MESON Chess Problem Database

Problem Display
PID: 274531 (B4N2/b2R1R2/K5b1/p3k3/3r4/r1q5/1Q6/4N1B1 w - - 0 1)

Amirov, Talip Khasanovich

Schakend Nederland, 1972

B4N2/b2R1R2/K5b1/p3k3/3r4/r1q5/1Q6/4N1B1

#2

8 + 7

15601 Albrecht-Leiss-Degener Collection 2024

SOLUTION

  • SOUND
  • Sets
    • 1...Rd1
      • 2.Sf3#
      • 2.Bh2#
    • 1...Rd2
      • 2.Sf3#
    • 1...Ra4
      • 2.Sf3#
    • 1...Rb4
      • 2.Sf3#
    • 1...Rc4
      • 2.Sf3#
    • 1...Re4
      • 2.Sd3#
      • 2.Sf3#
      • 2.Rd5#
    • 1...Rg4
      • 2.Sf3#
    • 1...Rh4
      • 2.Sf3#
  • Tries
    • 1.Bh2+?
      • 1...Rf4
        • 2.Sf3#
        • 2.Bxf4#
      • 1...Qg3!
    • 1.Qe2+?
      • 1...Qe3
        • 2.Sf3#
      • 1...Re4
        • 2.Rd5#
      • 1...Be4!
    • 1.Qb5+?
      • 1...Qc5
        • 2.Bxd4#
      • 1...Rd5
        • 2.Qxd5#
      • 1...Bc5!
    • 1.Qb8+?
      • 1...Qc7
        • 2.Qe8#
      • 1...Rd6+
        • 2.Qxd6#
      • 1...Bxb8!
  • Keys
    • 1.Qh2+!
      • 1...Qg3
        • 2.Qh8#
      • 1...Rf4
        • 2.Qxf4#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 6
  • Sets
    • R(c);P_SPINQ(b)::S(A)
  • Tries
    • Try
      • B(B);CHECK
      • Refutation
        • Q(b);P_SPINQ(b),P_SPINR(c)
    • Try
      • Q(C);CHECK
      • Vars
        • Q(b);P_SPINQ(b)::S(A)
        • R(c);P_SPINR(c)::R1(E)
      • Refutation
        • B(f);P_SPINB(f)
    • Try
      • Q(C);CHECK
      • Vars
        • Q(b);P_SPINQ(b)::B(B),XR(c)
        • R(c);N_GUARD,P_SPINR(c)::QAR1(C),XR(c)
      • Refutation
        • B(g);P_SPINB(g)
    • Try
      • Q(C);CHECK
      • Vars
        • Q(b);P_SPINQ(b)::QAR(C)
        • R(c);CHECK,N_GUARD,P_SPINR(c)::QAB1(C),XR(c)
      • Refutation
        • B(g);XQ(C)
  • Actual
    • Q(C);CHECK
    • Vars
      • Q(b);P_SPINQ(b)::QAB(C)
      • R(c);N_GUARD,P_SPINR(c)::QAB1(C),XR(c)
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).