MESON Chess Problem Database

Problem Display
PID: 175111 (8/1b3q2/B7/6p1/1R2pkPp/1p5P/1Q1P2K1/8 w - - 0 1)

Sommerfeldt, Otto Erland Vitus

320 Danske Skakopgaver, 1902

8/1b3q2/B7/6p1/1R2pkPp/1p5P/1Q1P2K1/8

#2

7 + 7

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Qc4
      • 2.Qf6#
    • 1...Qh5
      • 2.Qf6#
    • 1...Qe8
      • 2.Qf6#
    • 1...Qg8
      • 2.Qf6#
    • 1...Qf6
      • 2.Qxf6#
    • 1...Qc7
      • 2.Qf6#
  • Keys
    • 1.d4!
      • threat
        • 2.Qf2#
      • 1...e3+
        • 2.d5#
      • 1...Ke3
        • 2.Qc1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 6
  • Sets
    • Q(g);N_GUARD,N_SPINP(b)::QAR2(A)
    • Q(g);N_GUARD::QAR2(A)
    • Q(g);N_GUARD::QAR2(A),XQ(g)
  • Actual
    • P(B);N_PINP(b)
    • Threat
      • QAR2(A)
    • Vars
      • P(b);CHECK,SBLOCK::R(E)+P(B)
      • K(c);S_FLIGHT::QAB(A)
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