MESON Chess Problem Database

Problem Display
PID: 46628 (8/7p/8/3Q4/7k/6nB/8/4K2R w K - 0 1)

Mach, Julius Zdenek

Prager Presse, 1927

8/7p/8/3Q4/7k/6nB/8/4K2R

#2

4 + 3

422 Suomen Tehtavaniekat 1991
4883 Still More Fun with Chess Miniatures 2002

SOLUTION

  • SOUND
  • Sets
    • 1...h5
      • 2.Qd8#
  • Tries
    • 1.Qf3?
      • threat
        • 2.Qg4#
      • 1...h5
        • 2.Qf4#
        • 2.Qf6#
      • 1...Kg5!
    • 1.Qf5?
      • threat
        • 2.Qg4#
      • 1...h5
        • 2.Qf4#
        • 2.Qf6#
      • 1...Sxf5!
  • Keys
    • 1.Qg8!
      • threat
        • 2.Qg4#
      • 1...Kh5
        • 2.Bg4#
      • 1...h5
        • 2.Qd8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • P(c);SBLOCK::QAB(D)
  • Tries
    • Try
      • Q(D);
      • Threat
        • QAR1(D)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(D);
      • Threat
        • QAR1(D)
      • Refutation
        • S(a);XQ(D)
  • Actual
    • Q(D);
    • Threat
      • QAR1(D)
    • Vars
      • K(b);P-FLIGHT::R(B)+B(C),DCHECK
      • P(c);SBLOCK::QAB(D)
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