MESON Chess Problem Database

Problem Display
PID: 41247 (3B1n2/1n1R1PK1/BR6/p1kP2N1/p2rp3/2q5/4NQ2/1b1rb3 w - - 0 1)

Szoghy, Jozsef

Munkassakk, 1936

3B1n2/1n1R1PK1/BR6/p1kP2N1/p2rp3/2q5/4NQ2/1b1rb3

#2

10 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Qb4
      • 2.Rc6#
    • 1...Rd3
      • 2.Sxe4#
    • 1...Ba2
      • 2.Sxe4#
    • 1...Se6+
      • 2.Sxe6#
    • 1...Sg6
      • 2.Se6#
    • 1...Sh7
      • 2.Se6#
  • Tries
    • 1.Rc7+?
      • 1...Kxd5
        • 2.Qf5#
      • 1...Kxb6!
  • Keys
    • 1.Qf6!
      • threat
        • 2.Qc6#
      • 1...Se6+
        • 2.Sxe6#
      • 1...Rxd5
        • 2.Rc7#
      • 1...Sxd8
        • 2.Qd6#
      • 1...Sd6
        • 2.Qxd6#
      • 1...R4d2
        • 2.Qxc3#
      • 1...R4d3
        • 2.Sxe4#
      • 1...Rb4
        • 2.Rc6#
      • 1...Rc4
        • 2.Rb5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 5
  • Sets
    • Q(d);SBLOCK::R1(F)
    • R(b);S_CUTB(a)::S(D),XP(g)
    • B(a);N_GUARD::S(D),XP(g)
    • S(k);CHECK,N_GUARD::S(D),XS(k)
    • S(k);N_GUARD::S(D)
  • Tries
    • Try
      • R(G);CHECK
      • Vars
        • K(i);N_SPINR(f),P-FLIGHT,XP(C)::QAR2(B)
      • Refutation
        • K(i);S_FLIGHT,XR(F)
  • Actual
    • Q(B);N_PINR(f)
    • Threat
      • QAR1(B)
    • Vars
      • S(k);CHECK,N_GUARD::S(D),XS(k)
      • R(f);P_PINQ(B),SBLOCK,XP(C)::R(G)
      • S(j);N_GUARD,XB(J)::QAB1(B)
      • S(j);N_GUARD::QAB1(B),XS(j)
      • R(f);OGATE,P_PINQ(B)::QAR2(B),XQ(d)
      • R(f);N_GUARD,P_PINQ(B),S_CUTB(a)::S(D),XP(g)
      • R(f);P_PINQ(B),SBLOCK::R1(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).