MESON Chess Problem Database

Problem Display
PID: 85782 (8/5p1Q/8/7b/3B4/3N4/3K4/1k6 w - - 0 1)

Speckmann, Werner

The Problemist, 1990

8/5p1Q/8/7b/3B4/3N4/3K4/1k6

#2

4 + 3

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Sc1+?
      • 1...f5
        • 2.Qxf5#
        • 2.Qb7#
      • 1...Bg6!
  • Keys
    • 1.Sb4+!
      • 1...Bg6
        • 2.Qh1#
      • 1...f5
        • 2.Qxf5#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(B);CHECK
      • Refutation
        • B(b);P_SPINB(b)
  • Actual
    • S(B);CHECK
    • Vars
      • B(b);OGATE,P_SPINB(b)::QAR(D)
      • P(c);P_SPINP(c)::QAB(D),XP(c)
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