MESON Chess Problem Database

Problem Display
PID: 266226 (3BR3/2rn2r1/Rb1k3q/1P2p1pb/1P2p3/N1p1N3/7Q/6K1 w - - 0 1)

Carter, WH

Sunday Referee, 1937

(First published on Sun Jan 17 1937)

3BR3/2rn2r1/Rb1k3q/1P2p1pb/1P2p3/N1p1N3/7Q/6K1

#2

9 + 11

15239 Valois Notebooks 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Rc4
      • 2.Sxc4#
    • 1...Ra7
      • 2.Sc4#
    • 1...Rb7
      • 2.Sc4#
    • 1...c2
      • 2.Qd2#
  • Tries
    • 1.Rxb6+?
      • 1...Rc6
        • 2.Sac4#
        • 2.Rxc6#
      • 1...Sxb6!
  • Keys
    • 1.Qa2!
      • threat
        • 2.Qd5#
      • 1...Sf6
        • 2.Qe6#
      • 1...Qe6
        • 2.Rxe6#
        • 2.Qxe6#
      • 1...Rc4
        • 2.Sxc4#
      • 1...Rc5
        • 2.Sf5#
      • 1...Bf7
        • 2.Be7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 3
  • Sets
    • R(i);N_GUARD::S(C),XR(i)
    • R(i);N_GUARD::S(C)
    • P(a);N_GUARD::QAR(B)
  • Tries
    • Try
      • R(G);CHECK,N_SPINS(D),XB(f)
      • Refutation
        • S(j);XR(G)
  • Actual
    • Q(B);N_PINP(c)
    • Threat
      • QAR1(B)
    • Vars
      • S(j);S_CUTQ(h)::QAR1(B)
      • R(i);N_GUARD::S(C),XR(i)
      • R(i);N_PINS(D)::S(D)
      • B(e);S_CUTR(k)::B(H)
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