MESON Chess Problem Database

Problem Display
PID: 144197 (3B2N1/6p1/q3P1R1/2R1K2k/3p1p2/4N1p1/2BrPr1b/3Q4 w - - 0 1)

Mari, Alberto

Magyar Sakkvilag, 1930

3B2N1/6p1/q3P1R1/2R1K2k/3p1p2/4N1p1/2BrPr1b/3Q4

#2

10 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Qxe2
      • 2.Kd6#
    • 1...Qa1
      • 2.Kd6#
    • 1...Qa4
      • 2.Kd6#
    • 1...Qd6+
      • 2.Kxd6#
    • 1...Qxe6+
      • 2.Kxe6#
    • 1...Rdxe2
      • 2.Kxd4#
    • 1...Rfxe2
      • 2.Kxf4#
    • 1...Rg2
      • 2.Kxf4#
    • 1...f3
      • 2.Kf4#
  • Keys
    • 1.Sg2!
      • threat
        • 2.Rg5#
      • 1...Qxe2+
        • 2.Kd6#
      • 1...Qd6+
        • 2.Kxd6#
      • 1...Qxe6+
        • 2.Kxe6#
      • 1...Rdxe2+
        • 2.Kxd4#
      • 1...Rfxe2+
        • 2.Kxf4#
      • 1...Rxg2
        • 2.Kxf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 3
  • Sets
    • Q(h);P_PINS(D),P_SPINQ(h),XP(C)::R(E)+K(F)
    • Q(h);::R(E)+K(F)
    • Q(h);CHECK::R(E)+K(F),XQ(h)
    • Q(h);CHECK,XP(G)::R(E)+K(F),XQ(h)
    • R(a);P_PINS(D),P_SPINR(a),XP(C)::R(E)+K(F),XP(e)
    • R(b);P_PINS(D),P_SPINR(b),XP(C)::R(E)+K(F),XP(f)
    • R(b);::R(E)+K(F),XP(f)
    • P(f);::R(E)+K(F)
  • Actual
    • S(D);
    • Threat
      • R1(H)
    • Vars
      • Q(h);CHECK,P_SPINQ(h),XP(C)::R(E)+K(F)
      • Q(h);CHECK::R(E)+K(F),XQ(h)
      • Q(h);CHECK,XP(G)::R(E)+K(F),XQ(h)
      • R(a);CHECK,P_SPINR(a),XP(C)::R(E)+K(F),XP(e)
      • R(b);CHECK,P_SPINR(b),XP(C)::R(E)+K(F),XP(f)
      • R(b);XS(D)::R(E)+K(F),XP(f)
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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).