MESON Chess Problem Database

Problem Display
PID: 267216 (8/6N1/b1pKNp2/3R3B/r2Pk3/2r5/3RpPp1/2n1n3 w - - 0 1)

Asbury-Smith, Peter Clement

The Problemist, 1955

8/6N1/b1pKNp2/3R3B/r2Pk3/2r5/3RpPp1/2n1n3

#2

8 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Rxd4
      • 2.R2xd4#
      • 2.R5xd4#
    • 1...Scd3
      • 2.Rxe2#
    • 1...f5
      • 2.Re5#
  • Tries
    • 1.Sc5+?
      • 1...Kf4
        • 2.Sge6#
        • 2.Rf5#
      • 1...Rxc5!
    • 1.Sg5+?
      • 1...Kf4
        • 2.S7e6#
        • 2.Rf5#
      • 1...fxg5!
  • Keys
    • 1.Rf5!
      • threat
        • 2.Rf4#
      • 1...Rxd4+
        • 2.Rxd4#
      • 1...Rf3
        • 2.Sc5#
      • 1...Scd3
        • 2.Rxe2#
      • 1...Sed3
        • 2.Bf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • S(a);N_GUARD,SBLOCK,S_CUTB(h),S_CUTR(e)::R(A),XP(c)
    • P(j);N_GUARD::R1(D)
  • Tries
    • Try
      • S(G);CHECK
      • Refutation
        • R(e);XS(G)
    • Try
      • S(G);CHECK
      • Refutation
        • P(j);XS(G)
  • Actual
    • R(D);
    • Threat
      • R1(D)
    • Vars
      • R(f);CHECK,OGATE,XP(C)::R1(A),XR(f)
      • R(e);N_GUARD::S(G)
      • S(a);N_GUARD,SBLOCK,S_CUTB(h),S_CUTR(e)::R(A),XP(c)
      • S(b);N_GUARD,S_CUTR(e)::B(E)
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