MESON Chess Problem Database
Problem Display
PID: 159936 (3B1bK1/8/2P3p1/1N1Q4/rk2rN2/p5q1/PpRP4/8 w - - 0 1)
Amirov, Talip Khasanovich
Die Schwalbe, 1967
#2
9 + 8
| 15148 | Sadier Collection | 2017 |
SOLUTION
- SOUND
- Sets
- 1...Qe1
- 2.Sd3#
- 2.Qb3#
- 1...Qf2
- 2.Sd3#
- 2.Qb3#
- 1...Qh2
- 2.Sd3#
- 2.Qb3#
- 1...Qxf4
- 2.Qb3#
- 1...Qh4
- 2.Sd3#
- 2.Qb3#
- 1...Qg1
- 2.Sd3#
- 2.Qb3#
- 1...Qg2
- 2.Sd3#
- 2.Qb3#
- 1...Qb3
- 2.Qxb3#
- 1...Qc3
- 2.dxc3#
- 1...Qd3
- 2.Sxd3#
- 1...Qg4
- 2.Sd3#
- 2.Qb3#
- 1...Qg5
- 2.Sd3#
- 2.Qb3#
- 1...Re1
- 2.Rc4#
- 2.Qc4#
- 1...Re2
- 2.Rc4#
- 2.Qc4#
- 1...Re3
- 2.Rc4#
- 2.Qc4#
- 1...Rc4
- 2.Rxc4#
- 2.Qxc4#
- 1...Re5
- 2.Rc4#
- 2.Qc4#
- 1...Re6
- 2.Rc4#
- 2.Qc4#
- 1...Re7
- 2.Rc4#
- 2.Qc4#
- 2.Qc5#
- 1...Re8
- 2.Rc4#
- 2.Qc4#
- 1...Bc5
- 2.Qxc5#
- 1...Bh6
- 2.Qc5#
- 1...Bg7
- 2.Qc5#
- 1...Qe1
- Tries
- 1.Sd4?
- threat
- 2.Rc4#
- 2.Qc4#
- 2.Qb5#
- 1...Ra5
- 2.Rc4#
- 2.Qc4#
- 2.Qxa5#
- 1...Qb3
- 2.Qxb3#
- 1...Qc3
- 2.Qb5#
- 2.dxc3#
- 1...Qd3
- 2.Sxd3#
- 1...Qg5
- 2.Sd3#
- 2.Rc4#
- 2.Qb3#
- 2.Qc4#
- 1...Re5
- 2.Rc4#
- 2.Qc4#
- 1...Bc5
- 2.Rc4#
- 2.Qc4#
- 2.Qxc5#
- 1...Rxd4!
- threat
- 1.Sd6?
- threat
- 2.Qxe4#
- 2.Qb5#
- 2.Qc5#
- 1...Qxf4
- 2.Qb3#
- 2.Qb5#
- 2.Qc5#
- 1...Rxf4
- 2.Qb5#
- 2.Qc5#
- 1...Ra5
- 2.Qxe4#
- 2.Qxa5#
- 1...Ra6
- 2.Qxe4#
- 2.Qb5#
- 1...Ra7
- 2.Qxe4#
- 2.Qb5#
- 1...Ra8
- 2.Qxe4#
- 2.Qb5#
- 1...Qe1
- 2.Sd3#
- 2.Qb3#
- 2.Qb5#
- 2.Qc5#
- 1...Qf2
- 2.Sd3#
- 2.Qb3#
- 2.Qb5#
- 1...Qg1
- 2.Sd3#
- 2.Qb3#
- 2.Qb5#
- 1...Qg2
- 2.Sd3#
- 2.Qb3#
- 2.Qb5#
- 2.Qc5#
- 1...Qb3
- 2.Qxb3#
- 1...Qc3
- 2.Qb5#
- 2.dxc3#
- 1...Qd3
- 2.Sxd3#
- 2.Qc5#
- 1...Qe3
- 2.Qb5#
- 1...Qf3
- 2.Qb5#
- 2.Qc5#
- 1...Qg5
- 2.Sd3#
- 2.Qb3#
- 2.Qxe4#
- 1...Re1
- 2.Rc4#
- 2.Qc4#
- 2.Qd4#
- 2.Qb5#
- 2.Qc5#
- 1...Re2
- 2.Rc4#
- 2.Qc4#
- 2.Qd4#
- 2.Qb5#
- 2.Qc5#
- 1...Re3
- 2.Rc4#
- 2.Qc4#
- 2.Qd4#
- 2.Qb5#
- 2.Qc5#
- 1...Rc4
- 2.Rxc4#
- 2.Qxc4#
- 2.Qb5#
- 1...Rd4
- 2.Qxd4#
- 2.Qb5#
- 2.Qc5#
- 1...Re5
- 2.Rc4#
- 2.Qc4#
- 2.Qd4#
- 1...Re6
- 2.Rc4#
- 2.Qc4#
- 2.Qd4#
- 2.Qb5#
- 2.Qc5#
- 1...Re7
- 2.Rc4#
- 2.Qc4#
- 2.Qd4#
- 2.Qb5#
- 2.Qc5#
- 1...Re8
- 2.Rc4#
- 2.Qc4#
- 2.Qd4#
- 2.Qb5#
- 2.Qc5#
- 1...Bg7
- 2.Qb5#
- 2.Qc5#
- 1...Bxd6!
- threat
- 1.Sa7?
