MESON Chess Problem Database
Problem Display
PID: 117094 (2R1Q3/q6b/3R1b2/r7/2p1p3/1N6/3P1pN1/1BBk1K2 w - - 0 1)
Kubbel, Leonid Ivanovich (AKA Kubbel, Karl Artur Leonid)
Vecherni Leningrad, 1981
#2
9 + 8
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qe3
- 2.Sxe3#
- 1...Qb8
- 2.Se3#
- 1...Qa6
- 2.Se3#
- 1...Qb7
- 2.Se3#
- 1...Qc7
- 2.Se3#
- 1...Qd7
- 2.Se3#
- 1...Qe7
- 2.Se3#
- 1...Qf7
- 2.Se3#
- 1...Qg7
- 2.Se3#
- 1...Qa8
- 2.Se3#
- 1...Ra1
- 2.Qh5#
- 1...Ra2
- 2.Qh5#
- 1...Ra3
- 2.Qh5#
- 1...Ra4
- 2.Qh5#
- 1...Rc5
- 2.Se3#
- 1...Rh5
- 2.Qxh5#
- 1...Ra6
- 2.Qh5#
- 1...Be5
- 2.Qh5#
- 1...Bg5
- 2.Qh5#
- 1...Qe3
- Tries
- 1.Rc5?
- threat
- 2.Se3#
- 2.Qh5#
- 1...Rxc5
- 2.Se3#
- 1...Qd7
- 2.Se3#
- 1...Qf7
- 2.Se3#
- 1...Qg7
- 2.Se3#
- 1...Bd4
- 2.Qh5#
- 1...Bg5
- 2.Qh5#
- 1...Bf5
- 2.Se3#
- 1...Bg6
- 2.Se3#
- 1...e3
- 2.Sxe3#
- 1...Qxc5!
- threat
- 1.Qxe4?
- threat
- 2.Bc2#
- 2.Qf3#
- 2.Qe2#
- 2.Qg4#
- 1...cxb3
- 2.Qf3#
- 2.Qe2#
- 2.Qg4#
- 1...Qd4
- 2.Bc2#
- 2.Qf3#
- 2.Qe2#
- 1...Qe3
- 2.Sxe3#
- 2.Bc2#
- 1...Qb7
- 2.Se3#
- 2.Bc2#
- 2.Qe2#
- 1...Qd7
- 2.Se3#
- 2.Bc2#
- 2.Qf3#
- 2.Qe2#
- 1...Qe7
- 2.Se3#
- 2.Bc2#
- 1...Qg7
- 2.Se3#
- 2.Bc2#
- 2.Qf3#
- 2.Qe2#
- 1...Qa8
- 2.Se3#
- 2.Bc2#
- 2.Qe2#
- 1...Ra2
- 2.Qf3#
- 2.Qe2#
- 2.Qg4#
- 1...Re5
- 2.Bc2#
- 1...Rf5
- 2.Bc2#
- 2.Qc2#
- 2.Qe2#
- 1...Rg5
- 2.Bc2#
- 2.Qf3#
- 2.Qe2#
- 1...Bf5
- 2.Bc2#
- 2.Qf3#
- 2.Qe2#
- 1...Bxe4!
- threat
- 1.Rc5?
- Keys
- 1.d4!
- threat
- 2.Se3#
- 1...cxd4 ep
- 2.Bc2#
- 1...exd4 ep
- 2.Qe2#
- 1...Bg5
- 2.Qh5#
- 1...e3
- 2.Sxe3#
- threat
- 1.d4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 18
- Sets
- Q(g);N_GUARD::S(E),XQ(g)
- Q(g);N_GUARD::S(E)
- R(e);N_GUARD::QAB(I)
- R(e);S_CUTQ(g)::S(E)
- R(e);N_GUARD::QAB(I),XR(e)
- B(f);S_CUTR(e)::QAB(I)
- Tries
- Try
- R(H);
- Threat
- DUALS(2)
- Vars
- R(e);XR(H)::S(E)
- Q(g);::S(E)
- B(f);::QAB(I)
- B(h);::S(E)
- P(d);::S(E),XP(d)
- Refutation
- Q(g);XR(H)
- Try
- Q(I);XP(d)
- Threat
- DUALS(4)
- Vars
- R(e);::B(A)
- Refutation
- B(h);XQ(I)
- Try
- Actual
- P(D);
- Threat
- S(E)
- Vars
- P(c);EP,P_SPINP(c),XP(D)::B(A)
- P(d);EP,OGATE,P_SPINP(d),XP(D)::QAB1(I)
- B(f);S_CUTR(e)::QAB(I)
- P(d);::S(E),XP(d)
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).