MESON Chess Problem Database
Problem Display
PID: 117150 (1KR5/1p2Q3/3p3B/4N3/2Pk4/1pN2q1R/2rp4/5B2 w - - 0 1)
Kubbel, Leonid Ivanovich (AKA Kubbel, Karl Artur Leonid)
64 Shakhmatnoe obozrenie, 1936
#2
9 + 7
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qd1
- 2.Rd3#
- 2.Qxd6#
- 1...Qh1
- 2.Rd3#
- 1...Qe2
- 2.Qxd6#
- 1...Qg2
- 2.Rd3#
- 1...Qe4
- 2.Sb5#
- 1...Qg4
- 2.Rd3#
- 2.Qxd6#
- 1...Qd5
- 2.Rd3#
- 1...Qh5
- 2.Rd3#
- 2.Qxd6#
- 1...Qxf1
- 2.Qxd6#
- 1...Qf2
- 2.Rd3#
- 2.Qxd6#
- 1...Qxc3
- 2.Rh4#
- 1...Qd3
- 2.Rxd3#
- 1...Qf4
- 2.Rd3#
- 2.Qxd6#
- 1...Qf5
- 2.Qxd6#
- 1...Qf6
- 2.Rd3#
- 1...Qf7
- 2.Rd3#
- 1...Qf8
- 2.Rd3#
- 1...Qd1
- Tries
- 1.Sc6+?
- 1...Kxc3
- 2.Bg7#
- 2.Qf6#
- 2.Qg7#
- 1...Kc5
- 2.Sa4#
- 1...Qxc6
- 2.Qe3#
- 1...bxc6!
- 1...Kxc3
- 1.Rxf3?
- threat
- 2.Rd3#
- 2.Qxd6#
- 1...dxe5
- 2.Rd3#
- 2.Rd8#
- 2.Qc5#
- 2.Qd6#
- 2.Qd8#
- 2.Qd7#
- 1...d1Q
- 2.Qxd6#
- 1...d1R
- 2.Qxd6#
- 1...d5
- 2.Rd3#
- 1...Rxc3!
- threat
- 1.Qxd6+?
- 1...Qd5
- 2.Rd3#
- 2.Qxd5#
- 1...Kxc3!
- 1...Qd5
- 1.Sc6+?
- Keys
- 1.Bg7!
- threat
- 2.Sxf3#
- 1...Kxc3
- 2.Sc6#
- 1...Ke3
- 2.Sd3#
- 1...Qxf1
- 2.Qxd6#
- 1...Qxc3
- 2.Sd3#
- 2.Sf3#
- 2.Sg4#
- 2.Sg6#
- 2.Sd7#
- 2.Sf7#
- 2.Qh4#
- 1...Qxh3
- 2.Sd3#
- 2.Sf3#
- 2.Sg4#
- 2.Sg6#
- 2.Sd7#
- 2.Sf7#
- 1...dxe5
- 2.Qxe5#
- 1...Qd1
- 2.Sd3#
- 2.Sf3#
- 2.Sg4#
- 2.Sg6#
- 2.Sd7#
- 2.Sf7#
- 2.Rd3#
- 2.Qxd6#
- 1...Qh1
- 2.Sd3#
- 2.Sf3#
- 2.Sg4#
- 2.Sg6#
- 2.Sd7#
- 2.Sf7#
- 2.Rd3#
- 1...Qe2
- 2.Qxd6#
- 1...Qg2
- 2.Sf3#
- 2.Sg4#
- 2.Sg6#
- 2.Rd3#
- 1...Qe4
- 2.Sb5#
- 1...Qg4
- 2.Sf3#
- 2.Sxg4#
- 2.Sg6#
- 2.Rd3#
- 2.Qxd6#
- 1...Qd5
- 2.Sf3#
- 2.Rd3#
- 1...Qh5
- 2.Sf3#
- 2.Rd3#
- 2.Qxd6#
- 1...Qc6
- 2.Sd7#
- 1...Qf2
- 2.Sf3#
- 2.Rd3#
- 2.Qxd6#
- 1...Qd3
- 2.Sxd3#
- 2.Sf3#
- 2.Sg4#
- 2.Sg6#
- 2.Sd7#
- 2.Sf7#
- 2.Rxd3#
- 1...Qe3
- 2.Sf3#
- 1...Qg3
- 2.Sf3#
- 1...Qf4
- 2.Sf3#
- 2.Rd3#
- 2.Qxd6#
- 1...Qf5
- 2.Sf3#
- 2.Qxd6#
- 1...Qf6
- 2.Rd3#
- 1...Qf7
- 2.Sf3#
- 2.Sxf7#
- 2.Rd3#
- 1...Qf8
- 2.Sf3#
- 2.Rd3#
- threat
- 1.Bg7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 8
- Sets
- Q(d);OGATE::R1(C)
- Q(d);N_GUARD::QAR2(G),XP(f)
- Q(d);SBLOCK::S(B)
- Q(d);N_GUARD,XB(A)::QAR2(G),XP(f)
- Q(d);N_GUARD,SBLOCK,XS(B)::R(C)
- Q(d);OGATE::R1(C),XQ(d)
- Q(d);OGATE,P_PINR(I)::R1(C)
- Tries
- Try
- S(E);CHECK
- Vars
- K(e);P_SPINP(f),S_FLIGHT::S(B)
- Q(d);XS(E)::QAB1(G)
- Refutation
- P(g);XS(E)
- Try
- R(C);XQ(d)
- Threat
- DUALS(2)
- Vars
- P(b);::QAR2(G),XP(f)
- P(f);::R1(C)
- Refutation
- R(a);XS(B)
- Try
- Q(G);CHECK,XP(f)
- Refutation
- K(e);P_SPINQ(d),S_FLIGHT,XS(B)
- Try
- Actual
- B(F);
- Threat
- B(F)+S(E),DCHECK,XQ(d)
- Vars
- K(e);P_SPINQ(d),S_FLIGHT,XS(B)::B(F)+S(E)
- K(e);P_SPINQ(d),S_FLIGHT::QAR(G)+S(E)
- Q(d);N_GUARD,XB(A)::QAR2(G),XP(f)
- P(f);OGATE,P_SPINP(f),XS(E)::QAB1(G),XP(f)
- Q(d);N_GUARD::QAR2(G),XP(f)
- Q(d);SBLOCK::S(B)
- Q(d);N_GUARD::B(F)+S(E)
- Q(d);::B(F)+S(E),DCHECK
- Q(d);OGATE::R1(C)
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).