MESON Chess Problem Database

Problem Display
PID: 198833 (1NQ2n2/1p3K2/bp1p2p1/qp1k2P1/1PNP4/2r2P2/P1R5/3R4 w - - 0 1)

Looijen, JW

Schuld MT, 1921

1NQ2n2/1p3K2/bp1p2p1/qp1k2P1/1PNP4/2r2P2/P1R5/3R4

#2

11 + 10

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Qxb4
      • 2.Sxb6#
    • 1...Qxa2
      • 2.Sxb6#
    • 1...Qa3
      • 2.Sxb6#
    • 1...Qa4
      • 2.Sxb6#
    • 1...Rxc2
      • 2.Se3#
    • 1...Re3
      • 2.Sxe3#
    • 1...Se6
      • 2.Qxe6#
    • 1...Sh7
      • 2.Qe6#
  • Keys
    • 1.Qg4!
      • 1...Rxf3+
        • 2.Qxf3#
      • 1...Kxc4
        • 2.d5#
      • 1...Qxb4
        • 2.Sxb6#
      • 1...Qxa2
        • 2.Sxb6#
      • 1...Rxc2
        • 2.Se3#
      • 1...Rxc4
        • 2.Qe4#
      • 1...bxc4
        • 2.Qe4#
      • 1...Qa3
        • 2.Sxb6#
      • 1...Qa4
        • 2.Sxb6#
      • 1...Ra3
        • 2.Qe4#
      • 1...Rb3
        • 2.Qe4#
      • 1...Rd3
        • 2.Qe4#
      • 1...Re3
        • 2.Sxe3#
      • 1...Se6
        • 2.Qxe6#
      • 1...Sd7
        • 2.Qe6#
      • 1...Sh7
        • 2.Qe6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • Q(b);N_GUARD,XP(E)::S(F),XP(f)
    • Q(b);N_GUARD,XP(B)::S(F),XP(f)
    • Q(b);N_GUARD::S(F),XP(f)
    • R(a);N_GUARD,XR(C)::S(F)
    • R(a);N_GUARD::S(F),XR(a)
    • S(j);N_GUARD::QAB1(K),XS(j)
    • S(j);N_GUARD::QAB1(K)
  • Actual
    • Q(K);
    • Vars
      • R(a);CHECK,OGATE,XP(D)::QAB(K),XR(a)
      • K(d);OGATE,P_SPINR(a),S_FLIGHT,XS(F)::QAR(K)+P(G)
      • Q(b);N_GUARD,XP(E)::S(F),XP(f)
      • Q(b);N_GUARD,XP(B)::S(F),XP(f)
      • R(a);N_GUARD,XR(C)::S(F)
      • R(a);XS(F)::QAB1(K)
      • P(c);SBLOCK,XS(F)::QAB1(K)
      • Q(b);N_GUARD::S(F),XP(f)
      • R(a);::QAB1(K)
      • R(a);N_GUARD::S(F),XR(a)
      • S(j);N_GUARD::QAB1(K),XS(j)
      • S(j);N_GUARD::QAB1(K)
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).