MESON Chess Problem Database

Problem Display
PID: 159175 (5rbk/8/5pRK/8/8/8/8/B7 w - - 0 1)

Andersen, Idon Bruno Hovedskou

Aalborg Stiftstidende, 1951

5rbk/8/5pRK/8/8/8/8/B7

#2

3 + 4

15148 Sadier Collection 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Ra8
      • 2.Bxf6#
    • 1...Rb8
      • 2.Bxf6#
    • 1...Rc8
      • 2.Bxf6#
    • 1...Rd8
      • 2.Bxf6#
    • 1...Re8
      • 2.Bxf6#
    • 1...Bf7
      • 2.Bxf6#
  • Keys
    • 1.Rxf6!
      • threat
        • 2.Rf7#
        • 2.Rxf8#
      • 1...Rxf6+
        • 2.Bxf6#
      • 1...Ba2
        • 2.Rxf8#
      • 1...Bb3
        • 2.Rxf8#
      • 1...Bc4
        • 2.Rxf8#
      • 1...Bd5
        • 2.Rxf8#
      • 1...Be6
        • 2.Rxf8#
      • 1...Bf7
        • 2.Rg6#
      • 1...Bh7
        • 2.Rxf8#
      • 1...Rf7
        • 2.Rxf7#
      • 1...Ra8
        • 2.Ra6#
      • 1...Rb8
        • 2.Rb6#
      • 1...Rc8
        • 2.Rc6#
      • 1...Rd8
        • 2.Rd6#
      • 1...Re8
        • 2.Re6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 6
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • R(b);N_GUARD,SBLOCK::B(A),XP(a)
    • R(b);N_GUARD::B(A),XP(a)
    • B(c);S_CUTR(b)::B(A),XP(a)
  • Actual
    • R(B);XP(a)
    • Threat
      • DUALS(2)
    • Vars
      • R(b);CHECK,OGATE,P_SPINR(b),XR(B)::B(A),XR(b)
      • B(c);::B(A)+R(B),DCHECK,XR(b)
      • B(c);S_CUTR(b)::B(A)+R(B)
      • R(b);::B(A)+R(B),XR(b)
      • R(b);N_GUARD::B(A)+R(B)
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