MESON Chess Problem Database
Problem Display
PID: 119949 (n7/3BK3/2pQ1p2/5Pb1/3BkNN1/3p4/3p2P1/4q3 w - - 0 1)
Kubbel, Leonid Ivanovich (AKA Kubbel, Karl Artur Leonid)
Bohemia, 1908
#2
8 + 8
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qf2
- 2.Sxf2#
- 1...Qa1
- 2.Sf2#
- 1...Qb1
- 2.Sf2#
- 1...Qc1
- 2.Sf2#
- 1...Qd1
- 2.Sf2#
- 1...Qh1
- 2.Sf2#
- 1...Bxf4
- 2.Sxf6#
- 1...Bh6
- 2.Sxf6#
- 1...Qf2
- Tries
- 1.Sxd3?
- threat
- 2.Sc5#
- 1...Qc1
- 2.Sdf2#
- 2.Sgf2#
- 1...c5
- 2.Sxc5#
- 1...Kxd3+!
- threat
- 1.Be3?
- threat
- 2.Qb4#
- 2.Qxd3#
- 2.Qd4#
- 2.Qxc6#
- 2.Qe6#
- 1...Bxf4
- 2.Qd4#
- 2.Qxc6#
- 1...d1Q
- 2.Qd4#
- 2.Qxc6#
- 2.Qe6#
- 1...d1S
- 2.Qxd3#
- 2.Qd4#
- 2.Qxc6#
- 2.Qe6#
- 1...d1B
- 2.Qxd3#
- 2.Qd4#
- 2.Qxc6#
- 2.Qe6#
- 1...d1R
- 2.Qd4#
- 2.Qxc6#
- 2.Qe6#
- 1...Qa1
- 2.Qxd3#
- 2.Qxc6#
- 1...Qb1
- 2.Qd4#
- 2.Qxc6#
- 2.Qe6#
- 1...Qc1
- 2.Qxd3#
- 2.Qd4#
- 2.Qe6#
- 1...Qf1
- 2.Qb4#
- 2.Qd4#
- 2.Qxc6#
- 2.Qe6#
- 1...Qe2
- 2.Qb4#
- 2.Qd4#
- 2.Qxc6#
- 2.Qe6#
- 1...Sb6
- 2.Qxd3#
- 2.Qd4#
- 2.Qe6#
- 1...Sc7
- 2.Qb4#
- 2.Qxd3#
- 2.Qd4#
- 1...c5
- 2.Qxd3#
- 2.Qd5#
- 2.Qc6#
- 2.Qe6#
- 1...Qxe3!
- threat
- 1.Be5?
- threat
- 2.Qb4#
- 2.Qxd3#
- 2.Qd4#
- 2.Qxc6#
- 1...Bxf4
- 2.Qd4#
- 2.Qxc6#
- 1...d1Q
- 2.Qd4#
- 2.Qxc6#
- 1...d1S
- 2.Qxd3#
- 2.Qd4#
- 2.Qxc6#
- 1...d1B
- 2.Qxd3#
- 2.Qd4#
- 2.Qxc6#
- 1...d1R
- 2.Qd4#
- 2.Qxc6#
- 1...Qf2
- 2.Qxd3#
- 2.Qxc6#
- 1...Qg3
- 2.Qb4#
- 2.Qd4#
- 2.Qxc6#
- 1...Qa1
- 2.Qxd3#
- 2.Qxc6#
- 1...Qb1
- 2.Qd4#
- 2.Qxc6#
- 1...Qc1
- 2.Qxd3#
- 2.Qd4#
- 1...Qf1
- 2.Qb4#
- 2.Qd4#
- 2.Qxc6#
- 1...Qg1
- 2.Qxd3#
- 2.Qxc6#
- 1...Qe2
- 2.Qb4#
- 2.Qd4#
- 2.Qxc6#
- 1...Qe3
- 2.Qxc6#
- 1...Sb6
- 2.Qxd3#
- 2.Qd4#
- 1...Sc7
- 2.Qb4#
- 2.Qxd3#
- 2.Qd4#
- 1...c5
- 2.Qxd3#
- 2.Qd5#
- 2.Qc6#
- 1...fxe5+!
- threat
- 1.Sxd3?
- Keys
- 1.Qb4!
- threat
- 2.Ba1#
- 2.Bg1#
- 2.Bb2#
- 2.Bf2#
- 2.Bc3#
- 2.Be3#
- 2.Bc5#
- 2.Be5#
- 2.Bb6#
- 2.Bxf6#
- 2.Ba7#
- 1...Kxf4+
- 2.Be5#
- 1...Bxf4
- 2.Sxf6#
- 1...d1Q
- 2.Bc3#
- 1...d1S
- 2.Bc3#
- 1...d1B
- 2.Bc3#
- 1...d1R
- 2.Bc3#
- 1...Qf2
- 2.Bxf2#
- 2.Be3#
- 1...Qa1
- 2.Bxa1#
- 2.Bb2#
- 2.Bc3#
- 1...Qb1
- 2.Bb2#
- 1...Qc1
- 2.Bc3#
- 1...Qg1
- 2.Bxg1#
- 2.Bf2#
- 2.Be3#
- 1...Qe3
- 2.Bxe3#
- 1...Sb6
- 2.Bxb6#
- 1...c5
- 2.Bxc5#
- threat
- 1.Qb4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 8
- REMOVED MATES = 5
- Sets
- Q(a);N_GUARD::S(D),XQ(a)
- Q(a);N_GUARD::S(D)
- B(e);N_GUARD,XS(C)::S(D),XP(g)
- B(e);N_GUARD::S(D),XP(g)
- Tries
- Try
- S(C);XP(c)
- Threat
- S(C)
- Vars
- P(f);::S(C),XP(f)
- Refutation
- K(d);CHECK,S_FLIGHT,XS(C)
- Try
- B(B);
- Threat
- DUALS(5)
- Refutation
- Q(a);XB(B)
- Try
- B(B);
- Threat
- DUALS(4)
- Vars
- Q(a);::QAB(F),XP(f)
- Refutation
- P(g);CHECK,XB(B)
- Try
- Actual
- Q(F);
- Threat
- DUALS(11)
- Vars
- K(d);CHECK,P-FLIGHT,XS(C)::QAR(F)+B(B),DCHECK
- B(e);N_GUARD,SBLOCK,XS(C)::S(D),XP(g)
- P(b);::QAR(F)+B(B)
- Q(a);::QAR(F)+B(B)
- Q(a);::QAR(F)+B(B),XQ(a)
- S(h);::QAR(F)+B(B),XS(h)
- P(f);::QAR(F)+B(B),XP(f)
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).