MESON Chess Problem Database

Problem Display
PID: 71644 (8/4N3/2Kp4/1pb1p1q1/1r2k2r/1p1pB3/3R2P1/4QN2 w - - 0 1)

Chicco, Adriano

1st Prize, Die Schwalbe 102. TT, 1952

8/4N3/2Kp4/1pb1p1q1/1r2k2r/1p1pB3/3R2P1/4QN2

#2

7 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Qf6
      • 2.Sg3#
    • 1...Qh6
      • 2.Sg3#
    • 1...Qxe7
      • 2.Sg3#
    • 1...Qg3
      • 2.Sxg3#
    • 1...Qf5
      • 2.Sg3#
    • 1...Qh5
      • 2.Sg3#
    • 1...Rd4
      • 2.Bxg5#
    • 1...Rf4
      • 2.Bxc5#
  • Tries
    • 1.Bxc5+?
      • 1...Qe3
        • 2.Qxe3#
      • 1...Kf4!
    • 1.Bxg5+?
      • 1...Be3
        • 2.Qxe3#
      • 1...Kd4!
  • Keys
    • 1.Re2!
      • threat
        • 2.Sd2#
      • 1...Qxe3
        • 2.Qxh4#
      • 1...Qxe7
        • 2.Sg3#
      • 1...Bxe3
        • 2.Qxb4#
      • 1...dxe2
        • 2.Qb1#
      • 1...d2
        • 2.Qb1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 7
  • Sets
    • Q(i);N_GUARD::S(B)
    • Q(i);N_GUARD,XS(G)::S(B)
    • Q(i);N_GUARD::S(B),XQ(i)
    • R(c);SBLOCK,S_CUTB(g)::QAR(A)+B(E),XQ(i)
    • R(e);SBLOCK,S_CUTQ(i)::QAR(A)+B(E),XB(g)
  • Tries
    • Try
      • B(E);CHECK,XB(g)
      • Vars
        • Q(i);N_GUARD,P_SPINQ(i)::QAR1(A),XQ(i)
      • Refutation
        • K(d);P-FLIGHT
    • Try
      • B(E);CHECK,XQ(i)
      • Vars
        • B(g);N_GUARD,P_SPINB(g)::QAR1(A),XB(g)
      • Refutation
        • K(d);P-FLIGHT,P_SPINP(b)
  • Actual
    • R(C);
    • Threat
      • S(B)
    • Vars
      • Q(i);N_GUARD,P_SPINQ(i),XB(E)::QAR(A),XR(e)
      • Q(i);N_GUARD,XS(G)::S(B)
      • B(g);N_GUARD,P_SPINB(g),XB(E)::QAR(A),XR(c)
      • P(b);OGATEB,XR(C)::QAB(A)
      • P(b);OGATEB::QAB(A)
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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).