MESON Chess Problem Database

Problem Display
PID: 162345 (8/Q1p5/1n6/1NN5/n1k5/KRP1R3/8/6B1 w - - 0 1)

Svitek, Miroslav

Sachmatija, 2009

8/Q1p5/1n6/1NN5/n1k5/KRP1R3/8/6B1

#2

8 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...Sd5
      • 2.Re4#
  • Tries
    • 1.Sxc7?
      • threat
        • 2.Re4#
      • 1...Sxc3
        • 2.Rexc3#
      • 1...Sxc5
        • 2.Rb4#
      • 1...Kxc5!
    • 1.Re5?
      • threat
        • 2.Rb4#
      • 1...Sd5
        • 2.Re4#
      • 1...Sxc5!
    • 1.Qb7?
      • threat
        • 2.Re4#
      • 1...Kxc5
        • 2.Re4#
      • 1...Sxc3
        • 2.Rexc3#
      • 1...Sxc5
        • 2.Rb4#
      • 1...c6!
  • Keys
    • 1.Rd3!
      • threat
        • 2.Rb4#
      • 1...Sxc5
        • 2.Rd4#
      • 1...Sd5
        • 2.Rd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • S(c);SBLOCK::R(E)
  • Tries
    • Try
      • S(F);XP(d)
      • Threat
        • R(E)
      • Vars
        • S(a);OGATE,XP(D)::R1(E),XS(a)
        • S(a);SBLOCK,XS(G)::R1(C)
      • Refutation
        • K(b);P-FLIGHT,P_SPINS(c),XS(G)
    • Try
      • R(E);
      • Threat
        • R1(C)
      • Vars
        • S(c);SBLOCK::R(E)
      • Refutation
        • S(a);XS(G)
    • Try
      • Q(H);
      • Threat
        • R(E)
      • Vars
        • K(b);P-FLIGHT,XS(G)::B(A)+R(E)
        • S(a);OGATE,XP(D)::R1(E),XS(a)
        • S(a);SBLOCK,XS(G)::R1(C)
      • Refutation
        • P(d);
  • Actual
    • R(E);
    • Threat
      • R1(C)
    • Vars
      • S(a);SBLOCK,XS(G)::R1(E)
      • S(c);::R1(E)
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