MESON Chess Problem Database

Problem Display
PID: 152141 (7n/3n1pp1/Q1N2k2/3PR3/7b/6p1/2B2pK1/8 w - - 0 1)

Weiss, Berthold

Good Companions (April), 1915

7n/3n1pp1/Q1N2k2/3PR3/7b/6p1/2B2pK1/8

#2

6 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Sg6
      • 2.Rf5#
    • 1...f1Q+
      • 2.Qxf1#
    • 1...f1S
      • 2.Qxf1#
    • 1...f1B+
      • 2.Qxf1#
    • 1...f1R
      • 2.Qxf1#
  • Tries
    • 1.Sb8+?
      • 1...Sb6
        • 2.Sd7#
      • 1...Kxe5!
  • Keys
    • 1.Qa1!
      • 1...f1Q+
        • 2.Qxf1#
      • 1...f1B+
        • 2.Qxf1#
      • 1...Sxe5
        • 2.Qxe5#
      • 1...g5
        • 2.Re6#
      • 1...g6
        • 2.Rf5#
      • 1...f1S
        • 2.Qxf1#
      • 1...f1R
        • 2.Qxf1#
      • 1...Sb6
        • 2.Rh5#
      • 1...Bg5
        • 2.Re6#
      • 1...Sc5
        • 2.Rh5#
      • 1...Sb8
        • 2.Rh5#
      • 1...Sf8
        • 2.Rh5#
      • 1...Sg6
        • 2.Rf5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • S(h);SBLOCK::R1(D)
    • P(a);CHECK,OGATEB::QAR(E),XQ(a)
    • P(a);OGATEB::QAR(E),XS(a)
    • P(a);CHECK,OGATEB::QAR(E),XB(a)
    • P(a);OGATEB::QAR(E),XR(a)
  • Tries
    • Try
      • S(F);CHECK
      • Vars
        • S(e);P_SPINS(e)::S(F)
      • Refutation
        • K(d);S_FLIGHT,XR(D)
  • Actual
    • Q(E);
    • Vars
      • P(a);CHECK,OGATEB::QAR(E),XQ(a)
      • P(a);CHECK,OGATEB::QAR(E),XB(a)
      • S(e);OGATE,P_SPINS(e),XR(D)::QAB1(E),XS(e)
      • P(g);SBLOCK::QAB(E)+R(D),DCHECK
      • P(a);OGATEB::QAR(E),XS(a)
      • P(a);OGATEB::QAR(E),XR(a)
      • S(e);N_GUARD::QAB(E)+R(D)
      • B(c);SBLOCK::QAB(E)+R(D),DCHECK
      • S(h);SBLOCK::QAB(E)+R(D),DCHECK
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Developed and maintained by Brian Stephenson.
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