MESON Chess Problem Database

Problem Display
PID: 224278 (5R1K/3nkpP1/4p3/3n4/8/2Q3N1/8/8 w - - 0 1)

Breitenfeld, G

Brownson's Chess Journal, 1887

5R1K/3nkpP1/4p3/3n4/8/2Q3N1/8/8

#2

5 + 5

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Re8+?
      • 1...Kd6
        • 2.Se4#
      • 1...Kxe8!
  • Keys
    • 1.g8S+!
      • 1...Kd6
        • 2.Se4#
      • 1...Kxf8
        • 2.Qc8#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(D);CHECK
      • Vars
        • K(d);S_FLIGHT::S(B)
      • Refutation
        • K(d);P-FLIGHT,XR(D)
  • Actual
    • P(C);CHECK
    • Vars
      • K(d);S_FLIGHT::S(B)
      • K(d);S_FLIGHT,XR(D)::QAR(A)
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