MESON Chess Problem Database

Problem Display
PID: 221426 (8/1p3p2/5R1p/n1pk4/3P3r/1p3N1p/1P2Q2K/8 w - - 0 1)

Hill, C

British Chess Magazine, 1927

8/1p3p2/5R1p/n1pk4/3P3r/1p3N1p/1P2Q2K/8

#2

6 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...c4
      • 2.Qe5#
  • Keys
    • 1.Sd2!
      • threat
        • 2.Qe5#
      • 1...Kxd4
        • 2.Rd6#
      • 1...Rxd4
        • 2.Qh5#
      • 1...cxd4
        • 2.Qb5#
      • 1...Re4
        • 2.Qxe4#
      • 1...Rh5
        • 2.Qe4#
      • 1...Sc4
        • 2.Qxc4#
      • 1...Sc6
        • 2.Qc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 1
  • Sets
    • P(e);SBLOCK::QAR1(B)
  • Actual
    • S(D);
    • Threat
      • QAR1(B)
    • Vars
      • K(f);P-FLIGHT,XP(E)::R(F)
      • R(c);N_GUARD,SBLOCK,XP(E)::QAR(B)
      • P(e);OGATEB,SBLOCK,XP(E)::QAR2(B)
      • R(c);N_GUARD::QAB1(B),XR(c)
      • R(c);N_GUARD::QAB1(B)
      • S(d);N_GUARD::QAB1(B),XS(d)
      • S(d);N_GUARD::QAB1(B)
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