MESON Chess Problem Database

Problem Display
PID: 275717 (n7/3p2Qn/B2k4/Kp1PN1N1/8/8/8/3R2B1 w - - 0 1)

Kisis, Imants J

Springaren, 1993

n7/3p2Qn/B2k4/Kp1PN1N1/8/8/8/3R2B1

#2

8 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Sc7
      • 2.Se4#
  • Tries
    • 1.Sc6?
      • threat
        • 2.Qe5#
      • 1...Kc7
        • 2.Bh2#
      • 1...dxc6
        • 2.Se4#
      • 1...Sf6!
    • 1.Sef7+?
      • 1...Ke7
        • 2.Re1#
      • 1...Kc7!
    • 1.Bc5+?
      • 1...Kxc5
        • 2.Se4#
      • 1...Kc7!
    • 1.Qf8+?
      • 1...Kxe5
        • 2.Bh2#
      • 1...Kc7
        • 2.Rc1#
        • 2.d6#
      • 1...Sxf8!
  • Keys
    • 1.Bh2!
      • threat
        • 2.Sxd7#
      • 1...Kc5
        • 2.Se4#
      • 1...Kc7
        • 2.Sc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • S(e);SBLOCK::S(F)
  • Tries
    • Try
      • S(E);
      • Threat
        • QAB1(H)
      • Vars
        • K(b);N_GUARD,P_SPINP(c),S_FLIGHT::B(B)
        • P(c);XS(E)::S(F)
      • Refutation
        • S(d);
    • Try
      • S(E);CHECK
      • Vars
        • K(b);N_GUARD,S_FLIGHT::R(A)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • B(B);CHECK
      • Vars
        • K(b);N_GUARD,S_FLIGHT,XB(B)::S(F)
      • Refutation
        • K(b);P_SPINP(c),S_FLIGHT
    • Try
      • Q(H);CHECK
      • Vars
        • K(b);N_GUARD,S_CUTS(d),S_FLIGHT,XS(E)::B(B)
      • Refutation
        • S(d);XQ(H)
  • Actual
    • B(B);
    • Threat
      • B(B)+S(E),XP(c)
    • Vars
      • K(b);N_GUARD,S_FLIGHT::S(F)
      • K(b);N_GUARD,P_SPINP(c),S_FLIGHT::B(B)+S(E)
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