MESON Chess Problem Database

Problem Display
PID: 267606 (1n1Q4/2pP1Pb1/R1rkbpRN/5P2/1P2P3/1pB1p3/1P6/2K5 w - - 0 1)

Ivanov, Vadim Aleksandrovich

The Problemist, 1998

1n1Q4/2pP1Pb1/R1rkbpRN/5P2/1P2P3/1pB1p3/1P6/2K5

#2

12 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Bd5
      • 2.e5#
    • 1...Bxf7
      • 2.Sxf7#
    • 1...Bh8
      • 2.f8Q#
      • 2.f8B#
  • Tries
    • 1.Qxc7+?
      • 1...Ke7
        • 2.d8Q#
      • 1...Kxc7!
  • Keys
    • 1.Qe8!
      • threat
        • 2.Qxe6#
      • 1...Bxf5
        • 2.Sxf5#
      • 1...Bxd7
        • 2.Qe5#
      • 1...Bxf7
        • 2.Sxf7#
      • 1...Bc4
        • 2.Be5#
      • 1...Bd5
        • 2.e5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • B(e);P_SPINP(f),SBLOCK::P(E)
    • B(e);P_SPINP(f),XP(K)::S(I),XB(e)
    • B(h);N_GUARD::P=Q
  • Tries
    • Try
      • Q(L);CHECK,XP(g)
      • Vars
        • K(d);N_SPINR(c),S_FLIGHT::P=Q
      • Refutation
        • K(d);N_SPINR(c),S_FLIGHT,XQ(L)
  • Actual
    • Q(L);
    • Threat
      • QAR1(L),XB(e)
    • Vars
      • B(e);P_SPINP(f),XP(F)::S(I),XB(e)
      • B(e);OGATE,P_SPINP(f),SBLOCK,XP(J)::QAB1(L)
      • B(e);P_SPINP(f),XP(K)::S(I),XB(e)
      • B(e);N_PINB(C),P_SPINP(f)::B(C)
      • B(e);P_SPINP(f),SBLOCK::P(E)
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