MESON Chess Problem Database

Problem Display
PID: 136491 (1b6/8/3P2B1/3k4/1PRPR3/2K2nN1/8/1bB4Q w - - 0 1)

Bantysh, Nikolai Ivanovich

The Problemist, 2010

1b6/8/3P2B1/3k4/1PRPR3/2K2nN1/8/1bB4Q

#2

10 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...Bxd6
      • 2.Bf7#
  • Tries
    • 1.Bf4?
      • threat
        • 2.Bf7#
        • 2.Rc5#
      • 1...Bxe4
        • 2.Bf7#
      • 1...Bxd6
        • 2.Bf7#
      • 1...Sxd4
        • 2.Rc5#
      • 1...Ba7
        • 2.Bf7#
      • 1...Sg5
        • 2.Rc5#
      • 1...Se5!
  • Keys
    • 1.Sf5!
      • threat
        • 2.Re5#
      • 1...Kxe4
        • 2.Se7#
      • 1...Bxe4
        • 2.Bf7#
      • 1...Bxd6
        • 2.Se3#
      • 1...Sxd4
        • 2.Rc5#
      • 1...Se5
        • 2.Rxe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • B(d);SBLOCK,XP(I)::B(J)
  • Tries
    • Try
      • B(A);
      • Threat
        • DUALS(2)
      • Vars
        • B(a);XR(H)::B(J)
        • B(d);XP(I)::B(J)
        • S(b);XP(G)::R1(F)
        • B(d);::B(J)
        • S(b);::R1(F)
      • Refutation
        • S(b);
  • Actual
    • S(D);
    • Threat
      • R1(H)
    • Vars
      • K(c);P_SPINS(b),S_FLIGHT,XR(H)::B(J)+S(D)
      • B(a);SBLOCK,XR(H)::B(J)
      • B(d);SBLOCK,XP(I)::S(D)
      • S(b);XP(G)::R1(F)
      • S(b);::QAB(B)+R(H),DCHECK,XS(b)
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