- threat
- 2.Qxe4#
- 2.Qb5#
- 1...Qxf4
- 2.Qb3#
- 2.Qb5#
- 1...Rxf4
- 2.Qb5#
- 1...Ra5
- 2.Qxe4#
- 2.Qxa5#
- 1...Qe1
- 2.Sd3#
- 2.Qb3#
- 2.Qb5#
- 1...Qf2
- 2.Sd3#
- 2.Qb3#
- 2.Qb5#
- 1...Qg1
- 2.Sd3#
- 2.Qb3#
- 2.Qb5#
- 1...Qg2
- 2.Sd3#
- 2.Qb3#
- 2.Qb5#
- 1...Qb3
- 2.Qxb3#
- 1...Qc3
- 2.Qb5#
- 2.dxc3#
- 1...Qd3
- 2.Sxd3#
- 1...Qe3
- 2.Qb5#
- 1...Qf3
- 2.Qb5#
- 1...Qg5
- 2.Sd3#
- 2.Qb3#
- 2.Qxe4#
- 1...Re1
- 2.Rc4#
- 2.Qc4#
- 2.Qd4#
- 2.Qb5#
- 1...Re2
- 2.Rc4#
- 2.Qc4#
- 2.Qd4#
- 2.Qb5#
- 1...Re3
- 2.Rc4#
- 2.Qc4#
- 2.Qd4#
- 2.Qb5#
- 1...Rc4
- 2.Rxc4#
- 2.Qxc4#
- 2.Qb5#
- 1...Rd4
- 2.Qxd4#
- 2.Qb5#
- 1...Re5
- 2.Rc4#
- 2.Qc4#
- 2.Qd4#
- 1...Re6
- 2.Rc4#
- 2.Qc4#
- 2.Qd4#
- 2.Qb5#
- 1...Re7
- 2.Rc4#
- 2.Qc4#
- 2.Qd4#
- 2.Qb5#
- 2.Qc5#
- 2.Qd6#
- 1...Re8
- 2.Rc4#
- 2.Qc4#
- 2.Qd4#
- 2.Qb5#
- 1...Bc5
- 2.Qxc5#
- 1...Bg7
- 2.Qb5#
- 2.Qc5#
- 2.Qd6#
- 1...Rxa7!
- threat
- 1.Sc7?
- threat
- 2.Qb5#
- 1...Ra5
- 2.Qxe4#
- 1...Bc5
- 2.Qxc5#
- 1...Qd3
- 2.Sxd3#
- 1...Qg5
- 2.Sd3#
- 1...Re5
- 2.Rc4#
- 1...Qb3!
- threat
- 1.Rxb2+?
- 1...Qb3
- 2.Sd3#
- 2.Rxb3#
- 1...axb2!
- 1...Qb3
- 1.Qd4+?
- 1...Kxb5
- 2.Qb6#
- 1...Rxd4!
- 1...Kxb5
- 1.Sd4?
- Keys
- 1.Sc3!
- threat
- 2.Qb5#
- 1...Qxc3
- 2.dxc3#
- 1...Qd3
- 2.Sxd3#
- 1...Qg5
- 2.Sd3#
- 1...Ra5
- 2.Bxa5#
- 1...Re5
- 2.Qd4#
- 1...Bc5
- 2.Qb3#
- threat
- 1.Sc3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 3
- REMOVED MATES = 4
- Sets
- Q(c);N_GUARD,XS(D)::QAR1(F)
- Q(c);N_GUARD,P_PINQ(F)::QAR1(F),XQ(c)
- Q(c);OGATE::P(C),XQ(c)
- Q(c);N_GUARD::S(D),XQ(c)
- B(h);N_GUARD::QAB1(F),XB(h)
- B(h);N_GUARD::QAB1(F)
- Tries
- Try
- S(E);
- Threat
- DUALS(3)
- Vars
- Q(c);N_GUARD,P_PINQ(F)::QAR1(F),XQ(c)
- Q(c);N_GUARD::S(D),XQ(c)
- Refutation
- R(f);XS(E)
- Try
- S(E);
- Threat
- DUALS(3)
- Vars
- Q(c);N_GUARD,P_PINQ(F)::QAR1(F),XQ(c)
- Q(c);::QAR1(F)
- Refutation
- B(h);XS(E)
- Try
- S(E);
- Threat
- DUALS(2)
- Vars
- R(f);XS(D)::QAR1(F)
- Q(c);N_GUARD,P_PINQ(F)::QAR1(F),XQ(c)
- Q(c);N_GUARD::S(D),XQ(c)
- Q(c);::QAR1(F)
- B(h);N_GUARD::QAB1(F),XB(h)
- Refutation
- R(d);XS(E)
- Try
- S(E);
- Threat
- QAR1(F)
- Vars
- R(d);SBLOCK::QAR(F),XR(f)
- B(h);N_GUARD::QAB1(F),XB(h)
- Q(c);N_GUARD::S(D),XQ(c)
- Q(c);N_GUARD::S(D)
- R(f);N_GUARD::R1(B)
- Refutation
- Q(c);P_PINQ(F)
- Try
- R(B);CHECK,XP(a)
- Refutation
- P(b);XR(B)
- Try
- Q(F);CHECK
- Vars
- K(e);OGATEB,P-FLIGHT,XS(E)::QAR1(F)
- Refutation
- R(f);XQ(F)
- Try
- Actual
- S(E);
- Threat
- QAR1(F)
- Vars
- Q(c);OGATE,XS(E)::P(C),XQ(c)
- Q(c);N_GUARD::S(D),XQ(c)
- Q(c);N_GUARD::S(D)
- R(d);N_GUARD::B(H),XR(d)
- R(f);N_GUARD::QAR2(F)
- B(h);SBLOCK::QAR1(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).