MESON Chess Problem Database

Problem Display
PID: 260167 (3N4/1p1n1p2/3K4/p2N1p2/3k1pP1/3P2p1/2P1Q2b/1n6 w - - 0 1)

Somma, Francesco

Teplitz-Schonauer Ty., 1922

3N4/1p1n1p2/3K4/p2N1p2/3k1pP1/3P2p1/2P1Q2b/1n6

#2

7 + 10

15601 Albrecht-Leiss-Degener Collection 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Sd2
      • 2.c3#
    • 1...Sa3
      • 2.c3#
    • 1...Sc5
      • 2.Qe5#
    • 1...Se5
      • 2.Qxe5#
    • 1...Sb6
      • 2.Qe5#
    • 1...Sf6
      • 2.Qe5#
    • 1...Sb8
      • 2.Qe5#
    • 1...Sf8
      • 2.Qe5#
    • 1...g2
      • 2.Qf2#
    • 1...f3
      • 2.Qe3#
    • 1...fxg4
      • 2.Qe4#
    • 1...b5
      • 2.Sc6#
    • 1...b6
      • 2.Sc6#
    • 1...f6
      • 2.Se6#
  • Tries
    • 1.gxf5?
      • threat
        • 2.Qe4#
      • 1...Sd2
        • 2.c3#
      • 1...Sc5
        • 2.Qe5#
      • 1...Sf6
        • 2.Qe5#
      • 1...Sc3!
  • Keys
    • 1.Qe1!
      • 1...fxg4
        • 2.Qe4#
      • 1...Sc3
        • 2.Qxc3#
      • 1...Bg1
        • 2.Qxg1#
      • 1...Sd2
        • 2.Qa1#
      • 1...Sa3
        • 2.Qc3#
        • 2.Qa1#
      • 1...Sc5
        • 2.Qe5#
      • 1...Se5
        • 2.Qxe5#
      • 1...Sb6
        • 2.Qe5#
      • 1...Sf6
        • 2.Qe5#
      • 1...Sb8
        • 2.Qe5#
      • 1...Sf8
        • 2.Qe5#
      • 1...g2
        • 2.Qf2#
      • 1...f3
        • 2.Qe3#
      • 1...a4
        • 2.Qb4#
      • 1...b5
        • 2.Sc6#
      • 1...b6
        • 2.Sc6#
      • 1...f6
        • 2.Se6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • S(a);N_GUARD::P(A)
    • S(i);N_GUARD::QAB1(B)
    • S(i);N_GUARD::QAB1(B),XS(i)
    • P(c);N_GUARD::QAB(B)
    • P(e);N_GUARD::QAB1(B)
    • P(g);N_GUARD,XP(D)::QAR1(B)
    • P(h);N_GUARD::S(G)
    • P(j);N_GUARD::S(G)
  • Tries
    • Try
      • P(D);XP(g)
      • Threat
        • QAR1(B)
      • Vars
        • S(a);N_GUARD::P(A)
        • S(i);N_GUARD::QAB1(B)
      • Refutation
        • S(a);
  • Actual
    • Q(B);
    • Vars
      • P(g);N_GUARD,XP(D)::QAR1(B)
      • S(a);N_GUARD::QAB1(B),XS(a)
      • B(b);N_GUARD::QAB(B),XB(b)
      • S(a);OGATE::QAB(B)
      • S(i);N_GUARD::QAB1(B)
      • S(i);N_GUARD::QAB1(B),XS(i)
      • P(c);N_GUARD::QAB(B)
      • P(e);N_GUARD::QAB1(B)
      • P(f);N_GUARD::QAR2(B)
      • P(h);N_GUARD::S(G)
      • P(j);N_GUARD::S(G)
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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).