MESON Chess Problem Database

Problem Display
PID: 133605 (8/2Q1R2K/8/1N1kb3/r3r2n/8/2B1R3/q7 w - - 0 1)

Rice, John Michael

5th Comm., British Chess Magazine, 1968

8/2Q1R2K/8/1N1kb3/r3r2n/8/2B1R3/q7

#2

6 + 6

5174 Chess Problem Spectrum 2003

SOLUTION

  • SOUND
  • Sets
    • 1...Ra2
      • 2.Bxe4#
    • 1...Ra3
      • 2.Bxe4#
    • 1...Ra5
      • 2.Bxe4#
    • 1...Ra6
      • 2.Bxe4#
    • 1...Ra7
      • 2.Bxe4#
    • 1...Ra8
      • 2.Bxe4#
    • 1...Rd4
      • 2.R2xe5#
      • 2.R7xe5#
    • 1...Bd4
      • 2.Bxe4#
  • Keys
    • 1.Rd2+!
      • 1...Qd4
        • 2.Sc3#
      • 1...Rad4
        • 2.Bb3#
      • 1...Red4
        • 2.Rxe5#
      • 1...Bd4
        • 2.Bxe4#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 6
  • Sets
    • R(b);N_GUARD::B(A),XR(c)
    • B(f);S_CUTR(b)::B(A),XR(c)
  • Actual
    • R(B);CHECK
    • Vars
      • Q(a);P_SPINQ(a)::S(C)
      • R(b);P_SPINR(b)::B(A)
      • R(c);P_SPINR(c)::R1(E),XB(f)
      • B(f);P_SPINB(f)::B(A),XR(c)
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