MESON Chess Problem Database

Problem Display
PID: 21563 (nR6/P1k4p/4P3/K1P4q/1N2N3/8/2Q4b/7b w - - 0 1)

Tucker, HJ

1st Prize, Melbourne Times, 1919

nR6/P1k4p/4P3/K1P4q/1N2N3/8/2Q4b/7b

#2

8 + 6

3360 Simple Two-move Themes 1924

SOLUTION

  • SOUND
  • Sets
    • 1...Qe8
      • 2.Qxh2#
    • 1...Qxc5+
      • 2.Qxc5#
  • Tries
    • 1.Sd6?
      • threat
        • 2.Sb5#
        • 2.Rc8#
      • 1...Qxc5+
        • 2.Sb5#
      • 1...Qe2
        • 2.Se8#
        • 2.Rc8#
        • 2.Qxh7#
      • 1...Qe8
        • 2.Sxe8#
      • 1...Bc6
        • 2.Sa6#
        • 2.Rc8#
      • 1...Bb7
        • 2.Sb5#
      • 1...Sb6
        • 2.Sb5#
      • 1...Bxd6!
    • 1.Qa4?
      • threat
        • 2.Sa6#
        • 2.Qc6#
        • 2.Qd7#
      • 1...Bxe4
        • 2.Sa6#
        • 2.Qd7#
      • 1...Qd1
        • 2.Sa6#
        • 2.Qc6#
      • 1...Qe2
        • 2.Sd5#
        • 2.Qc6#
        • 2.Qd7#
      • 1...Qf7
        • 2.Sd5#
        • 2.Sa6#
        • 2.Qc6#
      • 1...Qe8
        • 2.Sd5#
        • 2.Sa6#
      • 1...Qd5
        • 2.Sxd5#
        • 2.Sa6#
      • 1...Sb6
        • 2.Sa6#
        • 2.Qc6#
      • 1...Qxc5+!
    • 1.Qxh2+?
      • 1...Qe5
        • 2.Qxe5#
      • 1...Qxh2!
  • Keys
    • 1.Sc3!
      • threat
        • 2.Sb5#
      • 1...Qe2
        • 2.Qxh7#
      • 1...Qe8
        • 2.Qxh2#
      • 1...Bc6
        • 2.Sa6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • Q(c);N_GUARD,N_PINP(E)::QAB(A),XB(b)
    • Q(c);CHECK,OGATE,P_SPINQ(c),XP(E)::QAR2(A),XQ(c)
  • Tries
    • Try
      • S(C);
      • Threat
        • DUALS(2)
      • Vars
        • Q(c);CHECK,P_SPINQ(c),XP(E)::S(C)
        • Q(c);N_GUARD,N_PINP(E)::S(C),XQ(c)
        • B(a);::S(C)
        • S(f);::S(C)
      • Refutation
        • B(b);XS(C)
    • Try
      • Q(A);
      • Threat
        • DUALS(3)
      • Refutation
        • Q(c);CHECK,XP(E)
    • Try
      • Q(A);CHECK,XB(b)
      • Vars
        • Q(c);N_GUARD,P_SPINQ(c)::QAB(A),XQ(c)
      • Refutation
        • Q(c);N_PINP(E),XQ(A)
  • Actual
    • S(C);
    • Threat
      • S(C)
    • Vars
      • Q(c);N_GUARD,N_PINP(E)::QAR(A),XP(e)
      • Q(c);N_GUARD,N_PINP(E)::QAB(A),XB(b)
      • B(a);SBLOCK::S(B)
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