MESON Chess Problem Database

Problem Display
PID: 93285 (8/kq2R3/b1QB4/8/8/8/8/2K5 w - - 0 1)

Tuxen, Harri Viggo

Skakbladet, 1962

8/kq2R3/b1QB4/8/8/8/8/2K5

#2

4 + 3

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bf1
      • 2.Qxb7#
    • 1...Be2
      • 2.Qxb7#
    • 1...Bd3
      • 2.Qxb7#
    • 1...Bc4
      • 2.Qxb7#
    • 1...Bb5
      • 2.Qxb7#
  • Tries
    • 1.Bc5+?
      • 1...Ka8
        • 2.Re8#
      • 1...Kb8!
    • 1.Rxb7+?
      • 1...Ka8
        • 2.Qxa6#
        • 2.Qc8#
      • 1...Bxb7!
  • Keys
    • 1.Qc8!
      • threat
        • 2.Bc5#
      • 1...Kb6
        • 2.Qc5#
      • 1...Qxe7
        • 2.Qb8#
      • 1...Bf1
        • 2.Qxb7#
      • 1...Be2
        • 2.Qxb7#
      • 1...Bd3
        • 2.Qxb7#
      • 1...Bc4
        • 2.Qxb7#
      • 1...Bb5
        • 2.Qxb7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • B(a);N_GUARD::QAR1(B),XQ(c)
  • Tries
    • Try
      • B(C);CHECK
      • Vars
        • K(b);P-FLIGHT::R(D)
      • Refutation
        • K(b);N_SPINQ(c),S_FLIGHT
    • Try
      • R(D);CHECK,XQ(c)
      • Refutation
        • B(a);XR(D)
  • Actual
    • Q(B);
    • Threat
      • B(C)
    • Vars
      • K(b);N_SPINQ(c),S_FLIGHT::QAB1(B)
      • Q(c);N_SPINQ(c),XR(D)::QAB1(B)
      • B(a);N_GUARD::QAR1(B),XQ(c)
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