MESON Chess Problem Database

Problem Display
PID: 221721 (5r2/2NR4/4Pkp1/1p2r2p/1PP2P1P/2KB2N1/1B2bp2/8 w - - 0 1)

Kidson, Henry Edwin

Leeds Mercury Weekly Supplement, 1882

(First published on Sat Jan 7 1882)

5r2/2NR4/4Pkp1/1p2r2p/1PP2P1P/2KB2N1/1B2bp2/8

#2

11 + 8

15239 Valois Notebooks 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Rf5
      • 2.Se4#
    • 1...Rg5
      • 2.hxg5#
    • 1...Rxe6
      • 2.Sd5#
    • 1...Rf7
      • 2.Rxf7#
    • 1...Ra8
      • 2.Rf7#
    • 1...Rb8
      • 2.Rf7#
    • 1...Rc8
      • 2.Rf7#
    • 1...Rd8
      • 2.Rf7#
    • 1...Re8
      • 2.Rf7#
    • 1...Rg8
      • 2.Rf7#
    • 1...Rh8
      • 2.Rf7#
  • Tries
    • 1.Kd2?
      • threat
        • 2.Bxe5#
        • 2.fxe5#
      • 1...Rf7
        • 2.Bxe5#
        • 2.Rxf7#
      • 1...f1S+!
  • Keys
    • 1.Kd4!
      • threat
        • 2.fxe5#
      • 1...Re4+
        • 2.Kxe4#
      • 1...Rd5+
        • 2.Kxd5#
      • 1...Rxe6
        • 2.Sd5#
      • 1...Rf7
        • 2.Rxf7#
      • 1...Re3
        • 2.Kxe3#
      • 1...Rc5
        • 2.Kxc5#
      • 1...Rf5
        • 2.Se4#
      • 1...Rg5
        • 2.fxg5#
        • 2.hxg5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 8
  • Sets
    • R(d);N_GUARD,SBLOCK::S(D)
    • R(d);OGATE::P(H),XR(d)
    • R(d);N_GUARD,SBLOCK,XP(I)::S(J)
    • R(h);N_GUARD::R1(K),XR(h)
    • R(h);N_GUARD::R1(K)
  • Tries
    • Try
      • K(B);P_PINR(d),S_FLIGHT
      • Threat
        • DUALS(2)
      • Refutation
        • P(b);CHECK
  • Actual
    • K(B);S_FLIGHT
    • Threat
      • P(G),XR(d)
    • Vars
      • R(d);CHECK::B(A)+K(B),XR(d)
      • R(d);N_GUARD,SBLOCK,XP(I)::S(J)
      • R(h);N_GUARD::R1(K),XR(h)
      • R(d);::B(A)+K(B),XR(d)
      • R(d);N_GUARD,SBLOCK::S(D)
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