MESON Chess Problem Database

Problem Display
PID: 229806 (n3N3/3R1p2/P1k2r2/3b4/P1p3Qp/4Bp1K/8/8 w - - 0 1)

Caine, Walter Edmund

Southend Times, 1937

(First published on Sat May 8 1937)

n3N3/3R1p2/P1k2r2/3b4/P1p3Qp/4Bp1K/8/8

#2

7 + 8

15239 Valois Notebooks 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rf4
      • 2.Rd6#
    • 1...Rf5
      • 2.Rd6#
    • 1...Rd6
      • 2.Rxd6#
    • 1...Be6
      • 2.Rd6#
    • 1...Sb6
      • 2.Rc7#
    • 1...Sc7
      • 2.Rxc7#
  • Tries
    • 1.Rxd5?
      • threat
        • 2.Qd7#
        • 2.Qxc4#
      • 1...Rf4
        • 2.Rd6#
        • 2.Qd7#
      • 1...Rf5
        • 2.Rd6#
        • 2.Qxc4#
      • 1...Rd6
        • 2.Rxd6#
      • 1...Re6
        • 2.Qxc4#
      • 1...Sb6
        • 2.Rc5#
      • 1...c3
        • 2.Qd7#
        • 2.Qc4#
      • 1...Kxd5!
  • Keys
    • 1.Qf5!
      • threat
        • 2.Qxd5#
      • 1...Rxf5
        • 2.Rd6#
      • 1...Be6
        • 2.Rd6#
      • 1...Rd6
        • 2.Rxd6#
      • 1...Be4
        • 2.Qb5#
      • 1...Sb6
        • 2.Rc7#
      • 1...Sc7
        • 2.Rxc7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • R(f);N_GUARD::R1(F)
    • R(f);N_GUARD::R1(F),XR(f)
    • B(d);P_PINQ(D),S_CUTR(f)::R1(F)
    • S(h);N_GUARD::R1(F)
    • S(h);N_GUARD::R1(F),XS(h)
  • Tries
    • Try
      • R(F);XB(d)
      • Threat
        • DUALS(2)
      • Vars
        • R(f);N_GUARD::R1(F),XR(f)
        • R(f);::QAR2(D),XP(b)
        • S(h);SBLOCK::R1(F)
      • Refutation
        • K(e);S_FLIGHT,XR(F)
  • Actual
    • Q(D);
    • Threat
      • QAB1(D),XB(d)
    • Vars
      • R(f);N_GUARD,XQ(D)::R1(F)
      • B(d);P_PINQ(D),S_CUTR(f)::R1(F)
      • R(f);N_GUARD::R1(F),XR(f)
      • B(d);OGATE::QAB1(D)
      • S(h);N_GUARD::R1(F)
      • S(h);N_GUARD::R1(F),XS(h)
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