MESON Chess Problem Database

Problem Display
PID: 214510 (8/b1Q5/2p1p3/2k1K3/8/8/PR6/8 w - - 0 1)

Barbe, Emanuel

Brownson's Chess Journal, 1877

8/b1Q5/2p1p3/2k1K3/8/8/PR6/8

#2

4 + 4

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Qh7?
      • threat
        • 2.Qc2#
      • 1...Kc4
        • 2.Qc2#
      • 1...Bb8+!
  • Keys
    • 1.Qxa7+!
      • 1...Kc4
        • 2.Qd4#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(D);N_PINP(b)
      • Threat
        • QAR(D)
      • Vars
        • K(a);P-FLIGHT::QAR2(D)
      • Refutation
        • B(d);CHECK
  • Actual
    • Q(D);CHECK,N_PINP(b),XB(d)
    • Vars
      • K(a);OGATE,P-FLIGHT::QAR1(D)
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