MESON Chess Problem Database

Problem Display
PID: 109222 (rk6/p2K1p2/3pP1b1/2P1p3/5pRn/p5pR/P1P1PB2/Q4qbB w - - 0 1)

Rago, Istvan Stefano

Pesti Hirlap, 1935

rk6/p2K1p2/3pP1b1/2P1p3/5pRn/p5pR/P1P1PB2/Q4qbB

#2

11 + 13

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qxh3
      • 2.Qb1#
    • 1...Qb1
      • 2.Qxb1#
    • 1...Qxf2
      • 2.Qb1#
    • 1...Bxc2
      • 2.Rg8#
    • 1...Bd3
      • 2.Rg8#
    • 1...Bf5
      • 2.Rg8#
    • 1...Bh5
      • 2.Rg8#
    • 1...Sf5
      • 2.Rh8#
    • 1...gxf2
      • 2.Rb3#
    • 1...g2
      • 2.Rb3#
    • 1...f3
      • 2.Rb4#
    • 1...dxc5
      • 2.Qxe5#
  • Keys
    • 1.c6!
      • threat
        • 2.c7#
      • 1...Qg2
        • 2.Qb1#
      • 1...Be4
        • 2.Rg8#
      • 1...Sg2
        • 2.Rh8#
      • 1...Sf3
        • 2.Rh8#
      • 1...g2
        • 2.Rb3#
      • 1...f3
        • 2.Rb4#
      • 1...e4
        • 2.Qh8#
      • 1...d5
        • 2.Qxe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 10
  • Sets
    • Q(a);N_GUARD,XR(G)::QAB(A)
    • Q(a);N_GUARD::QAB(A),XQ(a)
    • Q(a);N_GUARD,XB(F)::QAB(A)
    • B(i);OGATE,XP(D)::R(H)
    • B(i);OGATE::R(H)
    • B(i);OGATE,P_PINP(J)::R(H)
    • S(f);OGATE::R(G)
    • P(d);OGATE,XB(F)::R(G)
    • P(d);OGATE::R(G)
    • P(e);OGATE::R(H)
    • P(h);OGATEB,XP(I)::QAB(A),XP(g)
  • Actual
    • P(I);
    • Threat
      • P(I)
    • Vars
      • Q(a);N_GUARD::QAB(A)
      • B(i);OGATE::R(H)
      • S(f);OGATE::R(G)
      • P(d);OGATE::R(G)
      • P(e);OGATE::R(H)
      • P(g);OGATE::QAR(A)
      • P(h);OGATEB::QAB(A),XP(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).