MESON Chess Problem Database

Problem Display
PID: 223102 (6bb/3pP2p/2q4k/4n3/6Q1/3B3n/5R2/K7 w - - 0 1)

Moller, Herbert

York Daily (York, Pennsylvania), 1886

6bb/3pP2p/2q4k/4n3/6Q1/3B3n/5R2/K7

#2

5 + 8

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Bg7
      • 2.Qh4#
  • Tries
    • 1.Qxh3+?
      • 1...Kg7
        • 2.e8S#
      • 1...Kg5!
    • 1.Qh5+?
      • 1...Kg7
        • 2.e8S#
      • 1...Kxh5!
  • Keys
    • 1.Qh4+!
      • 1...Kg7
        • 2.e8S#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • B(h);SBLOCK::QAR2(D)
  • Tries
    • Try
      • Q(D);CHECK,XS(a)
      • Vars
        • K(d);S_FLIGHT::P=S
      • Refutation
        • K(d);S_FLIGHT
    • Try
      • Q(D);CHECK
      • Vars
        • K(d);S_FLIGHT::P=S
      • Refutation
        • K(d);P-FLIGHT,XQ(D)
  • Actual
    • Q(D);CHECK
    • Vars
      • K(d);S_FLIGHT::P=S
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