MESON Chess Problem Database

Problem Display
PID: 223180 (8/8/8/2p3B1/2pk1p2/2N5/5p2/QRK2B2 w - - 0 1)

Keller, Charles

Toledo Daily Blade, 1886

8/8/8/2p3B1/2pk1p2/2N5/5p2/QRK2B2

#2

6 + 5

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Qa6?
      • 1...Kxc3
        • 2.Bf6#
        • 2.Qxc4#
        • 2.Qa1#
        • 2.Qf6#
      • 1...Ke5
        • 2.Qf6#
      • 1...f3
        • 2.Qf6#
      • 1...Ke3!
  • Keys
    • 1.Qa8!
      • 1...Kxc3
        • 2.Bf6#
        • 2.Qa1#
        • 2.Qh8#
      • 1...Ke3
        • 2.Qe4#
      • 1...Ke5
        • 2.Qd5#
      • 1...f3
        • 2.Qh8#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);
      • Vars
        • K(c);S_FLIGHT::QAB1(A)
        • P(d);::QAB(A)
      • Refutation
        • K(c);P_SPINP(d),S_FLIGHT
  • Actual
    • Q(A);
    • Vars
      • K(c);P_SPINP(d),S_FLIGHT::QAR1(A)
      • K(c);S_FLIGHT::QAR1(A)
      • P(d);::QAB(A)
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