MESON Chess Problem Database

Problem Display
PID: 63014 (6K1/2nB1P2/3Rb2N/1p2k3/4Np2/2pP2n1/7Q/b7 w - - 0 1)

Taliani, Alfonso

Schakend Nederland, 1961

6K1/2nB1P2/3Rb2N/1p2k3/4Np2/2pP2n1/7Q/b7

#2

8 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Ba2
      • 2.Sg4#
    • 1...Bb3
      • 2.Sg4#
    • 1...Bc4
      • 2.Sg4#
    • 1...Bg4
      • 2.Sxg4#
    • 1...Bxf7+
      • 2.Sxf7#
    • 1...Sf5
      • 2.Sg4#
    • 1...f3
      • 2.Qxg3#
  • Tries
    • 1.Sg4+?
      • 1...Bxg4
        • 2.Qh8#
      • 1...Kf5!
    • 1.Qh5+?
      • 1...Bf5
        • 2.Sg4#
      • 1...Sf5
        • 2.Sg4#
      • 1...Sxh5!
  • Keys
    • 1.Qg1!
      • threat
        • 2.Qd4#
      • 1...Bxf7+
        • 2.Sxf7#
      • 1...f3
        • 2.Qxg3#
      • 1...Bd5
        • 2.Sg4#
      • 1...Se2
        • 2.Qg7#
      • 1...Sf5
        • 2.Sg4#
      • 1...Sd5
        • 2.Rxe6#
      • 1...c2
        • 2.Qxa1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 4
  • Sets
    • B(g);N_GUARD::S(E)
    • B(g);N_GUARD,N_PINP(G)::S(E),XB(g)
    • B(g);CHECK,XP(G)::S(E),XB(g)
    • S(c);P_SPINP(d),SBLOCK,S_CUTB(g)::S(E)
    • P(d);OGATEB,P_SPINS(c)::QAB(A),XS(c)
  • Tries
    • Try
      • S(E);CHECK
      • Vars
        • B(g);N_PINP(G),XS(E)::QAB(A)
      • Refutation
        • K(f);P-FLIGHT,P_SPINB(g)
    • Try
      • Q(A);CHECK
      • Vars
        • B(g);N_PINP(G),P_SPINB(g)::S(E)
        • S(c);P_SPINS(c)::S(E)
      • Refutation
        • S(c);XQ(A)
  • Actual
    • Q(A);
    • Threat
      • QAB1(A)
    • Vars
      • B(g);CHECK,XP(G)::S(E),XB(g)
      • P(d);OGATEB::QAB(A),XS(c)
      • B(g);N_GUARD::S(E)
      • S(c);OGATE::QAB(A)
      • S(c);SBLOCK,S_CUTB(g)::S(E)
      • S(h);N_GUARD,SBLOCK::R1(D),XB(g)
      • P(b);OGATEB::QAB(A),XB(a)
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).