MESON Chess Problem Database
Problem Display
PID: 54740 (n1R5/2q5/N7/pp3pp1/1pPk4/3N1B2/1K1Q4/2R5 w - - 0 1)
Pankratiev, Aleksandr Nikolaevich
Die Schwalbe, 2003
#2
8 + 8
SOLUTION
- SOUND
- Sets
- 1...Qe5
- 2.Se1#
- 2.Sf2#
- 2.Sdxb4#
- 2.Sf4#
- 2.Sdc5#
- 1...Qd8
- 2.Rxd8#
- 1...Qe5
- Tries
- 1.Saxb4?
- threat
- 2.Qf2#
- 1...Qh2
- 2.Sc2#
- 2.Sc6#
- 1...Qg3
- 2.Sc2#
- 2.Sc6#
- 1...Qf4
- 2.Sc2#
- 2.Sc6#
- 1...Qe5
- 2.Se1#
- 2.Sf2#
- 2.Sf4#
- 2.Sc5#
- 2.Sc2#
- 2.Sc6#
- 1...Qe7
- 2.Sc2#
- 2.Sc6#
- 1...axb4!
- threat
- 1.Sac5?
- threat
- 2.Sb3#
- 2.Se6#
- 2.Qf2#
- 1...Qxc8
- 2.Sb3#
- 2.Qf2#
- 1...bxc4
- 2.Se6#
- 2.Qf2#
- 1...Qh2
- 2.Sb3#
- 2.Se6#
- 1...Qg3
- 2.Sb3#
- 2.Se6#
- 1...Qf4
- 2.Sb3#
- 2.Se6#
- 1...Qe5
- 2.Se1#
- 2.Sf2#
- 2.Sxb4#
- 2.Sf4#
- 2.Sb3#
- 1...Qb6
- 2.Sb3#
- 2.Qf2#
- 1...Qd6
- 2.Sb3#
- 2.Qf2#
- 1...Qc6
- 2.Sb3#
- 2.Qf2#
- 1...Qd7
- 2.Sb3#
- 2.Qf2#
- 1...Qe7
- 2.Sb3#
- 1...Qf7
- 2.Sb3#
- 2.Qf2#
- 1...b3
- 2.Sxb3#
- 2.Se6#
- 2.Qf2#
- 1...a4
- 2.Se6#
- 2.Qf2#
- 1...Qxc5!
- threat
- 1.Sxc7?
- threat
- 2.Sxb5#
- 2.Se6#
- 2.Rd8#
- 1...bxc4
- 2.Sb5#
- 2.Se6#
- 2.Rd8#
- 1...Sb6
- 2.Sxb5#
- 2.Se6#
- 1...Sxc7!
- threat
- 1.Rd8+?
- 1...Qd6
- 2.Rxd6#
- 1...Qd7
- 2.Rxd7#
- 1...Qxd8!
- 1...Qd6
- 1.Re8?
- threat
- 2.Se1#
- 2.Sf2#
- 2.Sdxb4#
- 2.Sf4#
- 2.Sdc5#
- 2.Se5#
- 2.Qe3#
- 1...Qxc4
- 2.Qe3#
- 1...Qh2
- 2.Sf2#
- 1...Qf4
- 2.Sxf4#
- 1...Qe5
- 2.Se1#
- 2.Sf2#
- 2.Sdxb4#
- 2.Sf4#
- 2.Sdc5#
- 2.Sxe5#
- 1...Qc5
- 2.Se1#
- 2.Sf2#
- 2.Sdxb4#
- 2.Sf4#
- 2.Sdxc5#
- 2.Se5#
- 2.Qe3#
- 1...b3
- 2.Se1#
- 2.Sf2#
- 2.Sdb4#
- 2.Sf4#
- 2.Sdc5#
- 2.Se5#
- 2.Qc3#
- 2.Qe3#
- 1...f4
- 2.Se1#
- 2.Sf2#
- 2.Sdxb4#
- 2.Sxf4#
- 2.Sdc5#
- 2.Se5#
- 2.Re4#
- 1...Qe7!
- threat
- 1.Saxb4?
- Keys
- 1.Re1!
- threat
- 2.Se5#
- 1...Kxc4
- 2.Se5#
- 1...Qxc4
- 2.Qe3#
- 1...Qh2
- 2.Sf2#
- 1...Qf4
- 2.Sxf4#
- 1...Qe5
- 2.Sc1#
- 2.Sf2#
- 2.Sdxb4#
- 2.Sf4#
- 2.Sxe5#
- threat
- 1.Re1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 1
- Sets
- Q(g);N_GUARD::R(H),XQ(g)
- Tries
- Try
- S(G);XP(a)
- Threat
- QAB(C)
- Refutation
- P(c);XS(G)
- Try
- S(G);
- Threat
- DUALS(3)
- Vars
- Q(g);::S(G)
- Refutation
- Q(g);XS(G)
- Try
- S(G);XQ(g)
- Threat
- DUALS(3)
- Refutation
- S(h);XS(G)
- Try
- R(H);CHECK
- Vars
- Q(g);N_GUARD,P_SPINQ(g)::R(H),XQ(g)
- Refutation
- Q(g);XR(H)
- Try
- R(H);
- Threat
- DUALS(7)
- Vars
- Q(g);XP(F)::QAB1(C)
- Q(g);P_PINQ(C)::QAR(C)+S(D)
- Q(g);::QAR(C)+S(D),XQ(g)
- Refutation
- Q(g);
- Try
- Actual
- R(A);
- Threat
- QAR(C)+S(D)
- Vars
- K(b);P-FLIGHT,P_SPINQ(g),XP(F)::S(D)
- Q(g);XP(F)::QAB1(C)
- Q(g);P_PINQ(C)::QAR(C)+S(D)
- Q(g);::QAR(C)+S(D),XQ(g)
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).