MESON Chess Problem Database

Problem Display
PID: 66940 (B7/3Pr1p1/1K1Np1N1/2P2nQ1/2Pk1p2/p4Rb1/3P4/1n1R4 w - - 0 1)

Pankratiev, Aleksandr Nikolaevich

4th Prize, Schulte MT, 1993

B7/3Pr1p1/1K1Np1N1/2P2nQ1/2Pk1p2/p4Rb1/3P4/1n1R4

#2

11 + 9

5416 FIDE Album (1992-1994) (Annexe) 2003

SOLUTION

  • SOUND
  • Sets
    • 1...Be1
      • 2.Qxf4#
    • 1...Bf2
      • 2.Qxf4#
    • 1...Bh4
      • 2.Qxf4#
    • 1...Sxd2
      • 2.Rxd2#
    • 1...Sc3
      • 2.dxc3#
    • 1...Sh4
      • 2.Qe5#
    • 1...Sh6
      • 2.Qe5#
  • Tries
    • 1.Be4?
      • threat
        • 2.Rd3#
      • 1...Se3
        • 2.Qe5#
      • 1...Sxd6!
    • 1.Rc1?
      • threat
        • 2.Sb5#
      • 1...Sxd6
        • 2.Qe5#
      • 1...Sc3
        • 2.dxc3#
      • 1...Se3!
    • 1.Rc3?
      • threat
        • 2.Sb5#
      • 1...Sxd6
        • 2.Qe5#
      • 1...Sxc3!
    • 1.Qxf5?
      • threat
        • 2.Rd3#
        • 2.Qd3#
        • 2.Qe4#
        • 2.Qe5#
      • 1...Sc3
        • 2.Rd3#
        • 2.Qd3#
        • 2.Qe5#
        • 2.dxc3#
      • 1...e5
        • 2.Rd3#
        • 2.Qd3#
        • 2.Qe4#
      • 1...exf5!
  • Keys
    • 1.Se5!
      • threat
        • 2.Sc6#
      • 1...Kxe5
        • 2.d4#
      • 1...Sxd6
        • 2.Rd3#
      • 1...Se3
        • 2.Sb5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 7
  • Sets
    • B(c);N_GUARD::QAR2(F),XP(e)
    • S(a);OGATE,P_SPINS(a),XP(B)::R(A),XS(a)
    • S(a);OGATE::R(A)+P(B)DCHECK,XS(a)
    • S(f);OGATE::QAB1(F)
  • Tries
    • Try
      • B(K);
      • Threat
        • R1(C)
      • Vars
        • S(f);OGATE::QAB1(F)
      • Refutation
        • S(f);XS(H)
    • Try
      • R(A);
      • Threat
        • S(H)
      • Vars
        • S(f);OGATE,XS(H)::QAB1(F)
        • S(a);OGATE::P(B),XS(a)
      • Refutation
        • S(f);
    • Try
      • R(C);
      • Threat
        • S(H)
      • Vars
        • S(f);OGATE,XS(H)::QAB1(F)
      • Refutation
        • S(a);XR(C)
    • Try
      • Q(F);XS(f)
      • Threat
        • DUALS(4)
      • Refutation
        • P(g);XQ(F)
  • Actual
    • S(I);
    • Threat
      • S(I)
    • Vars
      • K(d);OGATE,P_SPINS(f),S_FLIGHT,XS(I)::P(B)
      • S(f);XS(H)::R1(C)
      • S(f);::S(H)
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).