MESON Chess Problem Database

Problem Display
PID: 86918 (Q4n2/3pp3/3NpRp1/3Nk3/1P2P3/2R1B3/7b/7K w - - 0 1)

Storozhenko, Ivan Ivanovich

Wola Gulowska, 1996

Q4n2/3pp3/3NpRp1/3Nk3/1P2P3/2R1B3/7b/7K

#2

9 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kxd6
      • 2.Qb8#
  • Tries
    • 1.Bd4+?
      • 1...Kxd6
        • 2.Qa6#
        • 2.Qb8#
      • 1...Kxd4!
    • 1.Bf4+?
      • 1...Kd4
        • 2.Qa7#
      • 1...Bxf4!
    • 1.Qa1?
      • threat
        • 2.Rc6#
      • 1...exd5
        • 2.Rc5#
      • 1...exd6
        • 2.Rc4#
      • 1...Kxd6!
  • Keys
    • 1.Rc4!
      • threat
        • 2.Sf7#
      • 1...Kxd6
        • 2.Qb8#
      • 1...exd5
        • 2.Bd4#
      • 1...exd6
        • 2.Qa1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(b);OGATEB,P_SPINP(c),S_FLIGHT,XS(G)::QAB(I)
  • Tries
    • Try
      • B(C);CHECK
      • Refutation
        • K(b);S_FLIGHT,XB(C)
    • Try
      • B(C);CHECK
      • Vars
        • K(b);S_FLIGHT::QAB(I)
      • Refutation
        • B(a);XB(C)
    • Try
      • Q(I);
      • Threat
        • QAB(I)+R(B)
      • Vars
        • P(c);XS(F)::QAB(I)+R(B)
        • P(f);SBLOCK,XS(G)::QAB(I)+R(B)
      • Refutation
        • K(b);P_SPINP(c),S_FLIGHT,XS(G)
  • Actual
    • R(B);
    • Threat
      • S(G)
    • Vars
      • K(b);OGATEB,P_SPINP(c),S_FLIGHT,XS(G)::QAB(I)
      • P(c);XS(F)::B(C)
      • P(f);SBLOCK,XS(G)::QAB(I)
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