MESON Chess Problem Database

Problem Display
PID: 118330 (7Q/5B2/4n3/1RBr4/Pbk3r1/2p1P3/2P5/KN1Rb3 w - - 0 1)

Rodriguez, EM

Boletim da UBP, 1991

7Q/5B2/4n3/1RBr4/Pbk3r1/2p1P3/2P5/KN1Rb3

#2

10 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Ba3
      • 2.Sxa3#
    • 1...Ba5
      • 2.Sa3#
    • 1...Sf4
      • 2.Rd4#
      • 2.Qd4#
    • 1...Sxc5
      • 2.Bxd5#
    • 1...Sg5
      • 2.Bxd5#
    • 1...Sg7
      • 2.Bxd5#
    • 1...Sd8
      • 2.Bxd5#
    • 1...Sf8
      • 2.Bxd5#
  • Tries
    • 1.Bxb4?
      • threat
        • 2.Sa3#
      • 1...Rxd1
        • 2.Qc8#
      • 1...Rxb5!
    • 1.Bxe6?
      • threat
        • 2.Bxd5#
      • 1...Rd4
        • 2.Rxd4#
        • 2.Qxd4#
      • 1...Rg5
        • 2.Rd4#
        • 2.Qd4#
      • 1...Bd2!
  • Keys
    • 1.Qc8!
      • threat
        • 2.Rxb4#
      • 1...Rxd1
        • 2.Bxb4#
      • 1...Rxc5
        • 2.Bxe6#
      • 1...Bxc5
        • 2.Sa3#
      • 1...Sxc5
        • 2.Bxd5#
      • 1...Rd2
        • 2.Bxb4#
      • 1...Rd3
        • 2.Bxb4#
      • 1...Rdd4
        • 2.Bxb4#
      • 1...Ba3
        • 2.Sxa3#
      • 1...Ba5
        • 2.Sa3#
      • 1...Sc7
        • 2.Qxg4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 4
  • Sets
    • B(c);N_GUARD::S(B),XB(c)
    • B(c);N_GUARD::S(B)
    • S(g);OGATE,P_SPINR(f),XB(H)::B(I),XR(f)
    • S(g);OGATE,P_SPINR(f)::B(I),XR(f)
  • Tries
    • Try
      • B(H);XB(c)
      • Threat
        • S(B)
      • Vars
        • R(f);N_GUARD,P_PINS(B),P_SPINS(g),XR(C)::QAR(J)
      • Refutation
        • R(f);P_SPINS(g),XR(G)
    • Try
      • B(I);P_PINR(f),XS(g)
      • Threat
        • B(I),XR(f)
      • Refutation
        • B(a);
  • Actual
    • Q(J);
    • Threat
      • R1(G),XB(c)
    • Vars
      • R(f);N_GUARD,P_PINS(B),P_SPINS(g),XR(C)::QAR(J)+B(H),XB(c)
      • R(f);OGATEB,P_SPINR(f),P_SPINS(g),XB(H)::B(I),XS(g)
      • B(c);N_GUARD,P_SPINB(c),XB(H)::S(B)
      • S(g);OGATE,P_SPINR(f),P_SPINS(g),XB(H)::B(I),XR(f)
      • R(f);N_GUARD,P_SPINS(g)::QAR(J)+B(H),XB(c)
      • B(c);N_GUARD::S(B),XB(c)
      • B(c);N_GUARD::S(B)
      • S(g);OGATE,P_SPINR(f)::QAR(J),XR(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).