MESON Chess Problem Database

Problem Display
PID: 10516 (8/rpp1p3/P3Q1PK/7B/1q1pNp1k/8/6Pn/6nN w - - 0 1)

Mansfield, Comins

4th HM., Magyar Sakkelet, 1965

8/rpp1p3/P3Q1PK/7B/1q1pNp1k/8/6Pn/6nN

#2

8 + 10

4054 Complete Mansfield/III 1999

SOLUTION

  • SOUND
  • Sets
    • 1...Qe1
      • 2.Qxe7#
    • 1...Qd2
      • 2.Qxe7#
    • 1...Qc3
      • 2.Qxe7#
    • 1...Qb1
      • 2.Qxe7#
    • 1...Qb2
      • 2.Qxe7#
    • 1...Qb3
      • 2.Qxe7#
    • 1...Qa4
      • 2.Qxe7#
    • 1...Qc4
      • 2.Qxe7#
    • 1...Se2
      • 2.Qh3#
    • 1...Sgf3
      • 2.Qh3#
    • 1...Sh3
      • 2.Qxh3#
    • 1...Sf1
      • 2.Qg4#
    • 1...Shf3
      • 2.Qg4#
    • 1...Sg4+
      • 2.Qxg4#
    • 1...f3
      • 2.g3#
    • 1...c5
      • 2.Qxe7#
  • Tries
    • 1.Sd2?
      • threat
        • 2.Qe1#
      • 1...Sg4+
        • 2.Qxg4#
      • 1...Qxd2
        • 2.Qxe7#
      • 1...Qc3
        • 2.Qxe7#
      • 1...Qb1
        • 2.Qxe7#
      • 1...Qb3
        • 2.Qxe7#
      • 1...Se2
        • 2.Qh3#
      • 1...Sgf3
        • 2.Qh3#
      • 1...Sh3
        • 2.Qxh3#
      • 1...Sf1
        • 2.Qg4#
      • 1...Shf3
        • 2.Qg4#
      • 1...f3
        • 2.g3#
      • 1...Qa3!
    • 1.Sc5?
      • threat
        • 2.Qxe7#
      • 1...Sg4+
        • 2.Qxg4#
      • 1...Qxc5
        • 2.Qe1#
      • 1...Qe1
        • 2.Qxe1#
      • 1...Qb6
        • 2.Qe1#
      • 1...Sgf3
        • 2.Qh3#
      • 1...Sh3
        • 2.Qxh3#
      • 1...Shf3
        • 2.Qg4#
      • 1...Rxa6!
    • 1.Sd6?
      • threat
        • 2.Sf5#
        • 2.Qxe7#
      • 1...Sg4+
        • 2.Qxg4#
      • 1...Qxd6
        • 2.Qe1#
      • 1...cxd6
        • 2.Qxe7#
      • 1...exd6
        • 2.Qf6#
        • 2.Qe7#
      • 1...Qe1
        • 2.Sf5#
        • 2.Qxe1#
      • 1...Qc5
        • 2.Qe1#
      • 1...Qb1
        • 2.Qxe7#
      • 1...Qb5
        • 2.Qe1#
      • 1...Sgf3
        • 2.Sf5#
        • 2.Qh3#
      • 1...Sh3
        • 2.Sf5#
        • 2.Qxh3#
      • 1...Shf3
        • 2.Sf5#
        • 2.Qg4#
      • 1...Qa5!
  • Keys
    • 1.Sc3!
      • threat
        • 2.Qe1#
      • 1...Sg4+
        • 2.Qxg4#
      • 1...Qxc3
        • 2.Qxe7#
      • 1...Qb1
        • 2.Qxe7#
      • 1...Qb2
        • 2.Qxe7#
      • 1...Se2
        • 2.Qh3#
      • 1...Sgf3
        • 2.Qh3#
      • 1...Sh3
        • 2.Qxh3#
      • 1...Sf1
        • 2.Qg4#
      • 1...Shf3
        • 2.Qg4#
      • 1...f3
        • 2.g3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 6
  • Sets
    • Q(c);N_GUARD::QAB(F),XP(j)
    • Q(c);N_GUARD,SBLOCK::QAB(F),XP(j)
    • S(a);N_GUARD::QAR1(F)
    • S(a);N_GUARD::QAR1(F),XS(a)
    • S(b);N_GUARD::QAR1(F)
    • S(b);CHECK,N_GUARD::QAR1(F),XS(b)
    • P(e);N_GUARD::P(B)
    • P(i);S_CUTQ(c)::QAB(F),XP(j)
  • Tries
    • Try
      • S(C);
      • Threat
        • QAB(F)
      • Vars
        • S(b);CHECK,N_GUARD::QAR1(F),XS(b)
        • Q(c);N_GUARD,XS(C)::QAB(F),XP(j)
        • Q(c);N_GUARD::QAB(F),XP(j)
        • S(a);N_GUARD::QAR1(F)
        • S(a);N_GUARD::QAR1(F),XS(a)
        • S(b);N_GUARD::QAR1(F)
        • P(e);N_GUARD::P(B)
      • Refutation
        • Q(c);
    • Try
      • S(C);
      • Threat
        • QAB(F),XP(j)
      • Vars
        • S(b);CHECK,N_GUARD::QAR1(F),XS(b)
        • Q(c);N_GUARD,XS(C)::QAB(F)
        • Q(c);N_GUARD::QAB(F),XQ(c)
        • Q(c);N_GUARD::QAB(F)
        • S(a);N_GUARD::QAR1(F)
        • S(a);N_GUARD::QAR1(F),XS(a)
        • S(b);N_GUARD::QAR1(F)
      • Refutation
        • R(g);XP(E)
    • Try
      • S(C);
      • Threat
        • DUALS(2)
      • Vars
        • S(b);CHECK,N_GUARD::QAR1(F),XS(b)
        • Q(c);N_GUARD,XS(C)::QAB(F)
        • P(i);XS(C)::QAB(F),XP(j)
        • Q(c);N_GUARD::QAB(F)
        • Q(c);::QAB(F),XP(j)
      • Refutation
        • Q(c);
  • Actual
    • S(C);
    • Threat
      • QAB(F)
    • Vars
      • S(b);CHECK,N_GUARD::QAR1(F),XS(b)
      • Q(c);N_GUARD,XS(C)::QAB(F),XP(j)
      • Q(c);N_GUARD::QAB(F),XP(j)
      • S(a);N_GUARD::QAR1(F)
      • S(a);N_GUARD::QAR1(F),XS(a)
      • S(b);N_GUARD::QAR1(F)
      • P(e);N_GUARD::P(B)
HTML5 logo

Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).