MESON Chess Problem Database

Problem Display
PID: 193832 (b3B1Nq/p5p1/Pn1p3p/1K1k1N2/2p1R3/6PP/QbP5/R7 w - - 0 1)

Hawkins, Xenophon

Pittsburgh Gazette-Times, 1916

b3B1Nq/p5p1/Pn1p3p/1K1k1N2/2p1R3/6PP/QbP5/R7

#2

11 + 10

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Bc6+
      • 2.Bxc6#
    • 1...Sa4
      • 2.Qxc4#
    • 1...Sd7
      • 2.Qxc4#
    • 1...Sc8
      • 2.Qxc4#
  • Tries
    • 1.Rd1+?
      • 1...Bd4
        • 2.Rdxd4#
      • 1...Kxe4!
    • 1.Ree1?
      • threat
        • 2.Sge7#
        • 2.Bf7#
      • 1...Bc6+
        • 2.Bxc6#
      • 1...Be5
        • 2.Bf7#
      • 1...Bf6
        • 2.Bf7#
      • 1...Sc8
        • 2.Bf7#
        • 2.Qxc4#
      • 1...Qxg8!
    • 1.Re2?
      • threat
        • 2.Sge7#
        • 2.Bf7#
      • 1...Bc6+
        • 2.Bxc6#
      • 1...Be5
        • 2.Bf7#
      • 1...Bf6
        • 2.Bf7#
      • 1...Sc8
        • 2.Bf7#
        • 2.Qxc4#
      • 1...Qxg8!
    • 1.Re3?
      • threat
        • 2.Sge7#
        • 2.Bf7#
      • 1...Bc6+
        • 2.Bxc6#
      • 1...Be5
        • 2.Bf7#
      • 1...Bf6
        • 2.Bf7#
      • 1...Sc8
        • 2.Bf7#
        • 2.Qxc4#
      • 1...Qxg8!
  • Keys
    • 1.Rae1!
      • threat
        • 2.Sfe7#
        • 2.Sge7#
        • 2.Bf7#
      • 1...Bc6+
        • 2.Bxc6#
      • 1...Qxg8
        • 2.Se7#
      • 1...Be5
        • 2.Bf7#
      • 1...Bf6
        • 2.Bf7#
      • 1...Sc8
        • 2.Bf7#
        • 2.Qxc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 3
  • Sets
    • B(i);CHECK,N_GUARD::B(J),XB(i)
    • S(d);N_GUARD::QAB1(B),XP(b)
  • Tries
    • Try
      • R(A);CHECK
      • Vars
        • B(a);N_GUARD,P_SPINB(a)::R1(A),XB(a)
      • Refutation
        • K(c);N_SPINP(b),S_FLIGHT,XR(F)
    • Try
      • R(F);
      • Threat
        • DUALS(2)
      • Vars
        • B(i);CHECK,N_GUARD::B(J),XB(i)
        • B(a);::B(J)
      • Refutation
        • Q(j);XS(K)
    • Try
      • R(F);
      • Threat
        • DUALS(2)
      • Vars
        • B(i);CHECK,N_GUARD::B(J),XB(i)
        • B(a);::B(J)
      • Refutation
        • Q(j);XS(K)
    • Try
      • R(F);
      • Threat
        • DUALS(2)
      • Vars
        • B(i);CHECK,N_GUARD::B(J),XB(i)
        • B(a);::B(J)
      • Refutation
        • Q(j);XS(K)
  • Actual
    • R(A);
    • Threat
      • DUALS(3)
    • Vars
      • B(i);CHECK,N_GUARD::B(J),XB(i)
      • Q(j);XS(K)::S(H)
      • B(a);::B(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).