MESON Chess Problem Database

Problem Display
PID: 56720 (1b6/1K1Q4/1ppP1pN1/3k2n1/1R4Pp/1P3p2/2N1PB2/3r4 w - - 0 1)

Ivanov, Vadim Aleksandrovich

The Problemist, 2005

1b6/1K1Q4/1ppP1pN1/3k2n1/1R4Pp/1P3p2/2N1PB2/3r4

#2

10 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Bc7
      • 2.dxc7#
    • 1...Sh3
      • 2.e4#
    • 1...Se6
      • 2.Qxc6#
      • 2.e4#
    • 1...Sf7
      • 2.e4#
    • 1...Sh7
      • 2.e4#
    • 1...c5
      • 2.Se3#
  • Tries
    • 1.Bc5?
      • threat
        • 2.Qf5#
      • 1...Kxc5
        • 2.Qxc6#
      • 1...Bxd6
        • 2.Qxd6#
      • 1...bxc5
        • 2.Se3#
      • 1...Se6
        • 2.Qxc6#
      • 1...f5
        • 2.Qxf5#
      • 1...Sf7!
    • 1.Bxb6?
      • threat
        • 2.Se3#
      • 1...Rd4
        • 2.Rxd4#
      • 1...Rd3!
    • 1.Rc4?
      • threat
        • 2.Se3#
        • 2.Sb4#
      • 1...Rd3
        • 2.Sb4#
      • 1...c5
        • 2.Se3#
      • 1...Rd4!
    • 1.Rd4+?
      • 1...Kc5
        • 2.Qf5#
        • 2.Qxc6#
      • 1...Rxd4!
    • 1.Rf4?
      • threat
        • 2.Sb4#
      • 1...c5
        • 2.Se3#
      • 1...Rd4!
  • Keys
    • 1.Re4!
      • threat
        • 2.Qxc6#
      • 1...Kxe4
        • 2.Qf5#
      • 1...Sxe4
        • 2.Sb4#
      • 1...c5
        • 2.Qc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 4
  • Sets
    • B(i);OGATE::QAR(J)+P(G),XB(i)
    • S(e);N_GUARD::P(B)
    • P(g);SBLOCK::S(A)
  • Tries
    • Try
      • B(C);
      • Threat
        • QAR2(J)
      • Vars
        • K(d);P-FLIGHT,XB(C)::QAR1(J),XP(g)
        • B(i);OGATE,P_SPINB(i),XP(G)::QAR1(J),XB(i)
        • P(f);SBLOCK,XB(C)::S(A)
        • S(e);SBLOCK::QAB1(J),XP(g)
        • P(h);::QAR2(J),XP(h)
      • Refutation
        • S(e);
    • Try
      • B(C);XP(f)
      • Threat
        • S(A)
      • Vars
        • R(a);N_GUARD::R1(E),XR(a)
      • Refutation
        • R(a);
    • Try
      • R(E);
      • Threat
        • DUALS(2)
      • Vars
        • R(a);::S(A)
        • P(g);::S(A)
      • Refutation
        • R(a);
    • Try
      • R(E);CHECK
      • Refutation
        • R(a);XR(E)
    • Try
      • R(E);
      • Threat
        • S(A)
      • Vars
        • P(g);SBLOCK::S(A)
      • Refutation
        • R(a);
  • Actual
    • R(E);
    • Threat
      • QAB1(J),XP(g)
    • Vars
      • K(d);S_FLIGHT,XR(E)::QAB1(J)
      • S(e);SBLOCK,XR(E)::S(A)
      • P(g);::QAB1(J)
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).