MESON Chess Problem Database

Problem Display
PID: 136272 (7q/4p1p1/8/8/6N1/8/2Q2pP1/5K1k w - - 0 1)

Rothwell, Stephen

Kieler Nachrichten, 1999

7q/4p1p1/8/8/6N1/8/2Q2pP1/5K1k

#2

4 + 5

14503 Problemschach-Jahrbuch (1999) 2000

SOLUTION

  • SOUND
  • Sets
    • 1...Qh2
      • 2.Sxf2#
    • 1...Qh7
      • 2.Qxh7#
    • 1...Qa8
      • 2.Qh7#
    • 1...Qc8
      • 2.Qh7#
    • 1...Qd8
      • 2.Qh7#
    • 1...Qf8
      • 2.Qh7#
  • Keys
    • 1.Qe4!
      • threat
        • 2.g3#
      • 1...Qh2
        • 2.Sxf2#
      • 1...Qh3
        • 2.gxh3#
      • 1...Qh7
        • 2.Qxh7#
      • 1...Qa8
        • 2.Qh7#
      • 1...Qf8
        • 2.Qh7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • Q(e);SBLOCK::S(D),XP(b)
    • Q(e);N_GUARD::QAR(B),XQ(e)
    • Q(e);N_GUARD::QAR(B)
  • Actual
    • Q(B);
    • Threat
      • QAB(B)+P(C)
    • Vars
      • Q(e);SBLOCK::S(D),XP(b)
      • Q(e);OGATE,P_PINP(C)::QAB(B)+P(C),XQ(e)
      • Q(e);N_GUARD::QAR(B),XQ(e)
      • Q(e);N_GUARD::QAR(B)
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