MESON Chess Problem Database

Problem Display
PID: 204618 (4Q3/4P3/N1PPP2R/3kn3/N2P3R/4P3/5BK1/5B2 w - - 0 1)

Beck, Friedrich

Deutsche Schachzeitung, 1944

4Q3/4P3/N1PPP2R/3kn3/N2P3R/4P3/5BK1/5B2

#2

14 + 2

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Tries
    • 1.R4h5?
      • 1...Ke4
        • 2.Sc3#
        • 2.Rxe5#
      • 1...Kxd6!
    • 1.Qd7?
      • threat
        • 2.Sc3#
        • 2.Sb6#
        • 2.Sb4#
        • 2.Sc7#
        • 2.e4#
      • 1...Sxc6
        • 2.Sc3#
        • 2.Sb6#
        • 2.Sc7#
        • 2.e4#
      • 1...Sd3
        • 2.Sb6#
      • 1...Sg4
        • 2.Sc3#
      • 1...Sc4
        • 2.Sc3#
        • 2.Sb4#
        • 2.Sc7#
        • 2.e4#
      • 1...Sxd7!
  • Keys
    • 1.Bg3!
      • 1...Kxd6
        • 2.Qd7#
      • 1...Sxc6
        • 2.Sc3#
        • 2.Sb6#
        • 2.Sc7#
      • 1...Sd3
        • 2.Sb6#
      • 1...Sf3
        • 2.Sc3#
        • 2.Sb6#
        • 2.Sb4#
        • 2.Sc7#
      • 1...Sc4
        • 2.Sc3#
        • 2.Sb4#
        • 2.Sc7#
      • 1...Sg4
        • 2.Sc3#
      • 1...Sg6
        • 2.Sc7#
      • 1...Sd7
        • 2.Sb4#
      • 1...Sf7
        • 2.Sc3#
        • 2.Sb6#
        • 2.Sb4#
        • 2.Sc7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(G);P_PINS(b)
      • Refutation
        • K(a);N_SPINS(b),P-FLIGHT,XP(J)
    • Try
      • Q(N);
      • Threat
        • DUALS(5)
      • Vars
        • S(b);::S(E)
      • Refutation
        • S(b);XQ(N)
  • Actual
    • B(B);
    • Vars
      • K(a);OGATEB,P-FLIGHT,P_SPINS(b),XP(J)::QAR1(N)
      • S(b);::S(E)
      • S(b);::S(H)
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