MESON Chess Problem Database

Problem Display
PID: 158405 (2nQ4/4P2K/N1PB4/4R3/bp1kPp2/2Rrr1p1/Bnp5/5N2 w - - 0 1)

Abrosimov, Viktor Yakovlevich

Birnov MT, 2010

2nQ4/4P2K/N1PB4/4R3/bp1kPp2/2Rrr1p1/Bnp5/5N2

#2

11 + 10

15148 Sadier Collection 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Kxc3
      • 2.Bxb4#
    • 1...Sd1
      • 2.Rc4#
    • 1...Sc4
      • 2.Rxc4#
  • Tries
    • 1.Bxb4+?
      • 1...Sd6
        • 2.Qxd6#
      • 1...Kxe5!
    • 1.Bc5+?
      • 1...Kxc3
        • 2.Bxb4#
      • 1...Kxe5!
    • 1.Rd5+?
      • 1...Kxc3
        • 2.Bxb4#
      • 1...Kxe4!
    • 1.Qa5?
      • threat
        • 2.Qc5#
      • 1...Kxc3
        • 2.Qxb4#
      • 1...Rxc3
        • 2.Qd5#
      • 1...Sc4
        • 2.Rxc4#
      • 1...Bb5!
    • 1.Qb6+?
      • 1...Kxc3
        • 2.Bxb4#
        • 2.Qxb4#
      • 1...Sxb6!
    • 1.Qh8?
      • threat
        • 2.Re6#
      • 1...Kxc3
        • 2.Rc5#
      • 1...Rxe4
        • 2.Rd5#
      • 1...Sc4
        • 2.Rxc4#
      • 1...Rxc3!
  • Keys
    • 1.Re6!
      • threat
        • 2.Qh8#
      • 1...Kxc3
        • 2.Bxb4#
      • 1...Rxc3
        • 2.Bc5#
      • 1...Rxe4
        • 2.Be5#
      • 1...Sc4
        • 2.Rxc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • K(h);S_FLIGHT,XR(C)::B(H),XP(g)
    • S(a);N_GUARD::R1(C)
    • S(a);N_GUARD::R1(C),XS(a)
  • Tries
    • Try
      • B(H);CHECK,XP(g)
      • Vars
        • S(j);N_GUARD,P_SPINS(j)::QAR2(K),XS(j)
      • Refutation
        • K(h);S_FLIGHT,XR(E)
    • Try
      • B(H);CHECK
      • Vars
        • K(h);S_FLIGHT,XR(C)::B(H),XP(g)
      • Refutation
        • K(h);S_FLIGHT,XR(E)
    • Try
      • R(E);CHECK
      • Vars
        • K(h);S_FLIGHT,XR(C)::B(H),XP(g)
      • Refutation
        • K(h);P-FLIGHT,XP(D)
    • Try
      • Q(K);
      • Threat
        • QAB1(K)
      • Vars
        • K(h);P_SPINP(g),S_FLIGHT,XR(C)::QAB1(K),XP(g)
        • R(c);SBLOCK,XR(C)::QAR1(K)
        • S(a);N_GUARD::R1(C),XS(a)
      • Refutation
        • B(f);
    • Try
      • Q(K);CHECK
      • Refutation
        • S(j);XQ(K)
    • Try
      • Q(K);
      • Threat
        • QAB(K)+R(E)
      • Vars
        • K(h);S_FLIGHT,XR(C)::QAB(K)+R(E),DCHECK
        • R(d);SBLOCK,XP(D)::QAB(K)+R(E),DCHECK
        • S(a);N_GUARD::R1(C),XS(a)
      • Refutation
        • R(c);XR(C)
  • Actual
    • R(E);
    • Threat
      • QAB(K)
    • Vars
      • K(h);S_FLIGHT,XR(C)::B(H),XP(g)
      • R(c);SBLOCK,XR(C)::QAR(K)+B(H),DCHECK
      • R(d);SBLOCK,XP(D)::QAR(K)+B(H),DCHECK
      • S(a);N_GUARD::R1(C),XS(a)
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).