MESON Chess Problem Database
Problem Display
PID: 12230 (1B6/3K4/8/pRpk4/7R/8/1r2p3/Q3b3 w - - 0 1)
Azhusin, Aleksandr Aleksandrovich
Vecherni Leningrad, 1976
#2
5 + 6
| 23 | Die Schwalbe | 2015 |
SOLUTION
- SOUND
- Sets
- 1...Rb1
- 2.Rd4#
- 2.Qd4#
- 2.Qe5#
- 1...Ra2
- 2.Rd4#
- 2.Qd4#
- 2.Qe5#
- 2.Qxa2#
- 1...Rc2
- 2.Rd4#
- 2.Qd4#
- 2.Qe5#
- 1...Rd2
- 2.Qe5#
- 1...Rb3
- 2.Rd4#
- 2.Qd4#
- 2.Qe5#
- 1...Rb4
- 2.Qe5#
- 1...Rxb5
- 2.Qe5#
- 1...Bd2
- 2.Qh1#
- 1...Bf2
- 2.Qh1#
- 1...Bc3
- 2.Qh1#
- 1...Bg3
- 2.Qh1#
- 1...Bb4
- 2.Qh1#
- 1...Rb1
- Tries
- 1.Bd6?
- threat
- 2.Rxc5#
- 1...Rxb5
- 2.Qe5#
- 1...Rc2
- 2.Rd4#
- 2.Qd4#
- 2.Qe5#
- 1...Bf2
- 2.Qh1#
- 1...Bb4
- 2.Qh1#
- 1...Bxh4!
- threat
- 1.Rf4?
- 1...Rxb5
- 2.Qe5#
- 1...Rb1
- 2.Rd4#
- 2.Qd4#
- 2.Qe5#
- 1...Ra2
- 2.Rd4#
- 2.Qd4#
- 2.Qe5#
- 2.Qxa2#
- 1...Rc2
- 2.Rd4#
- 2.Qd4#
- 2.Qe5#
- 1...Rd2
- 2.Qe5#
- 1...Rb3
- 2.Rd4#
- 2.Qd4#
- 2.Qe5#
- 1...Rb4
- 2.Qe5#
- 1...Bd2
- 2.Qh1#
- 1...Bf2
- 2.Qh1#
- 1...Bc3
- 2.Qh1#
- 1...Bg3
- 2.Qh1#
- 1...Bb4
- 2.Qh1#
- 1...Bh4
- 2.Qh1#
- 1...a4!
- 1...Rxb5
- 1.Rg4?
- 1...Rxb5
- 2.Qe5#
- 1...Rb1
- 2.Rd4#
- 2.Qd4#
- 2.Qe5#
- 1...Ra2
- 2.Rd4#
- 2.Qd4#
- 2.Qe5#
- 2.Qxa2#
- 1...Rc2
- 2.Rd4#
- 2.Qd4#
- 2.Qe5#
- 1...Rd2
- 2.Qe5#
- 1...Rb3
- 2.Rd4#
- 2.Qd4#
- 2.Qe5#
- 1...Rb4
- 2.Qe5#
- 1...Bd2
- 2.Qh1#
- 1...Bf2
- 2.Qh1#
- 1...Bc3
- 2.Qh1#
- 1...Bg3
- 2.Qh1#
- 1...Bb4
- 2.Qh1#
- 1...Bh4
- 2.Qh1#
- 1...a4!
- 1...Rxb5
- 1.Qxb2?
- threat
- 2.Rd4#
- 2.Qd4#
- 2.Qe5#
- 2.Qa2#
- 2.Qb3#
- 1...a4
- 2.Rd4#
- 2.Qd4#
- 2.Qe5#
- 2.Qa2#
- 1...Bf2
- 2.Qe5#
- 2.Qa2#
- 2.Qb3#
- 1...Bc3
- 2.Qa2#
- 2.Qb3#
- 1...Bg3
- 2.Rd4#
- 2.Qd4#
- 2.Qa2#
- 2.Qd2#
- 2.Qb3#
- 1...Bxh4!
- threat
- 1.Qc1?
