MESON Chess Problem Database

Problem Display
PID: 229163 (7n/2pQ1N1K/3p4/2B1pRpB/1N2k1rp/2Rq2p1/2p1r1pn/5b2 w - - 0 1)

Dulcsan, Geza

Nepszava, 1926

7n/2pQ1N1K/3p4/2B1pRpB/1N2k1rp/2Rq2p1/2p1r1pn/5b2

#2

8 + 15

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Qc4
      • 2.Rxc4#
    • 1...Qf3
      • 2.Rc4#
    • 1...Rf4
      • 2.Sxg5#
    • 1...dxc5
      • 2.Qxd3#
  • Tries
    • 1.Rf6?
      • threat
        • 2.Qf5#
      • 1...dxc5
        • 2.Qxd3#
      • 1...Qf3
        • 2.Rc4#
      • 1...Rf4
        • 2.Sxg5#
      • 1...Rf2!
  • Keys
    • 1.Rf3!
      • threat
        • 2.Qf5#
      • 1...Kxf3+
        • 2.Qf5#
      • 1...Qxf3
        • 2.Rc4#
      • 1...Sxf3
        • 2.Qxg4#
      • 1...dxc5
        • 2.Qxd3#
      • 1...Rf4
        • 2.Sxg5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • Q(f);N_GUARD::R(A),XQ(f)
    • Q(f);N_GUARD::R(A)
    • R(i);N_GUARD::S(G),XP(l)
    • P(m);OGATE,XB(C)::QAB1(F),XQ(f)
  • Tries
    • Try
      • R(D);
      • Threat
        • QAB1(F)
      • Vars
        • P(m);OGATE,XB(C)::QAB1(F),XQ(f)
        • Q(f);N_GUARD::R(A)
        • R(i);N_GUARD::S(G),XP(l)
      • Refutation
        • R(c);
  • Actual
    • R(D);
    • Threat
      • QAB1(F)
    • Vars
      • K(h);CHECK,P_SPINQ(f),P_SPINR(i),S_FLIGHT,XR(D)::QAR2(F)
      • Q(f);N_GUARD,SBLOCK,XR(D)::R(A)
      • S(e);N_GUARD,XR(D)::QAR2(F),XR(i)
      • P(m);OGATE,XB(C)::QAB1(F),XQ(f)
      • R(i);N_GUARD::S(G),XP(l)
HTML5 logo

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).