MESON Chess Problem Database

Problem Display
PID: 154948 (2Qbk3/4rq2/8/4N2B/8/B7/8/K7 w - - 0 1)

Weiss, Berthold

Good Companions (May Meredith Ty.), 1916

2Qbk3/4rq2/8/4N2B/8/B7/8/K7

#2

5 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...Rxe5
      • 2.Qc6#
    • 1...Re6
      • 2.Bxf7#
      • 2.Qd7#
    • 1...Rd7
      • 2.Qxd7#
  • Tries
    • 1.Qc6+?
      • 1...Rd7
        • 2.Bxf7#
        • 2.Qxd7#
      • 1...Kf8!
  • Keys
    • 1.Qe6!
      • 1...Kf8
        • 2.Qxf7#
      • 1...Qxh5
        • 2.Qg8#
      • 1...Rxe6
        • 2.Bxf7#
      • 1...Ba5
        • 2.Qxe7#
      • 1...Bb6
        • 2.Qxe7#
      • 1...Bc7
        • 2.Qxe7#
      • 1...Qg6
        • 2.Qg8#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 2
  • Sets
    • R(a);N_GUARD,XS(C)::QAB(E)
    • R(a);N_GUARD::QAB1(E),XR(a)
  • Tries
    • Try
      • Q(E);CHECK,N_PINB(c)
      • Refutation
        • K(d);N_SPINQ(b),P-FLIGHT,P_SPINR(a)
  • Actual
    • Q(E);N_PINB(c),P_PINR(a)
    • Vars
      • K(d);N_SPINQ(b),P-FLIGHT::QAR1(E),XQ(b)
      • Q(b);N_SPINQ(b),OGATE,XB(D)::QAR2(E)
      • R(a);N_SPINR(a),XQ(E)::B(D),XQ(b)
      • B(c);N_GUARD::QAR1(E),XR(a)
      • Q(b);OGATE::QAR2(E)
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