MESON Chess Problem Database

Problem Display
PID: 71695 (BBrR1Rq1/1r6/8/3P4/Q1N1kP1N/2Pp1p2/8/Kn6 w - - 0 1)

Bruch, Wieland

Die Schwalbe, 2006

BBrR1Rq1/1r6/8/3P4/Q1N1kP1N/2Pp1p2/8/Kn6

#2

11 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...d2
      • 2.Qc2#
  • Tries
    • 1.Qe8+?
      • 1...Qe6
        • 2.Qxe6#
      • 1...Re7!
  • Keys
    • 1.Sf5!
      • threat
        • 2.Sd2#
      • 1...Qxf8
        • 2.Sg3#
      • 1...Rxc4
        • 2.Qxc4#
      • 1...Rxd8
        • 2.Sb6#
      • 1...Qf7
        • 2.Sg3#
      • 1...Rf7
        • 2.Scd6#
      • 1...d2
        • 2.Qc2#
      • 1...Rb4
        • 2.Sfd6#
      • 1...Sd2
        • 2.Sxd2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
    • P(b);OGATEB::QAB(C)
  • Tries
    • Try
      • Q(C);CHECK
      • Vars
        • Q(g);N_GUARD,P_SPINQ(g)::QAR2(C),XQ(g)
      • Refutation
        • R(e);P_SPINR(e)
  • Actual
    • S(F);
    • Threat
      • QAR(C)+S(D),DCHECK
    • Vars
      • Q(g);N_GUARD,XR(K)::S(F)
      • R(f);OGATE,P_SPINR(f),XS(D)::QAR2(C),XR(f)
      • R(f);N_GUARD,XR(J)::QAR(C)+S(D)
      • Q(g);N_GUARD::S(F)
      • R(e);::QAR(C)+S(D),DCHECK
      • P(b);OGATEB::QAB(C)
      • R(e);::S(F)
      • S(a);::QAR(C)+S(D),DCHECK,XS(a)
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