MESON Chess Problem Database

Problem Display
PID: 91807 (8/p5K1/6RN/2pkp3/3p3p/NP1R1P2/2pQ1bp1/8 w - - 0 1)

Gebura, Stanislaw

Het Belgisch Schaakbord (L'Echiquier Belge), 2002

8/p5K1/6RN/2pkp3/3p3p/NP1R1P2/2pQ1bp1/8

#2

8 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...c4
      • 2.Qa5#
    • 1...e4
      • 2.Qg5#
  • Tries
    • 1.Sb5?
      • threat
        • 2.Sc3#
        • 2.Sc7#
        • 2.Rd6#
      • 1...e4
        • 2.Qg5#
      • 1...c1Q
        • 2.Sc7#
        • 2.Rd6#
      • 1...c1R
        • 2.Sc7#
        • 2.Rd6#
      • 1...g1Q
        • 2.Sc3#
        • 2.Sc7#
      • 1...g1R
        • 2.Sc3#
        • 2.Sc7#
      • 1...c4!
    • 1.Sf5?
      • threat
        • 2.Se7#
        • 2.Rd6#
      • 1...c4
        • 2.Qa5#
      • 1...g1Q
        • 2.Se7#
      • 1...g1R
        • 2.Se7#
      • 1...e4!
    • 1.Rxd4+?
      • 1...cxd4
        • 2.Qa5#
      • 1...exd4
        • 2.Qg5#
      • 1...Bxd4!
    • 1.Qxc2?
      • threat
        • 2.Qc4#
      • 1...c4
        • 2.Qxc4#
      • 1...e4!
  • Keys
    • 1.Sg8!
      • threat
        • 2.Se7#
      • 1...c4
        • 2.Qa5#
      • 1...e4
        • 2.Qg5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • P(f);OGATEB::QAR(A)
    • P(h);OGATEB::QAR(A)
  • Tries
    • Try
      • S(B);
      • Threat
        • DUALS(3)
      • Vars
        • P(h);OGATEB::QAR(A)
      • Refutation
        • P(f);
    • Try
      • S(G);
      • Threat
        • DUALS(2)
      • Vars
        • P(f);OGATEB::QAR(A)
        • P(c);P_PINR(F)::S(G)
      • Refutation
        • P(h);
    • Try
      • R(D);CHECK,XP(d)
      • Vars
        • P(f);P_SPINP(f),SBLOCK,S_CUTB(b),S_CUTP(h),XR(D)::QAR(A)
        • P(h);P_SPINP(h),SBLOCK,S_CUTB(b),S_CUTP(f),XR(D)::QAR(A)
      • Refutation
        • B(b);P_SPINB(b),XR(D)
    • Try
      • Q(A);XP(a)
      • Threat
        • QAB1(A)
      • Vars
        • P(f);::QAB1(A),XP(f)
      • Refutation
        • P(h);
  • Actual
    • S(G);
    • Threat
      • S(G)
    • Vars
      • P(f);OGATEB::QAR(A)
      • P(h);OGATEB::QAR(A)
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