MESON Chess Problem Database

Problem Display
PID: 28730 (8/1K6/8/3Bk3/4P3/B7/8/2Q3b1 w - - 0 1)

Ryall, Isaac

CCA Ty., 1874

8/1K6/8/3Bk3/4P3/B7/8/2Q3b1

#2

5 + 2

3248 Miniatures canadiennes 2000

SOLUTION

  • SOUND
  • Sets
    • 1...Bd4
      • 2.Qg5#
  • Tries
    • 1.Bb2+?
      • 1...Kd6
        • 2.Qc7#
      • 1...Bd4!
  • Keys
    • 1.Bd6+!
      • 1...Kd4
        • 2.Qd2#
      • 1...Kxd6
        • 2.Qc7#
      • 1...Kf6
        • 2.Qh6#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • B(a);SBLOCK::QAR2(A)
  • Tries
    • Try
      • B(B);CHECK
      • Vars
        • K(b);S_FLIGHT::QAB1(A)
      • Refutation
        • B(a);P_SPINB(a)
  • Actual
    • B(B);CHECK
    • Vars
      • K(b);S_FLIGHT::QAR2(A)
      • K(b);S_FLIGHT,XB(B)::QAB1(A)
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