
  • Keys
    • 1.Qh1!
      • 1...Kxg5
        • 2.Rg1#
      • 1...fxg5
        • 2.Qe4#
      • 1...f5
        • 2.Qc6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(I);
      • Vars
        • P(b);::S(I)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • S(I);
      • Vars
        • P(b);::S(I)
      • Refutation
        • K(c);S_FLIGHT,XS(I)
    • Try
      • R(A);
      • Vars
        • P(b);N_GUARD,XS(I)::QAB(B)
        • P(b);OGATEB::R(A)
      • Refutation
        • K(c);P-FLIGHT,P_SPINP(b),XS(I)
    • Try
      • Q(B);
      • Vars
        • P(b);N_GUARD,XS(I)::QAB(B)
      • Refutation
        • P(b);
    • Try
      • Q(B);
      • Vars
        • K(c);OGATEB,P-FLIGHT,P_SPINP(b),XS(I)::QAR2(B)
        • P(b);N_GUARD,XS(I)::QAB(B)
      • Refutation
        • P(b);
  • Actual
    • Q(B);
    • Vars
      • K(c);OGATEB,P-FLIGHT,P_SPINP(b),XS(I)::R(A)
      • P(b);N_GUARD,XS(I)::QAB(B)
      • P(b);OGATEB::QAR(B)
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