MESON Chess Problem Database

Problem Display
PID: 18440 (8/8/8/7p/2N4B/8/3pk1Kn/1Q6 w - - 0 1)

Morse, Christopher Jeremy

Time & Tide, 1955

8/8/8/7p/2N4B/8/3pk1Kn/1Q6

#2

4 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...Sf1
      • 2.Qxf1#
    • 1...Sf3
      • 2.Qf1#
    • 1...Sg4
      • 2.Qf1#
    • 1...d1Q
      • 2.Qe4#
    • 1...d1S
      • 2.Qc2#
    • 1...d1B
      • 2.Qe4#
    • 1...d1R
      • 2.Qe4#
  • Tries
    • 1.Bf2?
      • 1...d1Q
        • 2.Qe4#
      • 1...d1S
        • 2.Qc2#
      • 1...d1B
        • 2.Qe4#
      • 1...d1R
        • 2.Qe4#
      • 1...Sf1
        • 2.Qxf1#
      • 1...Sf3
        • 2.Qf1#
      • 1...Sg4
        • 2.Qf1#
      • 1...h4!
    • 1.Bg3?
      • 1...d1Q
        • 2.Qe4#
      • 1...d1S
        • 2.Qc2#
      • 1...d1B
        • 2.Qe4#
      • 1...d1R
        • 2.Qe4#
      • 1...Sf1
        • 2.Qxf1#
      • 1...Sf3
        • 2.Qf1#
      • 1...Sg4
        • 2.Qf1#
      • 1...h4!
    • 1.Qd3+?
      • 1...Kd1
        • 2.Qxd2#
      • 1...Kxd3!
    • 1.Qf5?
      • 1...d1Q
        • 2.Qe4#
      • 1...d1S
        • 2.Qc2#
      • 1...d1B
        • 2.Qe4#
      • 1...d1R
        • 2.Qe4#
      • 1...Sf1
        • 2.Qxf1#
        • 2.Qf3#
      • 1...Sf3
        • 2.Qxf3#
      • 1...Sg4
        • 2.Qf1#
        • 2.Qf3#
      • 1...Kd1!
  • Keys
    • 1.Qb3!
      • 1...d1Q
        • 2.Qe3#
      • 1...d1S
        • 2.Qc2#
      • 1...d1B
        • 2.Qe3#
      • 1...d1R
        • 2.Qe3#
      • 1...Sf1
        • 2.Qf3#
      • 1...Sf3
        • 2.Qxf3#
      • 1...Sg4
        • 2.Qf3#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 6
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • S(c);N_GUARD::QAB1(A),XS(c)
    • S(c);N_GUARD::QAB1(A)
    • P(a);SBLOCK::QAR2(A)
    • P(a);OGATEB::QAR2(A)
  • Tries
    • Try
      • B(D);
      • Vars
        • P(a);SBLOCK::QAR2(A)
        • P(a);OGATEB::QAR2(A)
        • S(c);N_GUARD::QAB1(A),XS(c)
        • S(c);N_GUARD::QAB1(A)
      • Refutation
        • P(d);
    • Try
      • B(D);
      • Vars
        • P(a);SBLOCK::QAR2(A)
        • P(a);OGATEB::QAR2(A)
        • S(c);N_GUARD::QAB1(A),XS(c)
        • S(c);N_GUARD::QAB1(A)
      • Refutation
        • P(d);
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);P_SPINP(a),S_FLIGHT::QAR1(A),XP(a)
      • Refutation
        • K(b);S_FLIGHT,XQ(A)
    • Try
      • Q(A);
      • Vars
        • P(a);SBLOCK::QAR2(A)
        • P(a);OGATEB::QAR2(A)
        • S(c);N_GUARD::QAB1(A),XS(c)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • Q(A);
    • Vars
      • P(a);SBLOCK::QAR1(A)
      • P(a);OGATEB::QAR2(A)
      • S(c);N_GUARD::QAB1(A)
      • S(c);N_GUARD::QAB1(A),XS(c)
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