MESON Chess Problem Database

Problem Display
PID: 224300 (K4B2/8/4p3/8/3kp3/4N1P1/2Pn4/6Q1 w - - 0 1)

Wheeler, Charles Henry

Brownson's Chess Journal, 1887

K4B2/8/4p3/8/3kp3/4N1P1/2Pn4/6Q1

#2

6 + 4

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kc3
      • 2.Qa1#
    • 1...Ke5
      • 2.Qa1#
  • Tries
    • 1.Bc5+?
      • 1...Kc3
        • 2.Qa1#
      • 1...Ke5
        • 2.Qa1#
      • 1...Kxc5!
  • Keys
    • 1.Qd1!
      • 1...Kc3
        • 2.Qa1#
      • 1...Kxe3
        • 2.Bc5#
      • 1...Ke5
        • 2.Qa1#
      • 1...e5
        • 2.Qxd2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(b);S_FLIGHT::QAB(A)
  • Tries
    • Try
      • B(F);CHECK
      • Vars
        • K(b);S_FLIGHT::QAB(A)
      • Refutation
        • K(b);S_FLIGHT,XB(F)
  • Actual
    • Q(A);P_PINS(a)
    • Vars
      • K(b);N_SPINS(a),S_FLIGHT::QAB(A)
      • K(b);N_SPINS(a),S_FLIGHT,XS(C)::B(F)
      • P(d);SBLOCK::QAR2(A),XS(a)
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