MESON Chess Problem Database
Problem Display
PID: 259719 (R1R2B2/1p6/PkP5/pN3Qn1/8/p1p5/8/Kn4br w - - 0 1)
Tkachenko, Sergiy Ivanovich
Tolosa-100 MT (Problemas), 2016
#2
8 + 9
SOLUTION
- SOUND
- Sets
- 1...Bh2
- 2.Qc5#
- 1...Bc5
- 2.Qxc5#
- 1...bxa6
- 2.Rab8#
- 1...bxc6
- 2.Rcb8#
- 1...Bh2
- Tries
- 1.Sxa3?
- threat
- 2.Sc4#
- 2.Qxb1#
- 2.Qb5#
- 1...bxa6
- 2.Sc4#
- 2.Qxb1#
- 1...bxc6
- 2.Sc4#
- 2.Qxb1#
- 1...Rh2
- 2.Sc4#
- 2.Qb5#
- 1...Rh4
- 2.Qb5#
- 1...Bf2
- 2.Sc4#
- 2.Qxf2#
- 2.Qb5#
- 1...Bh2
- 2.Sc4#
- 2.Bc5#
- 2.Qf2#
- 2.Qb5#
- 2.Qc5#
- 1...Be3
- 2.Sc4#
- 2.Qb5#
- 1...Bd4
- 2.Sc4#
- 2.Qb5#
- 1...Bc5
- 2.Bxc5#
- 2.Qxc5#
- 1...Sd2
- 2.Qb5#
- 1...Se4
- 2.Sc4#
- 2.Qb5#
- 1...c2
- 2.Sc4#
- 2.Qb5#
- 1...a4
- 2.Sc4#
- 2.Qb5#
- 1...Sxa3!
- threat
- 1.Sxc3?
- threat
- 2.Sa4#
- 2.Qxb1#
- 2.Qb5#
- 1...bxa6
- 2.Sa4#
- 2.Qxb1#
- 1...bxc6
- 2.Sa4#
- 2.Qxb1#
- 1...Rh2
- 2.Sa4#
- 2.Qb5#
- 1...Rh4
- 2.Qb5#
- 1...Bf2
- 2.Sa4#
- 2.Qxf2#
- 2.Qb5#
- 1...Bh2
- 2.Sa4#
- 2.Bc5#
- 2.Qf2#
- 2.Qb5#
- 2.Qc5#
- 1...Be3
- 2.Sa4#
- 2.Qb5#
- 1...Bd4
- 2.Qb5#
- 1...Bc5
- 2.Bxc5#
- 2.Qxc5#
- 1...Sd2
- 2.Sa4#
- 2.Qb5#
- 1...Se4
- 2.Sa4#
- 2.Qb5#
- 1...a2
- 2.Sa4#
- 2.Qb5#
- 1...a4
- 2.Sxa4#
- 2.Qb5#
- 1...Sxc3!
- threat
- 1.Sd4?
- threat
- 2.Bc5#
- 2.Qxb1#
- 2.Qb5#
- 2.Qc5#
- 1...bxa6
- 2.Bc5#
- 2.Qxb1#
- 2.Qc5#
- 1...bxc6
- 2.Bc5#
- 2.Rxc6#
- 2.Qxb1#
- 2.Qc5#
- 1...Rh2
- 2.Bc5#
- 2.Qb5#
- 2.Qc5#
- 1...Bf2
- 2.Bc5#
- 2.Qb5#
- 2.Qc5#
- 1...Bh2
- 2.Bc5#
- 2.Qb5#
- 2.Qc5#
- 1...Be3
- 2.Bc5#
- 2.Qb5#
- 2.Qc5#
- 1...Sd2
- 2.Bc5#
- 2.Qb5#
- 2.Qc5#
- 1...Se4
- 2.Qb5#
- 1...Se6
- 2.Qxb1#
- 2.Qb5#
- 1...a2
- 2.Bc5#
- 2.Qb5#
- 2.Qc5#
- 1...c2
- 2.Bc5#
- 2.Qb5#
- 2.Qc5#
- 1...a4
- 2.Qb5#
- 2.Qc5#
- 1...Bxd4!
- threat
- 1.Sd6?
- threat
- 2.Sc4#
- 2.Qb5#
- 1...bxa6
- 2.Sc4#
- 1...bxc6
- 2.Sc4#
- 1...Rh4
- 2.Qb5#
- 1...Sd2
- 2.Qb5#
- 1...Bc5!
