MESON Chess Problem Database

Problem Display
PID: 139298 (5N2/b2p4/2P5/R1PpNRp1/3k4/1P2pB2/1K1pn2r/5Q2 w - - 0 1)

Maleika, Gerhard

Rochade Europa, 2010

5N2/b2p4/2P5/R1PpNRp1/3k4/1P2pB2/1K1pn2r/5Q2

#2

10 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Sg1
      • 2.Qd3#
    • 1...Sc3
      • 2.Qd3#
    • 1...Sg3
      • 2.Qd3#
    • 1...d1Q
      • 2.Qxd1#
    • 1...d1S+
      • 2.Qxd1#
    • 1...d1B
      • 2.Qxd1#
    • 1...d1R
      • 2.Qxd1#
    • 1...dxc6
      • 2.Se6#
    • 1...d6
      • 2.Se6#
  • Tries
    • 1.Sfxd7?
      • threat
        • 2.Ra4#
      • 1...d1S+
        • 2.Qxd1#
      • 1...Sc3
        • 2.Qd3#
      • 1...Bxc5!
    • 1.cxd7?
      • threat
        • 2.Se6#
      • 1...d1S+
        • 2.Qxd1#
      • 1...Sf4
        • 2.Sc6#
      • 1...Rh6!
  • Keys
    • 1.Sexd7!
      • threat
        • 2.Rxd5#
      • 1...d1S+
        • 2.Qxd1#
      • 1...Kd3
        • 2.Rxd5#
      • 1...Sc3
        • 2.Se6#
      • 1...Sf4
        • 2.Ra4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 7
  • Sets
    • S(b);OGATE::QAR1(A)
    • P(a);OGATEB::QAR(A),XQ(a)
    • P(a);CHECK,OGATEB::QAR(A),XS(a)
    • P(a);OGATEB::QAR(A),XB(a)
    • P(a);OGATEB::QAR(A),XR(a)
    • P(i);N_GUARD,XP(I)::S(J)
    • P(i);N_GUARD::S(J)
  • Tries
    • Try
      • S(J);XP(i)
      • Threat
        • R(E)
      • Vars
        • P(a);CHECK,OGATEB::QAR(A),XS(a)
        • S(b);OGATE::QAR1(A)
      • Refutation
        • B(h);XP(F)
    • Try
      • P(I);XP(i)
      • Threat
        • S(J)
      • Vars
        • P(a);CHECK,OGATEB::QAR(A),XS(a)
        • S(b);::S(G)
      • Refutation
        • R(c);
  • Actual
    • S(G);XP(i)
    • Threat
      • R1(H),XP(f)
    • Vars
      • P(a);CHECK,OGATEB::QAR(A),XS(a)
      • K(e);P-FLIGHT,P_SPINS(b)::R(H),XP(f)
      • S(b);::S(J)
      • S(b);::R(E)
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).