MESON Chess Problem Database

Problem Display
PID: 15129 (8/8/1Q6/8/8/3KB3/1b6/1k6 w - - 0 1)

Speckmann, Werner

Deutsche Schachzeitung, 1980

8/8/1Q6/8/8/3KB3/1b6/1k6

#2

3 + 2

3295 Einfuhrung in die Welt des Schachproblem 1984
5454 Near Snap 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Bd4?
      • threat
        • 2.Qxb2#
      • 1...Ka1
        • 2.Qxb2#
      • 1...Ka2
        • 2.Qxb2#
      • 1...Kc1!
  • Keys
    • 1.Bc1!
      • threat
        • 2.Qxb2#
      • 1...Ka1
        • 2.Qxb2#
      • 1...Kxc1
        • 2.Qg1#
      • 1...Ka2
        • 2.Qxb2#

Anticipated by 120764(0000), 123028(0000), 21885(1921), 76846(1947)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(B);
      • Threat
        • QAR1(C),XB(b)
      • Vars
        • K(a);P-FLIGHT::QAB1(C),XB(b)
        • K(a);N_SPINB(b),S_FLIGHT::QAR1(C),XB(b)
      • Refutation
        • K(a);N_SPINB(b),P-FLIGHT
  • Actual
    • B(B);
    • Threat
      • QAR1(C),XB(b)
    • Vars
      • K(a);N_SPINB(b),P-FLIGHT::QAB1(C),XB(b)
      • K(a);N_SPINB(b),OGATEB,P-FLIGHT,XB(B)::QAR(C)
      • K(a);N_SPINB(b),S_FLIGHT::QAR1(C),XB(b)
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