MESON Chess Problem Database

Problem Display
PID: 7735 (8/K1p5/8/R2N4/2kp2pQ/R4p1p/7q/2n1B3 w - - 0 1)

Rothwell, Stephen

Kieler Nachrichten, 1993

8/K1p5/8/R2N4/2kp2pQ/R4p1p/7q/2n1B3

#2

6 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...g3
      • 2.Se3#
      • 2.Rc3#
    • 1...c5
      • 2.Sb6#
    • 1...c6
      • 2.Sb6#
  • Tries
    • 1.Qf6?
      • threat
        • 2.Qa6#
        • 2.Qc6#
      • 1...Sb3
        • 2.Qa6#
      • 1...c5
        • 2.Sb6#
      • 1...Qb2
        • 2.Qc6#
      • 1...Sd3
        • 2.Qa6#
      • 1...d3
        • 2.Se3#
        • 2.Rc3#
        • 2.Qc3#
      • 1...c6
        • 2.Sb6#
        • 2.Qxc6#
      • 1...Qd6!
    • 1.Qh6?
      • threat
        • 2.Qa6#
        • 2.Qc6#
      • 1...Sb3
        • 2.Qa6#
      • 1...c5
        • 2.Sb6#
      • 1...Qd6
        • 2.Qxc1#
      • 1...Qb2
        • 2.Qc6#
      • 1...Sd3
        • 2.Qa6#
      • 1...c6
        • 2.Sb6#
        • 2.Qxc6#
      • 1...d3!
  • Keys
    • 1.Qh7!
      • 1...d3
        • 2.Qe4#
      • 1...c5
        • 2.Sb6#
      • 1...Qd6
        • 2.Qc2#
      • 1...Qg1
        • 2.Qc2#
        • 2.Qxc7#
      • 1...Qg3
        • 2.Qc2#
      • 1...Qf4
        • 2.Qc2#
      • 1...Qe5
        • 2.Qc2#
      • 1...Qh1
        • 2.Qc2#
        • 2.Qxc7#
      • 1...Qa2
        • 2.Qxc7#
      • 1...Qb2
        • 2.Qxc7#
      • 1...Qc2
        • 2.Qxc2#
        • 2.Qxc7#
      • 1...Qd2
        • 2.Qxc7#
      • 1...Qe2
        • 2.Qxc7#
      • 1...Qf2
        • 2.Qxc7#
      • 1...Qg2
        • 2.Qxc7#
      • 1...Sa2
        • 2.Qd3#
      • 1...Se2
        • 2.Qd3#
      • 1...Sb3
        • 2.R3a4#
      • 1...Sd3
        • 2.Qxd3#
      • 1...f2
        • 2.Qc2#
      • 1...g3
        • 2.Qxc7#
      • 1...c6
        • 2.Sb6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 17
    • REMOVED MATES = 0
  • Sets
    • P(h);N_GUARD::S(E)
  • Tries
    • Try
      • Q(C);
      • Threat
        • DUALS(2)
      • Vars
        • S(a);::QAB(C)
        • P(h);N_GUARD::S(E)
        • Q(b);::QAR2(C)
      • Refutation
        • Q(b);
    • Try
      • Q(C);
      • Threat
        • DUALS(2)
      • Vars
        • S(a);::QAB(C)
        • P(h);N_GUARD::S(E)
        • Q(b);N_GUARD::QAR(C),XS(a)
        • Q(b);::QAR2(C)
      • Refutation
        • P(f);
  • Actual
    • Q(C);
    • Vars
      • P(f);OGATEB::QAR2(C)
      • P(h);N_GUARD::S(E)
      • Q(b);N_GUARD::QAR2(C)
      • Q(b);N_GUARD::QAR(C),XP(h)
      • S(a);N_GUARD::QAB1(C)
      • S(a);SBLOCK::R(B)
      • S(a);N_GUARD::QAB1(C),XS(a)
      • P(c);S_CUTQ(b)::QAR2(C)
      • P(g);S_CUTQ(b)::QAR(C),XP(h)
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