MESON Chess Problem Database

Problem Display
PID: 272533 (8/4p3/4K1R1/8/4NB1p/7P/4BNP1/6k1 w - - 0 1)

Peretyaka, E

Shakhmatnaya kompozitsiya, 1998

8/4p3/4K1R1/8/4NB1p/7P/4BNP1/6k1

#2

8 + 3

SOLUTION

  • SOUND
  • Tries
    • 1.Sg4?
      • 1...Kxg2
        • 2.Sgf2#
      • 1...Kh1!
    • 1.Sg5?
      • 1...Kxg2
        • 2.Sge4#
      • 1...Kxf2!
    • 1.Bg4?
      • 1...Kxg2
        • 2.Be2#
      • 1...Kf1!
    • 1.Bg3?
      • 1...Kxg2
        • 2.Bf4#
        • 2.Be5#
        • 2.Bd6#
        • 2.Bc7#
        • 2.Bb8#
      • 1...hxg3!
    • 1.Bg5?
      • 1...Kxg2
        • 2.Bf4#
      • 1...Kh2!
    • 1.Rf6?
      • 1...Kxg2
        • 2.Rg6#
      • 1...exf6!
    • 1.g3?
      • threat
        • 2.gxh4#
      • 1...Kg2
        • 2.gxh4#
      • 1...Kh2
        • 2.gxh4#
      • 1...hxg3!
  • Keys
    • 1.Rh6!
      • 1...Kxg2
        • 2.Rg6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(B);
      • Vars
        • K(a);P-FLIGHT,XP(C)::R(H)+S(B)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • S(E);
      • Vars
        • K(a);P-FLIGHT,XP(C)::R(H)+S(E)
      • Refutation
        • K(a);S_FLIGHT,XS(B)
    • Try
      • B(A);
      • Vars
        • K(a);OGATEB,P-FLIGHT,XP(C)::R(H)+B(A)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • B(F);
      • Refutation
        • P(b);XB(F)
    • Try
      • B(F);
      • Vars
        • K(a);OGATEB,P-FLIGHT,XP(C)::R(H)+B(F)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(H);
      • Vars
        • K(a);OGATEB,P-FLIGHT,XP(C)::R(H)
      • Refutation
        • P(c);XR(H)
    • Try
      • P(C);
      • Threat
        • R(H)+P(C),XP(b)
      • Vars
        • K(a);P-FLIGHT::R(H)+P(C),XP(b)
        • K(a);S_FLIGHT::B(F)+P(C),XP(b)
      • Refutation
        • P(b);P_SPINP(b),XP(C)
  • Actual
    • R(H);
    • Vars
      • K(a);OGATEB,P-FLIGHT,XP(C)::R(H)
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