MESON Chess Problem Database

Problem Display
PID: 266031 (6K1/8/4P1p1/R2r1k2/2p1RbpP/2B2bq1/5Q2/1B6 w - - 0 1)

Sammelius, Carel Johan Robert

Probleemblad, 1950

6K1/8/4P1p1/R2r1k2/2p1RbpP/2B2bq1/5Q2/1B6

#2

8 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Bd1
      • 2.Rxd5#
    • 1...Bh1
      • 2.Rxd5#
    • 1...Be2
      • 2.Rxd5#
    • 1...Bg2
      • 2.Rxd5#
  • Keys
    • 1.Kf7!
      • threat
        • 2.Re5#
      • 1...Bxe4
        • 2.Rxd5#
      • 1...Re5
        • 2.Rexe5#
      • 1...Bc1
        • 2.Rxc4#
      • 1...Bd2
        • 2.Rxc4#
      • 1...Be3
        • 2.Rxc4#
      • 1...Be5
        • 2.Rd4#
      • 1...Bg5
        • 2.Rxc4#
      • 1...Bd6
        • 2.Rxc4#
      • 1...Bh6
        • 2.Rxc4#
      • 1...Bc7
        • 2.Rxc4#
      • 1...Bb8
        • 2.Rxc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 11
    • REMOVED MATES = 4
  • Sets
    • B(a);P_SPINB(d)::R(F),XR(f)
  • Actual
    • K(H);S_FLIGHT
    • Threat
      • B(A)+R(D),DCHECK
    • Vars
      • B(a);P_SPINB(a),S_CUTB(d),XR(D)::R(F),XR(f)
      • R(f);::B(A)+R(D),DCHECK,XR(f)
      • B(d);P_SPINB(a)::B(A)+R(D),XP(c)
      • B(d);N_SPINR(f),P_SPINB(a),SBLOCK::B(A)+R(D)
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