MESON Chess Problem Database
Problem Display
PID: 238060 (n2r1b2/K1p2n2/p7/1Q3Rq1/2NkNp2/1b2pP2/2r5/4BB2 w - - 0 1)
Bogdanov, Evgeny Mikhailovich
Buletin Problemistic, 1998
#2
8 + 12
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Ra2
- 2.Bc3#
- 1...Rb2
- 2.Bc3#
- 1...Rf2
- 2.Bc3#
- 1...Rg2
- 2.Bc3#
- 1...Rh2
- 2.Bc3#
- 1...Rc3
- 2.Bxc3#
- 1...Rd5
- 2.Qxd5#
- 1...Rd6
- 2.Qc5#
- 1...Rb8
- 2.Qd5#
- 1...Rc8
- 2.Qd5#
- 1...Re8
- 2.Qd5#
- 1...Bc5+
- 2.Qxc5#
- 1...Bd6
- 2.Qd5#
- 1...Bh6
- 2.Qc5#
- 1...Bg7
- 2.Qc5#
- 1...Se5
- 2.Qxe5#
- 1...Sd6
- 2.Qc5#
- 2.Qd5#
- 2.Qe5#
- 1...Sh6
- 2.Qe5#
- 1...Sh8
- 2.Qe5#
- 1...Ra2
- Tries
- 1.Sa5?
- threat
- 2.Sxb3#
- 2.Qd3#
- 1...Qxf5
- 2.Sxb3#
- 1...axb5
- 2.Sxb3#
- 1...e2
- 2.Bf2#
- 1...Rb2
- 2.Sc6#
- 2.Bc3#
- 2.Qd3#
- 1...Rd2
- 2.Sxb3#
- 2.Sc6#
- 1...Re2
- 2.Sxb3#
- 2.Sc6#
- 2.Bc3#
- 1...Rc3
- 2.Bxc3#
- 1...Rc4
- 2.Sxb3#
- 1...Ba2
- 2.Qd3#
- 1...Ba4
- 2.Qd3#
- 1...Bc4
- 2.Sc6#
- 1...Bd5
- 2.Qd3#
- 1...Be6
- 2.Qd3#
- 1...Se5
- 2.Sxb3#
- 2.Qxe5#
- 1...Bc5+!
- threat
- 1.Sed6?
- threat
- 2.Qc5#
- 2.Qd5#
- 1...Qxf5
- 2.Sxf5#
- 1...Rxc4
- 2.Qd5#
- 1...Rxd6
- 2.Qc5#
- 1...Bxc4
- 2.Qc5#
- 1...Bxd6
- 2.Qd5#
- 1...axb5
- 2.Sxb5#
- 1...cxd6
- 2.Qd5#
- 1...Re2
- 2.Qd5#
- 1...e2
- 2.Qd5#
- 1...Se5
- 2.Qxe5#
- 1...Sb6
- 2.Qc5#
- 1...c5
- 2.Qxc5#
- 1...c6
- 2.Qc5#
- 1...Rd2!
- threat
- 1.Sa5?
- Keys
- 1.Scd6!
- threat
- 2.Qd3#
- 1...Qxf5
- 2.Sxf5#
- 1...axb5
- 2.Sxb5#
- 1...e2
- 2.Bf2#
- 1...Rd2
- 2.Qc5#
- 1...Re2
- 2.Bc3#
- 1...Rc3
- 2.Bxc3#
- 1...Rc4
- 2.Qd5#
- 1...Bc4
- 2.Qc5#
- 1...Se5
- 2.Qxe5#
- threat
- 1.Scd6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 7
- REMOVED MATES = 16
- Sets
- R(a);N_GUARD::B(A)
- R(a);N_GUARD::B(A),XR(a)
- R(k);N_GUARD::QAR1(F),XR(k)
- R(k);S_CUTB(l)::QAB1(F)
- R(k);N_GUARD::QAR1(F)
- B(l);CHECK,N_GUARD::QAB1(F),XB(l)
- B(l);S_CUTR(k)::QAR1(F)
- B(l);N_GUARD::QAB1(F)
- S(i);N_GUARD::QAB1(F),XS(i)
- S(i);N_GUARD::QAB1(F)
- Tries
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- Q(f);XR(G)::S(D),XB(b)
- P(g);XQ(F)::S(D),XB(b)
- P(c);OGATEB::B(A)
- R(a);N_GUARD::B(A),XR(a)
- R(a);::S(D),XB(b)
- B(b);::QAR1(F)
- B(b);S_CUTR(a)::S(D)
- Refutation
- B(l);CHECK
- Try
- S(E);
- Threat
- DUALS(2)
- Vars
- Q(f);XR(G)::S(E),XQ(f)
- R(a);XS(D)::QAR1(F)
- R(k);XS(E)::QAB1(F)
- B(b);XS(D)::QAB1(F)
- B(l);XS(E)::QAR1(F)
- P(g);XQ(F)::S(E),XP(g)
- P(h);XS(E)::QAR1(F)
- R(a);::QAR1(F)
- P(c);::QAR1(F)
- S(i);N_GUARD::QAB1(F),XS(i)
- S(j);::QAB1(F)
- P(h);::QAB1(F),XP(h)
- P(h);::QAB1(F)
- Refutation
- R(a);
- Try
- Actual
- S(D);
- Threat
- QAR1(F)
- Vars
- Q(f);XR(G)::S(D),XQ(f)
- P(g);XQ(F)::S(D),XP(g)
- P(c);OGATEB::B(A)
- R(a);N_GUARD::QAB1(F)
- R(a);N_GUARD::B(A)
- R(a);N_GUARD::B(A),XR(a)
- R(a);S_CUTB(b)::QAR1(F)
- B(b);S_CUTR(a)::QAB1(F)
- S(i);N_GUARD::QAB1(F),XS(i)
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).