MESON Chess Problem Database

Problem Display
PID: 205690 (8/8/8/KB6/8/k7/bNQ5/b7 w - - 0 1)

Berhausen, Fritz

Chess Amateur (The), 1925

8/8/8/KB6/8/k7/bNQ5/b7

#2

4 + 3

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Bxb2
      • 2.Qa4#
    • 1...Bb1
      • 2.Sc4#
    • 1...Bc4
      • 2.Sxc4#
  • Keys
    • 1.Bc4!
      • 1...Bxb2
        • 2.Qa4#
      • 1...Bxc4
        • 2.Sxc4#
      • 1...Bb3
        • 2.Qxb3#
      • 1...Bb1
        • 2.Qb3#
        • 2.Qc3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • B(a);SBLOCK,XS(A)::QAR1(B)
    • B(b);N_GUARD::S(A)
    • B(b);N_GUARD::S(A),XB(b)
  • Actual
    • B(D);
    • Vars
      • B(a);SBLOCK,XS(A)::QAR1(B)
      • B(b);XB(D)::S(A),XB(b)
      • B(b);N_GUARD::QAR1(B),XB(b)
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