MESON Chess Problem Database

Problem Display
PID: 79901 (Rn4Bb/5pk1/5N1p/4Q2p/7K/8/8/8 w - - 0 1)

Popovski, Aleksandr

Variantim, 2008

Rn4Bb/5pk1/5N1p/4Q2p/7K/8/8/8

#2

5 + 6

SOLUTION

  • SOUND
  • Tries
    • 1.Sxh5+?
      • 1...Kg6
        • 2.Sf4#
      • 1...Kf8
        • 2.Rxb8#
      • 1...Kxg8!
    • 1.Sd7+?
      • 1...Kg6
        • 2.Sf8#
      • 1...f6
        • 2.Qg3#
      • 1...Kxg8!
    • 1.Sh7+?
      • 1...Kg6
        • 2.Sf8#
      • 1...f6
        • 2.Qg3#
      • 1...Kxg8!
    • 1.Qd6?
      • 1...Sa6
        • 2.Sxh5#
      • 1...Sc6
        • 2.Sxh5#
      • 1...Sd7
        • 2.Sxh5#
      • 1...Kg6!
    • 1.Qf5?
      • 1...Sa6
        • 2.Sxh5#
      • 1...Sc6
        • 2.Sxh5#
      • 1...Sd7
        • 2.Sxh5#
      • 1...Kf8!
    • 1.Qxh5?
      • threat
        • 2.Qxf7#
      • 1...Kf8
        • 2.Qxf7#
      • 1...Kxf6!
  • Keys
    • 1.Bh7!
      • 1...Kf8
        • 2.Sd7#
      • 1...Sa6
        • 2.Rg8#
      • 1...Sc6
        • 2.Rg8#
      • 1...Sd7
        • 2.Rg8#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);CHECK,XP(a)
      • Vars
        • K(d);P-FLIGHT::S(C)
        • K(d);P_SPINS(e),S_FLIGHT::R(D),XS(e)
      • Refutation
        • K(d);P-FLIGHT,P_SPINS(e),XB(E)
    • Try
      • S(C);CHECK
      • Vars
        • K(d);P-FLIGHT::S(C)
        • P(c);P_SPINP(c)::QAR(B)
      • Refutation
        • K(d);P-FLIGHT,P_SPINS(e),XB(E)
    • Try
      • S(C);CHECK
      • Vars
        • K(d);P-FLIGHT::S(C)
        • P(c);P_SPINP(c)::QAR(B)
      • Refutation
        • K(d);P-FLIGHT,P_SPINS(e),XB(E)
    • Try
      • Q(B);
      • Vars
        • S(e);::S(C),XP(a)
      • Refutation
        • K(d);P-FLIGHT
    • Try
      • Q(B);
      • Vars
        • S(e);::S(C),XP(a)
      • Refutation
        • K(d);P_SPINS(e),S_FLIGHT
    • Try
      • Q(B);XP(a)
      • Threat
        • QAR1(B),XP(c)
      • Vars
        • K(d);P_SPINS(e),S_FLIGHT::QAR1(B),XP(c)
      • Refutation
        • K(d);S_FLIGHT,XS(C)
  • Actual
    • B(E);
    • Vars
      • K(d);P_SPINS(e),S_FLIGHT::S(C)
      • S(e);OGATE::R1(D)
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