MESON Chess Problem Database

Problem Display
PID: 193656 (8/3p1rN1/1K1R4/3bk1Nn/R4q1Q/2pPp3/4Pr1B/8 w - - 0 1)

Dobbs, Gilbert S

Pittsburgh Gazette-Times, 1915

8/3p1rN1/1K1R4/3bk1Nn/R4q1Q/2pPp3/4Pr1B/8

#2

9 + 9

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Bh1
      • 2.Sxf7#
    • 1...Bg2
      • 2.Sxf7#
    • 1...Bf3
      • 2.Sxf7#
    • 1...Be4
      • 2.Sxf7#
    • 1...Bc6
      • 2.Sxf7#
    • 1...Bb7
      • 2.Sxf7#
    • 1...Ba8
      • 2.Sxf7#
  • Tries
    • 1.Re6+?
      • 1...dxe6
        • 2.Sxf7#
      • 1...Bxe6!
  • Keys
    • 1.Re4+!
      • 1...Kxd6
        • 2.Se8#
      • 1...Bxe4
        • 2.Sxf7#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 6
  • Sets
    • B(e);N_GUARD::S(F),XR(i)
  • Tries
    • Try
      • R(H);CHECK
      • Vars
        • P(h);XR(H)::S(F),XR(i)
      • Refutation
        • B(e);XR(H)
  • Actual
    • R(D);CHECK
    • Vars
      • K(f);S_FLIGHT,XR(H)::S(I)
      • B(e);XR(D)::S(F),XR(i)
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