MESON Chess Problem Database

Problem Display
PID: 81538 (B7/2K1P3/QP3P2/3Np3/1P6/2P2k1P/nR3p1B/2n2N2 w - - 0 1)

Iwanow, Eugeniusz

Die Schwalbe, 2008

B7/2K1P3/QP3P2/3Np3/1P6/2P2k1P/nR3p1B/2n2N2

#2

13 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Kg2
      • 2.Sf4#
    • 1...Ke4
      • 2.Sde3#
  • Tries
    • 1.Rxf2+?
      • 1...Ke4
        • 2.Sd2#
        • 2.Sg3#
        • 2.Sde3#
        • 2.Qc4#
      • 1...Kxf2!
    • 1.Qe2+?
      • 1...Kg2
        • 2.Sf4#
      • 1...Sxe2!
    • 1.Qd3+?
      • 1...Kg2
        • 2.Sf4#
      • 1...Sxd3!
    • 1.Qc4?
      • threat
        • 2.Qg4#
      • 1...Kg2
        • 2.Sf4#
      • 1...e4!
  • Keys
    • 1.Qc8!
      • threat
        • 2.Qg4#
      • 1...Kg2
        • 2.Sde3#
      • 1...Ke4
        • 2.Sf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(d);P_SPINP(c),S_FLIGHT::B(M)+S(G),DCHECK
    • K(d);S_FLIGHT::B(M)+S(G)
  • Tries
    • Try
      • R(B);CHECK,XP(c)
      • Refutation
        • K(d);P-FLIGHT,XR(B)
    • Try
      • Q(H);CHECK
      • Vars
        • K(d);P_SPINP(c),S_FLIGHT::B(M)+S(G),DCHECK
      • Refutation
        • S(a);XQ(H)
    • Try
      • Q(H);CHECK
      • Vars
        • K(d);P_SPINP(c),S_FLIGHT::B(M)+S(G),DCHECK
      • Refutation
        • S(a);XQ(H)
    • Try
      • Q(H);
      • Threat
        • QAB1(H)
      • Vars
        • K(d);P_SPINP(c),S_FLIGHT::B(M)+S(G),DCHECK
      • Refutation
        • P(e);
  • Actual
    • Q(H);
    • Threat
      • QAB1(H)
    • Vars
      • K(d);P_SPINP(c),S_FLIGHT::B(M)+S(G),DCHECK
      • K(d);S_FLIGHT::B(M)+S(G)
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Developed and maintained by Brian Stephenson.
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