MESON Chess Problem Database

Problem Display
PID: 178602 (b4B1Q/4b3/2B2p2/2R1NPp1/1P1k1pP1/4pR2/5PK1/5N2 w - - 0 1)

Riczu, Lajos

Boletim da UBP, 1968

b4B1Q/4b3/2B2p2/2R1NPp1/1P1k1pP1/4pR2/5PK1/5N2

#2

12 + 7

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...exf2
      • 2.Rd3#
    • 1...e2
      • 2.Rd3#
  • Tries
    • 1.Qg8?
      • threat
        • 2.Qc4#
        • 2.Qd5#
      • 1...Bxc6
        • 2.Qc4#
      • 1...Bxc5!
  • Keys
    • 1.Rxe3!
      • threat
        • 2.Sf3#
        • 2.Rd3#
        • 2.Re4#
        • 2.Rc4#
        • 2.Rd5#
      • 1...Bxc6+
        • 2.Sxc6#
      • 1...f3+
        • 2.Sxf3#
      • 1...Bxc5
        • 2.Bxc5#
      • 1...fxe3
        • 2.fxe3#
      • 1...fxe5
        • 2.Qxe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 2
  • Sets
    • P(a);OGATE,XP(B)::R1(D)
    • P(a);OGATE::R1(D)
  • Tries
    • Try
      • Q(L);
      • Threat
        • DUALS(2)
      • Vars
        • B(g);P_PINR(D),XB(J)::QAR1(L)
      • Refutation
        • B(f);XR(G)
  • Actual
    • R(D);P_SPINB(J),XP(a)
    • Threat
      • DUALS(5)
    • Vars
      • B(g);CHECK,XB(J)::S(H),XB(g)
      • P(c);CHECK,N_PINB(J)::S(H),XP(c)
      • B(f);OGATE,XR(G)::B(K),XB(f)
      • P(c);XR(D)::P(B),XP(c)
      • P(e);OGATE,P_SPINP(e),XS(H)::QAB1(L),XP(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).