MESON Chess Problem Database

Problem Display
PID: 67975 (n4q1B/6R1/3ppr2/4r2p/4B3/8/N3R3/k5bK w - - 0 1)

Kipping, Cyril Stanley

Chess, 1949

n4q1B/6R1/3ppr2/4r2p/4B3/8/N3R3/k5bK

#2

6 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Rxe4
      • 2.Rxg1#
    • 1...Ra5
      • 2.Rxg1#
  • Tries
    • 1.Sc1?
      • threat
        • 2.Sb3#
        • 2.Ra2#
      • 1...Qb8
        • 2.Ra2#
      • 1...Ra5
        • 2.Sb3#
      • 1...Rb5
        • 2.Ra2#
      • 1...Rf2
        • 2.Sb3#
        • 2.Ra7#
      • 1...Rf3
        • 2.Ra2#
      • 1...Rxe4!
  • Keys
    • 1.Sb4!
      • threat
        • 2.Ra2#
      • 1...Rxe4
        • 2.Rxg1#
      • 1...Ra5
        • 2.Rxg1#
      • 1...Rf2
        • 2.Ra7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • R(c);S_CUTR(g),XB(D)::R(E),XB(b)
    • R(c);S_CUTR(g)::R(E),XB(b)
  • Tries
    • Try
      • S(B);
      • Threat
        • DUALS(2)
      • Vars
        • Q(i);::R1(C)
        • R(c);::S(B)
        • R(c);::R1(C)
        • R(g);::R1(C)
      • Refutation
        • R(c);XB(D)
  • Actual
    • S(B);
    • Threat
      • R1(C)
    • Vars
      • R(c);S_CUTR(g),XB(D)::R(E),XB(b)
      • R(c);S_CUTR(g)::R(E),XB(b)
      • R(g);S_CUTB(b),S_CUTR(c)::R(E)
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