MESON Chess Problem Database

Problem Display
PID: 269499 (6kB/rp4P1/r4pP1/p7/b7/4N2B/8/4R2K w - - 0 1)

Mackenzie, A

British Chess Magazine, 1934

6kB/rp4P1/r4pP1/p7/b7/4N2B/8/4R2K

#2

7 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Re6
      • 2.Bxe6#
  • Tries
    • 1.Sf5?
      • threat
        • 2.Sh6#
        • 2.Se7#
      • 1...Re6
        • 2.Sh6#
      • 1...b5
        • 2.Sh6#
        • 2.Re8#
      • 1...b6
        • 2.Sh6#
      • 1...Bc6+!
  • Keys
    • 1.Sd5!
      • threat
        • 2.Se7#
      • 1...Re6
        • 2.Bxe6#
      • 1...Bc6
        • 2.Be6#
      • 1...b5
        • 2.Re8#
      • 1...b6
        • 2.Sxf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • R(c);N_GUARD::B(D),XR(c)
  • Tries
    • Try
      • S(C);
      • Threat
        • DUALS(2)
      • Vars
        • R(c);::S(C)
        • P(f);::S(C)
      • Refutation
        • B(a);CHECK
  • Actual
    • S(C);
    • Threat
      • S(C)
    • Vars
      • R(c);N_GUARD::B(D),XR(c)
      • B(a);P_PINS(C),S_CUTR(c)::B(D)
      • P(f);S_CUTB(a)::R(A)
      • P(f);S_CUTR(c)::S(C),XP(d)
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