MESON Chess Problem Database

Problem Display
PID: 196932 (2B3n1/6B1/1KpR1r2/1P2k3/3N4/Q2Pb1P1/2r1R3/2q5 w - - 0 1)

van Ommeren, Aegidius Samuel

Tijdschrift vd NSB, 1919

2B3n1/6B1/1KpR1r2/1P2k3/3N4/Q2Pb1P1/2r1R3/2q5

#2

10 + 7

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Qb2
      • 2.Rxe3#
    • 1...Qa1
      • 2.Rxe3#
    • 1...Qb1
      • 2.Rxe3#
    • 1...Qd1
      • 2.Rxe3#
    • 1...Qf1
      • 2.Rxe3#
    • 1...Rd2
      • 2.Rxe3#
    • 1...Sh6
      • 2.Bxf6#
    • 1...Se7
      • 2.Bxf6#
  • Tries
    • 1.Re6+?
      • 1...Kd5
        • 2.Qd6#
      • 1...Kxd4!
  • Keys
    • 1.Rd8!
      • threat
        • 2.Qd6#
      • 1...c5+
        • 2.Sc6#
      • 1...Qxa3
        • 2.Rxe3#
      • 1...Rc5
        • 2.Sf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 8
  • Sets
    • Q(a);N_GUARD,P_PINP(F)::R(A),XB(c)
    • Q(a);N_GUARD::R(A),XB(c)
    • R(b);S_CUTQ(a)::R(A),XB(c)
    • S(g);N_GUARD::B(I),XR(f)
  • Tries
    • Try
      • R(H);CHECK
      • Vars
        • K(d);N_SPINB(c),N_SPINR(f),P-FLIGHT::QAR1(B)
      • Refutation
        • K(d);N_SPINB(c),S_FLIGHT,XS(E)
  • Actual
    • R(H);
    • Threat
      • QAB1(B)
    • Vars
      • P(e);CHECK,N_PINS(E)::S(E)
      • Q(a);N_GUARD,XQ(B)::R(A),XB(c)
      • R(b);N_PINS(E)::S(E)
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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).