MESON Chess Problem Database

Problem Display
PID: 285990 (B4Q2/8/8/3N2p1/4k3/4p3/1K2pp2/8 w - - 0 1)

Buchwald, Julius

The Problemist, 1951

B4Q2/8/8/3N2p1/4k3/4p3/1K2pp2/8

#2

4 + 5

5454 Near Snap 2026
3713 Snap 2026
6490 yacpdb 2026

SOLUTION

  • SOUND
  • Tries
    • 1.Sb6+?
      • 1...Kd3
        • 2.Qd6#
        • 2.Qd8#
      • 1...Kd4
        • 2.Qd6#
      • 1...Ke5!
  • Keys
    • 1.Qd6!
      • threat
        • 2.Se7#
      • 1...Kd3
        • 2.Sb6#
      • 1...Kf3
        • 2.Sf6#
      • 1...Kd4
        • 2.Sb6#
      • 1...Kf5
        • 2.Sxe3#

Anticipated by 263777(1933), 74153(1951)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(B);CHECK
      • Vars
        • K(d);N_GUARD,P-FLIGHT::QAR2(D)
      • Refutation
        • K(d);P-FLIGHT
  • Actual
    • Q(D);
    • Threat
      • B(C)+S(B)
    • Vars
      • K(d);N_GUARD,S_FLIGHT::QAR(D)+S(B)
      • K(d);N_GUARD,S_FLIGHT::B(C)+S(B)
      • K(d);N_GUARD,P-FLIGHT::QAR(D)+S(B)
      • K(d);N_GUARD,S_FLIGHT::S(B),XP(c)
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