MESON Chess Problem Database

Problem Display
PID: 149388 (8/QP2p3/4P1nB/4p3/2B1k1P1/4p1nN/2Nbb1P1/1K2R3 w - - 0 1)

del Favero, Marino

Il Due Mosse, 1954

8/QP2p3/4P1nB/4p3/2B1k1P1/4p1nN/2Nbb1P1/1K2R3

#2

11 + 8

15148 Sadier Collection 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Bxe1
      • 2.Qxe3#
    • 1...Bc3
      • 2.Qxe3#
    • 1...Bb4
      • 2.Qxe3#
    • 1...Ba5
      • 2.Qxe3#
    • 1...Bd1
      • 2.Sf2#
    • 1...Bf1
      • 2.Sf2#
    • 1...Bd3
      • 2.Sf2#
    • 1...Bf3
      • 2.Sf2#
    • 1...Sf4
      • 2.Sg5#
  • Tries
    • 1.Qc5?
      • threat
        • 2.Qd5#
        • 2.Qc6#
      • 1...Bxc4
        • 2.Sf2#
        • 2.Qxc4#
      • 1...Sf4
        • 2.Sg5#
      • 1...Bxg4!
    • 1.Qa4?
      • threat
        • 2.Qc6#
      • 1...Bxc4
        • 2.Qxc4#
      • 1...Sf4
        • 2.Sg5#
      • 1...Bxg4!
    • 1.Qa6?
      • threat
        • 2.Qc6#
      • 1...Bxc4
        • 2.Qxc4#
      • 1...Sf4
        • 2.Sg5#
      • 1...Bxg4!
  • Keys
    • 1.Sb4!
      • threat
        • 2.Bd5#
      • 1...Bd3+
        • 2.Bxd3#
      • 1...Bxb4
        • 2.Qxe3#
      • 1...Bxc4
        • 2.Sf2#
      • 1...Bxg4
        • 2.Bd3#
      • 1...Sf4
        • 2.Sg5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 6
  • Sets
    • B(a);N_GUARD,XR(B)::QAR1(J),XP(c)
    • B(a);N_GUARD::QAR1(J),XP(c)
    • B(b);P_SPINP(c)::S(E)
    • B(b);P_PINS(C),P_SPINP(c)::S(E)
    • S(g);SBLOCK::S(E)
  • Tries
    • Try
      • Q(J);
      • Threat
        • DUALS(2)
      • Vars
        • S(g);SBLOCK::S(E)
      • Refutation
        • B(b);P_SPINP(c),XP(G)
    • Try
      • Q(J);
      • Threat
        • QAB(J)
      • Vars
        • B(b);OGATE,P_SPINB(b),P_SPINP(c),XB(F)::QAR2(J),XB(b)
        • S(g);SBLOCK::S(E)
      • Refutation
        • B(b);P_SPINP(c),XP(G)
    • Try
      • Q(J);
      • Threat
        • QAB(J)
      • Vars
        • B(b);OGATE,P_SPINP(c),XB(F)::QAR2(J),XB(b)
        • S(g);SBLOCK::S(E)
      • Refutation
        • B(b);P_SPINP(c),XP(G)
  • Actual
    • S(C);
    • Threat
      • B(F)
    • Vars
      • B(b);CHECK,N_GUARD,P_SPINP(c)::B(F),XB(b)
      • B(a);N_GUARD,XS(C)::QAR1(J),XP(c)
      • B(b);P_SPINP(c),XB(F)::S(E)
      • B(b);N_GUARD,P_SPINP(c),XP(G)::B(F)
      • S(g);SBLOCK::S(E)
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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).