MESON Chess Problem Database

Problem Display
PID: 38617 (r3k1n1/2Q5/3nK3/3N4/8/8/8/8 w q - 0 1)

Lewis, Robert Tony

Atlantic Chess News, 1995

r3k1n1/2Q5/3nK3/3N4/8/8/8/8

#2

3 + 4

2786 More Fun with Chess Miniatures 2000

SOLUTION

  • SOUND
  • Sets
    • 1...Sf6
      • 2.Qe7#
    • 1...Sh6
      • 2.Qe7#
    • 1...Se7
      • 2.Qxe7#
  • Tries
    • 1.Sf6+?
      • 1...Sxf6
        • 2.Qe7#
      • 1...Kf8!
    • 1.Qxd6?
      • threat
        • 2.Sc7#
      • 1...Se7
        • 2.Qxe7#
      • 1...Ra7
        • 2.Qb8#
      • 1...Rc8!
    • 1.Qc6+?
      • 1...Kd8
        • 2.Qd7#
      • 1...Kf8!
    • 1.Qf7+?
      • 1...Kd8
        • 2.Qd7#
      • 1...Sxf7!
    • 1.Qh7?
      • threat
        • 2.Qxg8#
      • 1...Kd8
        • 2.Qd7#
      • 1...0-0-0
        • 2.Qc7#
      • 1...Sf6
        • 2.Qe7#
      • 1...Sh6
        • 2.Qe7#
      • 1...Se7
        • 2.Qxe7#
      • 1...Kf8!
  • Keys
    • 1.Qg7!
      • threat
        • 2.Qxg8#
      • 1...Kd8
        • 2.Qd7#
      • 1...0-0-0
        • 2.Qc7#
      • 1...Sf6
        • 2.Qe7#
      • 1...Sh6
        • 2.Qe7#
      • 1...Se7
        • 2.Qxe7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • S(d);N_GUARD::QAR1(C)
    • S(d);N_GUARD::QAR1(C),XS(d)
  • Tries
    • Try
      • S(A);CHECK
      • Vars
        • S(d);XS(A)::QAR1(C)
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • Q(C);XS(a)
      • Threat
        • S(A)
      • Vars
        • S(d);N_GUARD::QAR1(C),XS(d)
        • R(b);N_GUARD::QAR(C)
      • Refutation
        • R(b);
    • Try
      • Q(C);CHECK
      • Vars
        • K(c);P-FLIGHT::QAR1(C)
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • Q(C);CHECK
      • Vars
        • K(c);P-FLIGHT::QAR1(C)
      • Refutation
        • S(a);XQ(C)
    • Try
      • Q(C);
      • Threat
        • QAR2(C),XS(d)
      • Vars
        • K(c);P-FLIGHT::QAR1(C)
        • K(c);0-0-0,OGATEB::QAR1(C)
        • S(d);N_GUARD::QAR1(C)
        • S(d);N_GUARD::QAR1(C),XS(d)
      • Refutation
        • K(c);P-FLIGHT
  • Actual
    • Q(C);
    • Threat
      • QAR2(C),XS(d)
    • Vars
      • K(c);P-FLIGHT::QAR1(C)
      • K(c);0-0-0,OGATEB::QAR1(C)
      • S(d);N_GUARD::QAR1(C)
      • S(d);N_GUARD::QAR1(C),XS(d)
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