MESON Chess Problem Database

Problem Display
PID: 16849 (K6B/3p4/Q7/2Pkn2b/1P6/7B/2N2N1b/5n2 w - - 0 1)

Mansfield, Comins

Adventures in Composition, 1944

K6B/3p4/Q7/2Pkn2b/1P6/7B/2N2N1b/5n2

#2

8 + 6

3550 Complete Mansfield/II 1997

SOLUTION

  • SOUND
  • Sets
    • 1...Sc4
      • 2.Qb7#
    • 1...Sg4
      • 2.Bg2#
    • 1...Sc6
      • 2.Qa2#
  • Tries
    • 1.Se3+?
      • 1...Kd4
        • 2.Qd3#
      • 1...Sxe3!
    • 1.Se4?
      • threat
        • 2.Sc3#
        • 2.Sf6#
      • 1...Sd3
        • 2.Sc3#
      • 1...Sf3
        • 2.Sc3#
      • 1...Sc4
        • 2.Sc3#
        • 2.Qb7#
      • 1...Sg4
        • 2.Sc3#
      • 1...Sc6
        • 2.Sc3#
      • 1...Sg6
        • 2.Sc3#
      • 1...Sf7
        • 2.Sc3#
      • 1...Kxe4!
    • 1.Bxf1?
      • threat
        • 2.Qd6#
      • 1...Sc6
        • 2.Bc4#
        • 2.Qc4#
        • 2.Qa2#
      • 1...d6
        • 2.Qxd6#
      • 1...Sd3
        • 2.Se3#
      • 1...Sf3
        • 2.Se3#
        • 2.Bc4#
      • 1...Sc4
        • 2.Bxc4#
      • 1...Sg4
        • 2.Bg2#
        • 2.Bc4#
      • 1...Sg6
        • 2.Se3#
        • 2.Bc4#
      • 1...Sf7
        • 2.Se3#
        • 2.Bc4#
      • 1...Be2!
  • Keys
    • 1.Sa3!
      • threat
        • 2.Qd6#
      • 1...Kd4
        • 2.Qd3#
      • 1...Sd3
        • 2.Qb7#
      • 1...Sf3
        • 2.Qb7#
      • 1...Sc4
        • 2.Qb7#
      • 1...Sg4
        • 2.Bg2#
      • 1...Sc6
        • 2.Qc4#
      • 1...Sg6
        • 2.Qb7#
      • 1...Sf7
        • 2.Qb7#
      • 1...d6
        • 2.Qxd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • S(d);N_GUARD,SBLOCK::QAB(F)
    • S(d);N_GUARD,S_CUTB(e)::B(C)
  • Tries
    • Try
      • S(A);CHECK
      • Vars
        • K(c);P-FLIGHT,P_SPINS(d)::QAR1(F)
      • Refutation
        • S(a);XS(A)
    • Try
      • S(B);
      • Threat
        • DUALS(2)
      • Vars
        • S(d);::S(B)
      • Refutation
        • K(c);S_FLIGHT,XS(B)
    • Try
      • B(C);XS(a)
      • Threat
        • QAR1(F)
      • Vars
        • P(f);::QAR1(F),XP(f)
        • S(d);::S(A)
        • S(d);N_GUARD::B(C),XS(d)
      • Refutation
        • B(e);
  • Actual
    • S(A);
    • Threat
      • QAR1(F)
    • Vars
      • K(c);P-FLIGHT,P_SPINS(d)::QAR1(F)
      • S(d);N_GUARD::QAB(F)
      • S(d);N_GUARD,S_CUTB(e)::B(C)
      • S(d);N_GUARD,SBLOCK::QAB1(F)
      • P(f);::QAR1(F),XP(f)
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