MESON Chess Problem Database

Problem Display
PID: 107977 (2K5/2R4p/nN2p3/2p4p/2p1k1B1/3N2Q1/8/2rn2Bb w - - 0 1)

Dyachuk, Vasyl Vasilovich

Szachista, 1999-2002

2K5/2R4p/nN2p3/2p4p/2p1k1B1/3N2Q1/8/2rn2Bb

#2

7 + 10

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bf3
      • 2.Qxf3#
    • 1...Sb2
      • 2.Qe3#
    • 1...Sc3
      • 2.Qe3#
    • 1...Se3
      • 2.Qxe3#
    • 1...Sb4
      • 2.Sxc5#
    • 1...Sxc7
      • 2.Sxc5#
    • 1...Sb8
      • 2.Sxc5#
  • Tries
    • 1.Be2?
      • threat
        • 2.Qf4#
        • 2.Qe5#
      • 1...cxd3
        • 2.Bxd3#
      • 1...e5
        • 2.Qxe5#
      • 1...Kf5!
    • 1.Bf5+?
      • 1...exf5
        • 2.Re7#
      • 1...Kxf5!
    • 1.Rxc5?
      • threat
        • 2.Re5#
      • 1...Sxc5
        • 2.Sxc5#
      • 1...cxd3
        • 2.Qe5#
      • 1...Bf3
        • 2.Qxf3#
      • 1...Se3
        • 2.Qxe3#
      • 1...e5
        • 2.Rxe5#
      • 1...Sf2!
    • 1.Rd7?
      • threat
        • 2.Qf4#
        • 2.Qe5#
      • 1...hxg4
        • 2.Qf4#
        • 2.Qxg4#
      • 1...e5
        • 2.Qxe5#
      • 1...cxd3!
    • 1.Qe1+?
      • 1...Se3
        • 2.Qxe3#
      • 1...Kxd3!
  • Keys
    • 1.Rf7!
      • threat
        • 2.Rf4#
      • 1...cxd3
        • 2.Qf4#
      • 1...Bf3
        • 2.Qxf3#
      • 1...Se3
        • 2.Qxe3#
      • 1...e5
        • 2.Bf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 5
  • Sets
    • B(c);N_GUARD::QAB1(C),XB(c)
    • S(b);N_GUARD::QAR1(C)
    • S(b);N_GUARD::QAR1(C),XS(b)
    • S(h);N_GUARD::S(B),XP(f)
    • S(h);N_GUARD,XR(F)::S(B),XP(f)
  • Tries
    • Try
      • B(D);
      • Threat
        • DUALS(2)
      • Vars
        • P(d);OGATE,XS(B)::B(D),XP(d)
        • P(i);::QAR1(C),XP(i)
      • Refutation
        • K(e);S_FLIGHT
    • Try
      • B(D);CHECK
      • Vars
        • P(i);SBLOCK,XB(D)::R(F)
      • Refutation
        • K(e);S_FLIGHT,XB(D)
    • Try
      • R(F);XP(f)
      • Threat
        • R1(F)
      • Vars
        • S(h);XR(F)::S(B),XS(h)
        • P(d);P_PINR(F),SBLOCK,XS(B)::QAR1(C)
        • B(c);N_GUARD::QAB1(C),XB(c)
        • S(b);N_GUARD::QAR1(C),XS(b)
        • P(i);::R1(F),XP(i)
      • Refutation
        • S(b);
    • Try
      • R(F);
      • Threat
        • DUALS(2)
      • Vars
        • P(i);::QAR1(C),XP(i)
      • Refutation
        • P(d);XS(B)
    • Try
      • Q(C);CHECK
      • Vars
        • S(b);N_GUARD,P_SPINS(b)::QAR1(C),XS(b)
      • Refutation
        • K(e);S_FLIGHT,XS(B)
  • Actual
    • R(F);
    • Threat
      • R1(F)
    • Vars
      • P(d);SBLOCK,XS(B)::QAR1(C)
      • B(c);N_GUARD::QAB1(C),XB(c)
      • S(b);N_GUARD::QAR1(C),XS(b)
      • P(i);N_GUARD::B(D)
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).