MESON Chess Problem Database

Problem Display
PID: 194746 (5Q2/2q4B/4p3/4N1R1/1Ppkp1r1/4p1p1/2R3K1/8 w - - 0 1)

Nield, Joshua

Western Daily Mercury, 1916

(First published on Fri Dec 29 1916)

5Q2/2q4B/4p3/4N1R1/1Ppkp1r1/4p1p1/2R3K1/8

#2

7 + 8

15239 Valois Notebooks 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Qd6
      • 2.Qxd6#
    • 1...Qb8
      • 2.Qc5#
    • 1...Qd8
      • 2.Qc5#
      • 2.Qxd8#
    • 1...Qc5
      • 2.Qxc5#
    • 1...Qa7
      • 2.Qd6#
    • 1...Qb7
      • 2.Qc5#
    • 1...Qd7
      • 2.Qc5#
    • 1...Qf7
      • 2.Qc5#
      • 2.Qd6#
    • 1...Qg7
      • 2.Qc5#
      • 2.Qd6#
    • 1...Qxh7
      • 2.Qc5#
      • 2.Qd6#
    • 1...Qc8
      • 2.Qd6#
  • Tries
    • 1.Qd8+?
      • 1...Qd6
        • 2.Qxd6#
      • 1...Qd7
        • 2.Qxd7#
      • 1...Qxd8!
  • Keys
    • 1.Qf3!
      • threat
        • 2.Qd1#
      • 1...exf3+
        • 2.Sxf3#
      • 1...Kd5
        • 2.Qd1#
      • 1...Rxg5
        • 2.Qxe4#
      • 1...e2
        • 2.Rd2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 7
  • Sets
    • Q(h);N_GUARD::QAR2(G),XQ(h)
    • Q(h);N_GUARD::QAB1(G)
    • Q(h);N_GUARD::QAB1(G),XQ(h)
    • Q(h);N_GUARD::QAR2(G)
  • Tries
    • Try
      • Q(G);CHECK
      • Vars
        • Q(h);N_GUARD,P_SPINQ(h)::QAR2(G),XQ(h)
        • Q(h);N_GUARD,P_SPINQ(h)::QAR(G),XQ(h)
      • Refutation
        • Q(h);XQ(G)
  • Actual
    • Q(G);
    • Threat
      • QAR(G)
    • Vars
      • P(e);CHECK,XQ(G)::S(D),XP(e)
      • K(d);P-FLIGHT,P_SPINP(e)::QAR(G)
      • R(f);N_GUARD,XR(E)::QAR1(G),XP(e)
      • P(a);N_GUARD::R(A)
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