MESON Chess Problem Database

Problem Display
PID: 16392 (8/8/8/3B4/3K4/4NN2/Q3bk1P/8 w - - 0 1)

Wenman, Francis Percival (aka Percy Wenman)

Fifty Two-Move Problems, 1940

8/8/8/3B4/3K4/4NN2/Q3bk1P/8

#2

6 + 2

5454 Near Snap 2013

SOLUTION

  • SOUND
  • Tries
    • 1.Sg1?
      • 1...Ke1
        • 2.Qxe2#
      • 1...Kxg1!
    • 1.Qb1?
      • threat
        • 2.Qe1#
        • 2.Qg1#
      • 1...Bxf3
        • 2.Qf1#
      • 1...Bf1
        • 2.Qe1#
        • 2.Qxf1#
      • 1...Bd3
        • 2.Qe1#
      • 1...Bc4
        • 2.Qe1#
      • 1...Bb5
        • 2.Qe1#
      • 1...Ba6
        • 2.Qe1#
      • 1...Bd1!
    • 1.Qa1?
      • threat
        • 2.Qe1#
        • 2.Qg1#
      • 1...Bxf3
        • 2.Qf1#
      • 1...Bf1
        • 2.Qe1#
        • 2.Qxf1#
      • 1...Bd3
        • 2.Qe1#
      • 1...Bc4
        • 2.Qe1#
      • 1...Bb5
        • 2.Qe1#
      • 1...Ba6
        • 2.Qe1#
      • 1...Bd1!
  • Keys
    • 1.Bg8!
      • 1...Kxf3
        • 2.Qf7#

Anticipated by 175146(1902), 175240(1902), 63480(1909)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);
      • Vars
        • K(b);N_SPINB(a),S_FLIGHT::QAR1(A),XB(a)
      • Refutation
        • K(b);N_SPINB(a),S_FLIGHT,XS(D)
    • Try
      • Q(A);N_PINB(a)
      • Threat
        • DUALS(2)
      • Vars
        • B(a);N_GUARD,XS(D)::QAR1(A)
        • B(a);::QAB1(A)
      • Refutation
        • B(a);
    • Try
      • Q(A);N_PINB(a)
      • Threat
        • DUALS(2)
      • Vars
        • B(a);N_GUARD,XS(D)::QAR1(A)
        • B(a);::QAB1(A)
      • Refutation
        • B(a);
  • Actual
    • B(F);
    • Vars
      • K(b);N_SPINB(a),OGATEB,P-FLIGHT,XS(D)::QAR(A)
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