MESON Chess Problem Database

Problem Display
PID: 143941 (8/4R3/7B/1p2NP2/1P1k2p1/3P1pP1/8/2NK3B w - - 0 1)

Foster, D

Daily Telegraph, 1929

(First published on Sat Sep 21 1929)

8/4R3/7B/1p2NP2/1P1k2p1/3P1pP1/8/2NK3B

#2

10 + 4

14868 Pirnie Collection 2012

SOLUTION

  • SOUND
  • Sets
    • 1...f2
      • 2.Se2#
  • Tries
    • 1.Kc2?
      • 1...f2
        • 2.Se2#
        • 2.Sb3#
        • 2.Sc6#
      • 1...Kd5!
    • 1.Kd2?
      • 1...f2
        • 2.Se2#
        • 2.Sb3#
        • 2.Sc6#
        • 2.Be3#
      • 1...Kd5!
    • 1.Sc6+?
      • 1...Kc3
        • 2.Bg7#
      • 1...Kd5!
    • 1.Bd2?
      • 1...f2
        • 2.Se2#
        • 2.Sb3#
        • 2.Sc6#
      • 1...Kd5!
    • 1.Bf4?
      • 1...Kd5
        • 2.Rd7#
      • 1...f2
        • 2.Se2#
      • 1...Kc3!
  • Keys
    • 1.Bg7!
      • 1...Kc3
        • 2.Sc6#
      • 1...Ke3
        • 2.Sxg4#
      • 1...Kd5
        • 2.Rd7#
      • 1...f2
        • 2.Sc4#
        • 2.Sxg4#
        • 2.Sc6#
        • 2.Sg6#
        • 2.Sd7#
        • 2.Sf7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • P(a);N_GUARD::S(A)
  • Tries
    • Try
      • K(B);S_FLIGHT
      • Refutation
        • K(b);P-FLIGHT,P_SPINP(a)
    • Try
      • K(B);P-FLIGHT
      • Refutation
        • K(b);P-FLIGHT,P_SPINP(a)
    • Try
      • S(G);CHECK
      • Vars
        • K(b);S_FLIGHT::B(I)
      • Refutation
        • K(b);P-FLIGHT,P_SPINP(a)
    • Try
      • B(I);
      • Refutation
        • K(b);P-FLIGHT,P_SPINP(a)
    • Try
      • B(I);
      • Vars
        • K(b);P-FLIGHT,P_SPINP(a)::R(J)
        • P(a);N_GUARD::S(A)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • B(I);
    • Vars
      • K(b);S_FLIGHT::B(I)+S(G)
      • K(b);S_FLIGHT::R(J)+S(G),DCHECK,XP(c)
      • K(b);P-FLIGHT,P_SPINP(a)::R(J)
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