MESON Chess Problem Database

Problem Display
PID: 5141 (8/4p3/6B1/4k3/5N1P/8/3Q2K1/8 w - - 0 1)

Hoffmann, V

Shakhmatny Zhurnal, 1900

8/4p3/6B1/4k3/5N1P/8/3Q2K1/8

#2

5 + 2

3813 300 Sachmatu Uzdaviniu 1991
3296 Shakhmatny zadachi miniaturi 2000
5454 Near Snap 2009
3713 Snap 2018
5454 Near Snap 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Qc3+?
      • 1...Kxf4
        • 2.Qd4#
        • 2.Qg3#
      • 1...Kd6!
    • 1.Qb2+?
      • 1...Kxf4
        • 2.Qd4#
      • 1...Kd6!
    • 1.Qd5+?
      • 1...Kxf4
        • 2.Qe4#
        • 2.Qd4#
        • 2.Qg5#
      • 1...Kf6!
  • Keys
    • 1.Qd8!
      • 1...Kxf4
        • 2.Qd4#
      • 1...Kf6
        • 2.Qh8#
      • 1...e6
        • 2.Sd3#

This anticipates 181855(1905), 187765(1909), 193920(1916), 21242(1917), 28734(1923)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);CHECK
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);S_FLIGHT,XS(C)::QAR2(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(A);
    • Vars
      • K(a);S_FLIGHT,XS(C)::QAR2(A)
      • K(a);P_SPINP(b),S_FLIGHT::QAB(A)
      • P(b);SBLOCK::S(C)
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