MESON Chess Problem Database

Problem Display
PID: 2519 (4R3/2p4p/2P1PP1P/1QKpPNBB/2p1k1Np/8/2P3P1/8 w - d5 0 1)

Mackenzie, Arthur Ford

Source?, 0000

4R3/2p4p/2P1PP1P/1QKpPNBB/2p1k1Np/8/2P3P1/8

#2

14 + 6

2794 Terms & Themes of Chess Problems 1907

SOLUTION

  • SOUND
  • Sets
    • 1...c3
      • 2.Qd3#
    • 1...h3
      • 2.Sg3#
  • Tries
    • 1.Sd4?
      • 1...c3
        • 2.Qe2#
        • 2.Qd3#
      • 1...h3!
    • 1.Sxh4?
      • 1...c3
        • 2.Qe2#
        • 2.Qd3#
      • 1...d4!
    • 1.Qxc4+?
      • 1...Kxf5
        • 2.Qf4#
      • 1...d4
        • 2.Qd3#
      • 1...dxc4!
  • Keys
    • 1.exd5 ep!
      • 1...cxd6+
        • 2.Sxd6#
      • 1...Kxf5
        • 2.Kd4#
      • 1...c3
        • 2.Qd3#
      • 1...h3
        • 2.Sg3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(a);OGATE::QAB1(D)
    • P(c);N_GUARD::S(G)
  • Tries
    • Try
      • S(G);
      • Refutation
        • P(c);
    • Try
      • S(G);XP(c)
      • Refutation
        • P(d);
    • Try
      • Q(D);CHECK,XP(a)
      • Vars
        • K(b);OGATE,S_FLIGHT,XS(G)::QAR1(D)
        • P(d);P_SPINP(d)::QAB1(D)
      • Refutation
        • P(d);XQ(D)
  • Actual
    • P(F);EP,XP(d)
    • Vars
      • P(e);CHECK,XP(F)::S(G),XP(e)
      • K(b);S_FLIGHT,XS(G)::QAR(D)+K(E)
      • P(a);OGATE::QAB1(D)
      • P(c);N_GUARD::S(G)
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