- threat
- 1.Sa7?
- threat
- 2.Qb5#
- 1...Kxa6
- 2.Qb5#
- 1...bxa6
- 2.Qxb1#
- 1...bxc6
- 2.Rxc6#
- 1...Bc5!
- threat
- 1.axb7?
- threat
- 2.b8Q#
- 2.b8R#
- 1...Bc5
- 2.Qxc5#
- 2.b8Q#
- 2.b8R#
- 1...Rh2
- 2.b8Q#
- 2.b8R#
- 1...Rh3
- 2.b8Q#
- 2.b8R#
- 1...Rh4
- 2.b8Q#
- 2.b8R#
- 1...Rh5
- 2.b8Q#
- 2.b8R#
- 1...Rh6
- 2.b8Q#
- 2.b8R#
- 1...Rh8
- 2.b8Q#
- 2.b8R#
- 1...Bf2
- 2.b8Q#
- 2.b8R#
- 1...Bh2
- 2.Qc5#
- 1...Be3
- 2.b8Q#
- 2.b8R#
- 1...Bd4
- 2.b8Q#
- 2.b8R#
- 1...Sd2
- 2.b8Q#
- 2.b8R#
- 1...Sf3
- 2.b8Q#
- 2.b8R#
- 1...Sh3
- 2.b8Q#
- 2.b8R#
- 1...Se4
- 2.b8Q#
- 2.b8R#
- 1...Se6
- 2.b8Q#
- 2.b8R#
- 1...Sf7
- 2.b8Q#
- 2.b8R#
- 1...Sh7
- 2.b8Q#
- 2.b8R#
- 1...a2
- 2.b8Q#
- 2.b8R#
- 1...c2
- 2.b8Q#
- 2.b8R#
- 1...a4
- 2.b8Q#
- 2.b8R#
- 1...Rh7!
- threat
- 1.Sxa3?
- Keys
- 1.Sc7!
- threat
- 2.Qb5#
- 1...Kxc6
- 2.Qb5#
- 1...bxa6
- 2.Rxa6#
- 1...bxc6
- 2.Qxb1#
- 1...Bc5
- 2.Qxc5#
- threat
- 1.Sc7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 1
- REMOVED MATES = 1
- Sets
- B(b);N_GUARD::QAB1(C)
- B(b);N_GUARD::QAB1(C),XB(b)
- P(i);OGATEB,SBLOCK,XP(D)::R(F)
- P(i);OGATEB,SBLOCK,XP(E)::R(G)
- Tries
- Try
- S(B);XP(d)
- Threat
- DUALS(3)
- Vars
- R(c);::QAR1(C)
- S(a);::QAR1(C)
- Refutation
- S(a);XS(B)
- Try
- S(B);XP(e)
- Threat
- DUALS(3)
- Vars
- R(c);::QAR1(C)
- B(b);P_PINS(B)::QAR1(C)
- Refutation
- S(a);XS(B)
- Try
- S(B);
- Threat
- DUALS(4)
- Vars
- S(g);::QAR1(C)
- Refutation
- B(b);XS(B)
- Try
- S(B);
- Threat
- DUALS(2)
- Vars
- P(i);XP(D)::S(B)
- P(i);XP(E)::S(B)
- R(c);::QAR1(C)
- S(a);::QAR1(C)
- Refutation
- B(b);
- Try
- S(B);
- Threat
- QAR1(C)
- Vars
- K(h);P-FLIGHT,XP(D)::QAB1(C)
- P(i);SBLOCK,XP(D)::QAR(C),XS(a)
- P(i);OGATE,XP(E)::R1(G),XP(i)
- Refutation
- B(b);
- Try
- P(D);XP(i)
- Threat
- P=Q
- Vars
- R(c);::P=Q
- B(b);::P=Q
- B(b);N_GUARD::QAB1(C)
- S(a);::P=Q
- S(g);::P=Q
- P(d);::P=Q
- P(e);::P=Q
- P(f);::P=Q
- Refutation
- R(c);
- Try
- Actual
- S(B);
- Threat
- QAR1(C)
- Vars
- K(h);P-FLIGHT,XP(E)::QAB1(C)
- P(i);OGATE,XP(D)::R1(F),XP(i)
- P(i);SBLOCK,XP(E)::QAR(C),XS(a)
- B(b);N_GUARD::QAB1(C),XB(b)
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).