MESON Chess Problem Database

Problem Display
PID: 222403 (8/4B3/8/2P2p2/QN3k2/2P4P/6K1/8 w - - 0 1)

Gold, Samuel

200 Schachaufgaben, 1883

8/4B3/8/2P2p2/QN3k2/2P4P/6K1/8

#2

7 + 2

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Bg5+?
      • 1...Ke4
        • 2.Qe8#
      • 1...Ke5
        • 2.Qe8#
      • 1...Kxg5!
    • 1.Qc2?
      • 1...Ke3
        • 2.Sd5#
      • 1...Ke5!
    • 1.Qc6?
      • 1...Ke5
        • 2.Sd3#
      • 1...Ke3!
  • Keys
    • 1.Qe8!
      • 1...Ke3
        • 2.Bg5#
      • 1...Ke4
        • 2.Bg5#
        • 2.Bd6#
      • 1...Ke5
        • 2.Bg5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(G);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR(D)
        • K(a);S_FLIGHT::QAR(D)
      • Refutation
        • K(a);S_FLIGHT,XB(G)
    • Try
      • Q(D);
      • Vars
        • K(a);S_FLIGHT::S(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(D);
      • Vars
        • K(a);S_FLIGHT::S(E)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(D);
    • Vars
      • K(a);S_FLIGHT::QAR(D)+B(G),DCHECK
      • K(a);S_FLIGHT::QAR(D)+B(G)
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