MESON Chess Problem Database

Problem Display
PID: 114192 (3R4/n1N1PK2/RP6/N1k2P2/p3B2Q/P7/1n4b1/3rr1q1 w - - 0 1)

Stocchi, Ottavio

Magyar Sakkelet, 1952

3R4/n1N1PK2/RP6/N1k2P2/p3B2Q/P7/1n4b1/3rr1q1

#2

11 + 8

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Ra1
      • 2.Rd5#
    • 1...Rb1
      • 2.Rd5#
    • 1...Rc1
      • 2.Rd5#
    • 1...Rd5
      • 2.Rxd5#
    • 1...Sd3
      • 2.Rd5#
    • 1...Sc4
      • 2.Sb7#
    • 1...Sb5
      • 2.Se6#
  • Keys
    • 1.Bd3!
      • threat
        • 2.Qb4#
      • 1...Rxe7+
        • 2.Qxe7#
      • 1...Bd5+
        • 2.Rxd5#
      • 1...Sxd3
        • 2.Qc4#
      • 1...Qd4
        • 2.Qxd4#
      • 1...Re4
        • 2.Rd5#
      • 1...Be4
        • 2.Se6#
      • 1...Sc4
        • 2.Qxc4#
      • 1...Sc6
        • 2.Sb7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 6
    • REMOVED MATES = 5
  • Sets
    • R(a);N_GUARD::R1(K)
    • R(a);N_GUARD::R1(K),XR(a)
    • S(d);S_CUTR(a)::R1(K)
    • S(d);SBLOCK::S(D)
    • S(h);SBLOCK::S(H)
  • Actual
    • B(B);
    • Threat
      • QAB1(C)
    • Vars
      • R(b);CHECK,OGATE,XP(I)::QAB(C),XR(b)
      • B(e);CHECK,N_GUARD::R1(K),XB(e)
      • S(d);N_GUARD,XB(B)::QAR1(C)
      • Q(c);N_GUARD::QAB1(C),XQ(c)
      • R(b);S_CUTB(e)::R1(K)
      • B(e);S_CUTR(b)::S(H)
      • S(d);N_GUARD::QAR1(C),XS(d)
      • S(h);SBLOCK,S_CUTB(e)::S(D)
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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).