MESON Chess Problem Database

Problem Display
PID: 10486 (1B5q/1Q6/K3k3/5NR1/8/8/8/b7 w - - 0 1)

Jenssen, August

Dagbladet, 1965

1B5q/1Q6/K3k3/5NR1/8/8/8/b7

#2

5 + 3

5395 Schach fur Nussknacker 1994

SOLUTION

  • SOUND
  • Sets
    • 1...Kf6
      • 2.Qe7#
  • Tries
    • 1.Qd7+?
      • 1...Kf6
        • 2.Qe7#
      • 1...Kxd7!
  • Keys
    • 1.Rg6+!
      • 1...Kxf5
        • 2.Qb1#
      • 1...Qf6
        • 2.Sg7#
      • 1...Bf6
        • 2.Sd4#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • K(b);P-FLIGHT::QAB1(D)
  • Tries
    • Try
      • Q(D);CHECK
      • Vars
        • K(b);P-FLIGHT::QAB1(D)
      • Refutation
        • K(b);S_FLIGHT,XQ(D)
  • Actual
    • R(B);CHECK
    • Vars
      • K(b);S_FLIGHT,XS(A)::QAB(D)
      • Q(c);P_SPINQ(c)::S(A)
      • B(a);P_SPINB(a)::S(A)
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