MESON Chess Problem Database

Problem Display
PID: 275202 (1Kbr3N/ppRp4/8/r7/4kb1R/3pNp2/B4P2/B7 w - - 0 1)

Mackenzie, A

British Chess Magazine, 1935

1Kbr3N/ppRp4/8/r7/4kb1R/3pNp2/B4P2/B7

#2

8 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Ra3
      • 2.Bd5#
    • 1...Ra4
      • 2.Bd5#
    • 1...Rd5
      • 2.Bxd5#
    • 1...Re5
      • 2.Rc4#
    • 1...Ra6
      • 2.Bd5#
    • 1...d2
      • 2.Bb1#
    • 1...b5
      • 2.Bd5#
    • 1...d6
      • 2.Rc4#
  • Keys
    • 1.Sf7!
      • threat
        • 2.Sd6#
      • 1...d2
        • 2.Bb1#
      • 1...Rd5
        • 2.Bxd5#
      • 1...Ra6
        • 2.Sg5#
        • 2.Bd5#
      • 1...d5
        • 2.Sg5#
      • 1...d6
        • 2.Rc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 5
  • Sets
    • R(e);N_GUARD::B(B)
    • R(e);N_GUARD::B(B),XR(e)
    • R(e);N_PINR(F)::R(F)
    • P(a);OGATEB::B(B)
    • P(g);S_CUTR(e)::B(B)
    • P(h);N_PINR(F)::R(F)
  • Actual
    • S(H);
    • Threat
      • S(H)
    • Vars
      • P(a);OGATEB::B(B)
      • R(e);N_GUARD::B(B),XR(e)
      • P(h);S_CUTR(e)::S(H)
      • P(h);N_PINR(F)::R(F)
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