- threat
- 2.Rxc5#
- 2.Qg5#
- 2.Qc4#
- 2.Qxc5#
- 1...Rxb5
- 2.Qg5#
- 2.Qc4#
- 1...Rc2
- 2.Qg5#
- 1...Rd2
- 2.Rxc5#
- 2.Qc4#
- 2.Qxc5#
- 1...Rb4
- 2.Rxc5#
- 2.Qg5#
- 2.Qxc5#
- 1...Bd2
- 2.Rxc5#
- 2.Qh1#
- 2.Qc4#
- 2.Qxc5#
- 1...Bf2
- 2.Qg5#
- 2.Qh1#
- 2.Qc4#
- 1...Bc3
- 2.Qh1#
- 1...Bg3
- 2.Rxc5#
- 2.Qh1#
- 2.Qc4#
- 2.Qxc5#
- 1...Bb4
- 2.Qg5#
- 2.Qh1#
- 2.Qc4#
- 1...Bxh4!
- threat
- 1.Qa2+?
- 1...Rb3
- 2.Qxb3#
- 1...Rxa2!
- 1...Rb3
- 1.Qa3?
- threat
- 2.Rxc5#
- 2.Qxc5#
- 2.Qd3#
- 2.Qf3#
- 1...Rxb5
- 2.Qd3#
- 2.Qf3#
- 1...Bxh4
- 2.Qd3#
- 1...Rc2
- 2.Qd3#
- 2.Qf3#
- 1...Rd2
- 2.Rxc5#
- 2.Qxc5#
- 2.Qb3#
- 2.Qf3#
- 1...Rb3
- 2.Rxc5#
- 2.Qxc5#
- 2.Qxb3#
- 1...Bf2
- 2.Qf3#
- 1...Bc3
- 2.Rxc5#
- 2.Qxc5#
- 1...Bb4
- 2.Qd3#
- 2.Qf3#
- 1...Rb4!
- threat
- 1.Bd6?
- Keys
- 1.Rbb4!
- threat
- 2.Rh5#
- 1...Rxb4
- 2.Qe5#
- 1...Bxb4
- 2.Qh1#
- 1...Bxh4
- 2.Qh1#
- 1...axb4
- 2.Qa8#
- 1...cxb4
- 2.Qxa5#
- 1...c4
- 2.Qxa5#
- 1...Bd2
- 2.Qh1#
- 1...Bc3
- 2.Qh1#
- 1...Bg3
- 2.Qh1#
- threat
- 1.Rbb4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 3
- Sets
- R(b);OGATE::QAR1(A)
- R(b);N_SPINP(e),OGATE,XR(C)::QAR1(A)
- B(a);OGATE::QAB(A)
- Tries
- Try
- B(E);
- Threat
- R1(C),XP(e)
- Vars
- R(b);N_SPINP(e),OGATE,XR(C)::QAR1(A)
- B(a);OGATE::QAB(A)
- Refutation
- B(a);XR(B)
- Try
- R(B);
- Vars
- R(b);N_SPINP(e),OGATE,XR(C)::QAR1(A)
- R(b);OGATE::QAR1(A)
- B(a);OGATE::QAB(A)
- Refutation
- P(d);
- Try
- R(B);
- Vars
- R(b);N_SPINP(e),OGATE,XR(C)::QAR1(A)
- R(b);OGATE::QAR1(A)
- B(a);OGATE::QAB(A)
- Refutation
- P(d);
- Try
- Q(A);XR(b)
- Threat
- DUALS(5)
- Refutation
- B(a);XR(B)
- Try
- Q(A);
- Threat
- DUALS(4)
- Vars
- R(b);::QAR(A)
- B(a);OGATE::QAB(A)
- Refutation
- B(a);XR(B)
- Try
- Q(A);CHECK
- Vars
- R(b);N_GUARD,P_SPINR(b)::QAB(A),XR(b)
- Refutation
- R(b);XQ(A)
- Try
- Q(A);
- Threat
- DUALS(4)
- Vars
- B(a);XR(B)::QAR2(A)
- B(a);::QAB(A)
- Refutation
- R(b);
- Try
- Actual
- R(C);N_PINP(e)
- Threat
- R(B)
- Vars
- R(b);OGATE,XR(C)::QAR1(A)
- B(a);OGATE,XR(C)::QAB(A)
- B(a);OGATE,XR(B)::QAB(A)
- P(d);OGATE,XR(C)::QAB(A)
- P(e);OGATEB,XR(C)::QAR(A),XP(d)
- P(e);OGATEB::QAR(A),XP(d)
- B(a);OGATE::QAB(A)
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).