MESON Chess Problem Database

Problem Display
PID: 146477 (R3b3/r4P1K/1N1k4/pn1B4/N2p1R1B/5p2/8/8 w - - 0 1)

Kemp, Charles Edward

Pittsburgh Sun, 1926

(First published on Mon May 24 1926)

R3b3/r4P1K/1N1k4/pn1B4/N2p1R1B/5p2/8/8

#2

8 + 7

15044 Kemp Archive 2013

SOLUTION

  • SOUND
  • Sets
    • 1...Kc7
      • 2.fxe8S#
  • Tries
    • 1.Rf6+?
      • 1...Kc7
        • 2.Rc8#
        • 2.fxe8S#
      • 1...Ke7
        • 2.Rxe8#
        • 2.fxe8Q#
        • 2.fxe8R#
        • 2.f8Q#
        • 2.f8B#
      • 1...Ke5!
  • Keys
    • 1.Bg3!
      • threat
        • 2.Re4#
      • 1...Rxf7+
        • 2.Rxf7#
      • 1...Ke5
        • 2.Rxf3#
      • 1...Kc7
        • 2.fxe8S#
      • 1...Ke7
        • 2.f8Q#
        • 2.f8B#
      • 1...Re7
        • 2.Rf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(e);N_PINP(F),S_FLIGHT::PXB(g)=S
  • Tries
    • Try
      • R(B);CHECK
      • Refutation
        • K(e);S_FLIGHT
  • Actual
    • B(C);
    • Threat
      • B(C)+R(B)
    • Vars
      • R(f);CHECK,OGATE,XP(F)::B(C)+R(B),XR(f)
      • K(e);S_FLIGHT::B(C)+R(B),XP(a)
      • K(e);N_PINP(F),S_FLIGHT::PXB(g)=S
      • K(e);N_PINP(F),S_FLIGHT::P=Q
      • R(f);SBLOCK::B(C)+R(B),DCHECK
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