MESON Chess Problem Database

Problem Display
PID: 175048 (8/2R1N3/3p4/1p6/3k4/3P1RP1/2nrp3/1B2N1K1 w - - 0 1)

Johnson, Henry Sparks

Boston Sunday Post, 1901

8/2R1N3/3p4/1p6/3k4/3P1RP1/2nrp3/1B2N1K1

#2

8 + 6

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Rf4+?
      • 1...Ke3
        • 2.Sd5#
        • 2.Sf5#
        • 2.Re4#
      • 1...Ke5!
    • 1.Rc4+?
      • 1...Ke5
        • 2.Re4#
      • 1...bxc4!
  • Keys
    • 1.Re3!
      • threat
        • 2.Re4#
      • 1...Kxe3
        • 2.Sf5#
      • 1...Rxd3
        • 2.Sxc2#
      • 1...Sxe3
        • 2.Sf3#
      • 1...d5
        • 2.Sf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(E);CHECK
      • Refutation
        • K(d);S_FLIGHT
    • Try
      • R(G);CHECK
      • Vars
        • K(d);OGATE,S_FLIGHT::R1(G)
      • Refutation
        • P(e);XR(G)
  • Actual
    • R(E);
    • Threat
      • R1(E)
    • Vars
      • K(d);S_FLIGHT,XR(E)::S(H)
      • R(b);N_GUARD,XP(D)::S(B),XS(a)
      • S(a);SBLOCK,XR(E)::S(B)
      • P(f);SBLOCK::S(H)
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