MESON Chess Problem Database

Problem Display
PID: 142304 (K4b2/3BR1p1/p2k2P1/P7/2pN4/2B5/8/4R3 w - - 0 1)

Kesl, Josef

Source?, 0000

K4b2/3BR1p1/p2k2P1/P7/2pN4/2B5/8/4R3

#2

8 + 5

14868 Pirnie Collection 2011
5454 Near Snap 2013

SOLUTION

  • SOUND
  • Tries
    • 1.Sb5+?
      • 1...Kc5
        • 2.R1e5#
        • 2.R7e5#
      • 1...Kd5
        • 2.R1e5#
        • 2.R7e5#
      • 1...axb5!
    • 1.Sf5+?
      • 1...Kc5
        • 2.R1e5#
        • 2.R7e5#
      • 1...Kd5
        • 2.R1e5#
        • 2.R7e5#
      • 1...Kc7!
    • 1.Bb4+?
      • 1...Kc7
        • 2.Se6#
      • 1...Kd5!
  • Keys
    • 1.Rd1!
      • 1...Kc5
        • 2.Se6#
      • 1...Kd5
        • 2.Sb3#
      • 1...Kc7
        • 2.Se6#
      • 1...Kxe7
        • 2.Sc6#
      • 1...Bxe7
        • 2.Se6#

This anticipates 4548(1879), 142307(1893)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);CHECK
      • Refutation
        • P(b);XS(C)
    • Try
      • S(C);CHECK
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • B(B);CHECK
      • Vars
        • K(c);S_FLIGHT::S(C)
      • Refutation
        • K(c);P-FLIGHT
  • Actual
    • R(A);
    • Vars
      • K(c);S_FLIGHT::S(C)
      • K(c);P-FLIGHT::R(A)+S(C)
      • K(c);S_FLIGHT,XR(G)::S(C)
      • B(e);SBLOCK,XR(G)::R(A)+S(C)
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