MESON Chess Problem Database

Problem Display
PID: 239451 (5K1B/8/2np4/bBpN1p1R/3Nkpp1/4P1qR/8/2n2Q2 w - - 0 1)

Popovski, Aleksandr

Variantim, 2007

5K1B/8/2np4/bBpN1p1R/3Nkpp1/4P1qR/8/2n2Q2

#2

9 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Kxd5
      • 2.Bxc6#
    • 1...fxe3
      • 2.Qxf5#
  • Tries
    • 1.Sf6+?
      • 1...Ke5
        • 2.Rxf5#
      • 1...Kxe3!
    • 1.Bd3+?
      • 1...Kxd5
        • 2.e4#
      • 1...Sxd3!
    • 1.Qd3+?
      • 1...Kxd5
        • 2.Bc4#
        • 2.Bxc6#
        • 2.e4#
      • 1...Sxd3!
    • 1.Qxf4+?
      • 1...Kxd5
        • 2.e4#
      • 1...Qxf4!
  • Keys
    • 1.Sxf5!
      • threat
        • 2.Sxd6#
      • 1...Kxd5
        • 2.Qc4#
      • 1...fxe3
        • 2.Sxg3#
      • 1...Bc7
        • 2.Sc3#
      • 1...Se5
        • 2.Sf6#
      • 1...f3
        • 2.Sxg3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(c);OGATEB,P_SPINP(h),S_FLIGHT,XS(F)::B(E),XS(i)
    • P(d);OGATE,XP(B)::QAB1(A),XP(h)
  • Tries
    • Try
      • S(F);CHECK
      • Vars
        • K(c);P-FLIGHT,P_SPINP(h)::R1(G),XP(h)
      • Refutation
        • K(c);P-FLIGHT,P_SPINQ(b),XP(B)
    • Try
      • B(E);CHECK
      • Vars
        • K(c);OGATE,P_SPINP(h),S_FLIGHT,XS(F)::P(B)
      • Refutation
        • S(a);XB(E)
    • Try
      • Q(A);CHECK
      • Refutation
        • S(a);XQ(A)
    • Try
      • Q(A);CHECK,XP(d)
      • Vars
        • K(c);OGATE,P_SPINP(h),S_FLIGHT,XS(F)::P(B)
      • Refutation
        • Q(b);XQ(A)
  • Actual
    • S(D);XP(h)
    • Threat
      • S(D),XP(j)
    • Vars
      • K(c);S_FLIGHT,XS(F)::QAB1(A)
      • P(d);N_GUARD,XP(B)::S(D),XQ(b)
      • B(f);N_GUARD::S(F)
      • S(i);SBLOCK::S(F)
      • P(d);N_GUARD::S(D),XQ(b)
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