MESON Chess Problem Database

Problem Display
PID: 129872 (8/8/3pK2b/7p/5k2/4p3/4P2P/2Q5 w - - 0 1)

Gold, S?

Deutsche Schachzeitung, 1884

8/8/3pK2b/7p/5k2/4p3/4P2P/2Q5

#2

4 + 5

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Ke4
      • 2.Qc4#
    • 1...Bg5
      • 2.Qc4#
  • Tries
    • 1.Qxe3+?
      • 1...Kg4
        • 2.Qg3#
      • 1...Kxe3!
  • Keys
    • 1.Qe1!
      • threat
        • 2.Qh4#
      • 1...Ke4
        • 2.Qb4#
      • 1...Kg4
        • 2.Qg3#
      • 1...Kg5
        • 2.Qg3#
      • 1...Bg5
        • 2.Qb4#
      • 1...h4
        • 2.Qxh4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(b);N_SPINP(a),P-FLIGHT::QAR2(A)
    • B(e);SBLOCK::QAR(A)
  • Tries
    • Try
      • Q(A);CHECK,XP(a)
      • Vars
        • K(b);P-FLIGHT::QAR1(A)
      • Refutation
        • K(b);S_FLIGHT,XQ(A)
  • Actual
    • Q(A);N_PINP(a)
    • Threat
      • QAR2(A)
    • Vars
      • K(b);P-FLIGHT::QAR(A)
      • K(b);P-FLIGHT::QAR1(A)
      • K(b);S_FLIGHT::QAR2(A)
      • B(e);SBLOCK::QAR(A)
      • P(c);::QAR2(A),XP(c)
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