MESON Chess Problem Database

Problem Display
PID: 216249 (7N/4p1K1/8/2p1kp2/2PRN3/B3p3/4B3/8 w - - 0 1)

Masson, PR

Australasian (The), 1881

7N/4p1K1/8/2p1kp2/2PRN3/B3p3/4B3/8

#2

7 + 5

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kf4
      • 2.Sg6#
  • Tries
    • 1.Sg6+?
      • 1...Ke6
        • 2.Sxc5#
        • 2.Sg5#
      • 1...Kxd4!
  • Keys
    • 1.Sg5!
      • 1...Kxd4
        • 2.Bb2#
      • 1...cxd4
        • 2.Sg6#
      • 1...f4
        • 2.Rd5#
      • 1...e6
        • 2.Sf3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • K(c);S_FLIGHT::S(G)
  • Tries
    • Try
      • S(G);CHECK
      • Refutation
        • K(c);S_FLIGHT,XR(D)
  • Actual
    • S(E);
    • Vars
      • K(c);OGATEB,S_FLIGHT,XR(D)::B(B)
      • P(b);SBLOCK,XR(D)::S(G)
      • P(d);SBLOCK::R1(D)
      • P(e);SBLOCK::S(E)
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