MESON Chess Problem Database

Problem Display
PID: 136009 (6B1/4P2p/2r1RB1K/5kpn/8/4P2P/8/8 w - - 0 1)

Kopyl, Valery Volodimirovich

Mat Plus, 2009

6B1/4P2p/2r1RB1K/5kpn/8/4P2P/8/8

#2

7 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Sf4
      • 2.e4#
  • Tries
    • 1.e8Q?
      • threat
        • 2.Bxh7#
      • 1...Rxe6
        • 2.Qxe6#
      • 1...Sxf6
        • 2.Re5#
      • 1...Sf4
        • 2.e4#
      • 1...Rc7!
  • Keys
    • 1.e8S!
      • threat
        • 2.Re5#
      • 1...Rxe6
        • 2.Bxh7#
      • 1...Sxf6
        • 2.Sg7#
      • 1...Rc5
        • 2.Sd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • S(c);SBLOCK::P(A)
  • Tries
    • Try
      • P(F);
      • Threat
        • B(G),XP(e)
      • Vars
        • R(d);OGATE,P_PINB(D),XR(C)::QAB1(F),XR(d)
        • S(c);SBLOCK,XB(D)::R1(C)
        • S(c);SBLOCK::P(A)
      • Refutation
        • R(d);
  • Actual
    • P(F);
    • Threat
      • R1(C)
    • Vars
      • R(d);P_PINB(D),SBLOCK,XR(C)::B(G),XP(e)
      • S(c);N_GUARD,XB(D)::S(F)
      • R(d);N_GUARD::S(F)
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