MESON Chess Problem Database

Problem Display
PID: 143860 (8/b1n5/5kNK/3p1pNp/3p1pP1/5R2/BR2P3/B7 w - - 0 1)

Mortensen, Jan Robert (aka 'Adamas')

Thema Danicum, 1976

8/b1n5/5kNK/3p1pNp/3p1pP1/5R2/BR2P3/B7

#2

9 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...d3
      • 2.Rb6#
    • 1...fxg4
      • 2.Rxf4#
  • Tries
    • 1.Rb6+?
      • 1...Se6
        • 2.Bxd4#
        • 2.Rxe6#
      • 1...Bxb6!
  • Keys
    • 1.e4!
      • threat
        • 2.e5#
      • 1...dxe4
        • 2.Sh7#
      • 1...fxe4
        • 2.Rxf4#
      • 1...fxg4
        • 2.Rxf4#
      • 1...dxe4 ep
        • 2.Rb6#
      • 1...fxe4 ep
        • 2.Rxf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • P(a);::B(A)+R(C),DCHECK
    • P(d);OGATEB,P_SPINP(b),XP(F)::R(E),XP(b)
  • Tries
    • Try
      • R(C);CHECK,P_PINP(a)
      • Refutation
        • B(g);XR(C)
  • Actual
    • P(D);
    • Threat
      • P(D)
    • Vars
      • P(c);XP(D)::S(G)
      • P(d);OGATEB,P_SPINP(b),XP(D)::R(E),XP(b)
      • P(d);OGATEB,P_SPINP(b),XP(F)::R(E),XP(b)
      • P(a);EP,XP(D)::B(A)+R(C),DCHECK
      • P(b);EP,OGATE,P_SPINP(d),XP(D)::R1(E),XP(d)
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