MESON Chess Problem Database

Problem Display
PID: 206650 (kN1KbR2/2Q5/8/8/8/8/8/6b1 w - - 0 1)

Markus, Gustav

Osterreichische Schachrundschau, 1925

kN1KbR2/2Q5/8/8/8/8/8/6b1

#2

4 + 3

5454 Near Snap 2020
6490 yacpdb 2020

SOLUTION

  • SOUND
  • Keys
    • 1.Sd7!
      • threat
        • 2.Qb8#
      • 1...Bxd7
        • 2.Kxd7#
      • 1...Bh2
        • 2.Sb6#
      • 1...Bb6
        • 2.Sxb6#
      • 1...Ba7
        • 2.Qc6#

This anticipates 46637(1961)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Actual
    • S(B);
    • Threat
      • QAR1(A)
    • Vars
      • B(c);XS(B)::R(D)+K(C),XB(c)
      • B(a);N_GUARD::S(B)
      • B(a);N_GUARD,P_PINQ(A)::S(B),XB(a)
      • B(a);SBLOCK::QAB(A)
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