MESON Chess Problem Database

Problem Display
PID: 213906 (8/4R3/N1pp4/2NkP3/8/3K4/8/8 w - - 0 1)

Balashov, Evgeny Fedorovich

Praca, 1995

8/4R3/N1pp4/2NkP3/8/3K4/8/8

#2

5 + 3

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...dxc5
      • 2.Sc7#
    • 1...dxe5
      • 2.Rd7#
  • Tries
    • 1.Kc3?
      • 1...dxe5
        • 2.Rd7#
      • 1...dxc5!
    • 1.Se4?
      • threat
        • 2.Sc3#
        • 2.Sf6#
        • 2.Sb4#
        • 2.Sc7#
      • 1...dxe5
        • 2.Sb4#
        • 2.Sc7#
      • 1...c5!
    • 1.Re6?
      • 1...dxc5
        • 2.Sc7#
      • 1...dxe5!
  • Keys
    • 1.Re8!
      • 1...dxc5
        • 2.Sc7#
      • 1...dxe5
        • 2.Rd8#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 1
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • P(c);SBLOCK,XS(B)::S(D)
    • P(c);OGATEB,SBLOCK,XP(C)::R(E)
  • Tries
    • Try
      • K(A);P-FLIGHT
      • Vars
        • P(c);OGATEB,SBLOCK,XP(C)::R(E)
      • Refutation
        • P(c);XS(B)
    • Try
      • S(B);
      • Threat
        • DUALS(4)
      • Refutation
        • P(b);
    • Try
      • R(E);
      • Vars
        • P(c);SBLOCK,XS(B)::S(D)
      • Refutation
        • P(c);XP(C)
  • Actual
    • R(E);
    • Vars
      • P(c);SBLOCK,XS(B)::S(D)
      • P(c);OGATEB,SBLOCK,XP(C)::R(E)
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