MESON Chess Problem Database

Problem Display
PID: 171073 (N6K/8/1B6/1k3B2/7Q/8/8/N7 w - - 0 1)

Hoffmann, Klaus Peter

Rhein-Neckar-Zeitung, 2002

N6K/8/1B6/1k3B2/7Q/8/8/N7

#2

6 + 1

6490 yacpdb 2018
5454 Near Snap 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Qd4?
      • 1...Kc6
        • 2.Qd7#
      • 1...Ka6!
  • Keys
    • 1.Qe7!
      • 1...Ka4
        • 2.Bd7#
      • 1...Kc4
        • 2.Qc5#
      • 1...Ka6
        • 2.Bd3#
      • 1...Kc6
        • 2.Qd7#

Anticipated by 2475(0000), 223485(1926), 140936(1980/I), 164208(1988), 157940(1993)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(B);
      • Vars
        • K(a);S_FLIGHT::QAB1(B)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(B);
    • Vars
      • K(a);S_FLIGHT::B(C)
      • K(a);S_FLIGHT::QAR1(B)
      • K(a);S_FLIGHT::QAB1(B)
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