MESON Chess Problem Database

Problem Display
PID: 170018 (B6q/1NBp3p/8/2RPn2Q/3pk1p1/1KP5/3PpnP1/5RbN w - - 0 1)

Vazquez, Luis

2nd Prize, Enroque!!, 1946

B6q/1NBp3p/8/2RPn2Q/3pk1p1/1KP5/3PpnP1/5RbN

#2

12 + 10

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Sd1
      • 2.Qf5#
    • 1...Sxh1
      • 2.Qf5#
    • 1...Sfd3
      • 2.Sg3#
      • 2.Sd6#
      • 2.Qf5#
    • 1...Sh3
      • 2.Qf5#
    • 1...Sed3
      • 2.Sg3#
  • Tries
    • 1.Sxf2+?
      • 1...Kf4
        • 2.Qxg4#
      • 1...Bxf2!
    • 1.Sd6+?
      • 1...Kf4
        • 2.Qf5#
        • 2.Qh6#
      • 1...Kd3!
  • Keys
    • 1.Rc4!
      • threat
        • 2.Rxd4#
      • 1...Kd3
        • 2.Rxd4#
      • 1...Kf4
        • 2.Rxd4#
      • 1...Kxd5
        • 2.Sd8#
      • 1...Sxh1
        • 2.Sc5#
      • 1...Sxc4
        • 2.Sc5#
      • 1...Sd1
        • 2.Sc5#
      • 1...Sfd3
        • 2.Sd6#
      • 1...Sh3
        • 2.Sc5#
      • 1...Sed3
        • 2.Sg3#
      • 1...Sf3
        • 2.Sc5#
      • 1...Sc6
        • 2.Sc5#
      • 1...Sg6
        • 2.Sc5#
      • 1...Sf7
        • 2.Sc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 3
    • ADDED MATES = 9
    • REMOVED MATES = 0
  • Sets
    • S(c);::QAB1(I)
    • S(c);XS(B)::QAB1(I)
    • S(g);SBLOCK::S(B)
  • Tries
    • Try
      • S(B);CHECK,XS(c)
      • Vars
        • K(e);P-FLIGHT,P_SPINS(g)::QAR1(I),XP(f)
      • Refutation
        • B(a);XS(B)
    • Try
      • S(J);CHECK
      • Refutation
        • K(e);S_FLIGHT
  • Actual
    • R(G);P_PINP(d)
    • Threat
      • R1(G),XP(d)
    • Vars
      • K(e);N_SPINP(d),S_FLIGHT::R1(G),XP(d)
      • K(e);P-FLIGHT,P_SPINS(c)::R(G),XP(d)
      • K(e);N_SPINP(d),P_SPINS(g),S_FLIGHT,XP(H)::B(L)+S(J)
      • S(c);XS(B)::S(J)
      • S(g);N_SPINP(d),XR(G)::S(J)
      • S(c);::S(J)
      • S(c);SBLOCK::S(J)
      • S(g);SBLOCK::S(B)
      • S(g);::S(J)
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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).