MESON Chess Problem Database

Problem Display
PID: 231070 (3kbbRr/7p/1P1N4/8/8/7Q/K7/8 w - - 0 1)

Burian, Adolf

Pravo lidu, 1927

3kbbRr/7p/1P1N4/8/8/7Q/K7/8

#2

5 + 5

6490 yacpdb 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Bd7
      • 2.Qh4#
    • 1...Be7
      • 2.Sb7#
      • 2.Sf7#
      • 2.Qc8#
  • Keys
    • 1.Qe6!
      • threat
        • 2.Sb7#
        • 2.Qxe8#
      • 1...Bxd6
        • 2.Qxe8#
      • 1...Ba4
        • 2.Sb7#
        • 2.Sf7#
      • 1...Bb5
        • 2.Sb7#
        • 2.Sf7#
      • 1...Bh5
        • 2.Sb7#
      • 1...Bc6
        • 2.Sf7#
      • 1...Bg6
        • 2.Sb7#
      • 1...Bd7
        • 2.Qf6#
      • 1...Bf7
        • 2.Sb7#
        • 2.Sxf7#
      • 1...Be7
        • 2.Sb7#
        • 2.Sf7#
        • 2.Qc8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • B(c);P_SPINB(d),SBLOCK::QAB(B)
  • Actual
    • Q(B);
    • Threat
      • DUALS(2)
    • Vars
      • B(d);P_SPINB(c),XS(D)::QAR1(B),XB(c)
      • B(c);P_SPINB(d)::S(D)
      • B(c);N_GUARD,P_SPINB(d)::S(D)
      • B(c);P_SPINB(d),SBLOCK::QAB(B)
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