MESON Chess Problem Database
Problem Display
PID: 22226 (1r1kb3/3B4/2Q2K2/8/8/8/8/5R2 w - - 0 1)
Dikusarov, Andrey Nikolayovich
Buletin Problemistic, 1989
#2
4 + 3
| 2786 | More Fun with Chess Miniatures | 2000 |
| 3713 | Snap | 2008 |
SOLUTION
- SOUND
- Sets
- 1...Rb1
- 2.Qc8#
- 1...Rb2
- 2.Qc8#
- 1...Rb3
- 2.Qc8#
- 1...Rb4
- 2.Qc8#
- 1...Rb5
- 2.Qc8#
- 1...Rb7
- 2.Qc8#
- 1...Rc8
- 2.Qxc8#
- 1...Rb1
- Tries
- 1.Bh3?
- 1...Bd7
- 2.Qxd7#
- 1...Rb1
- 2.Qc8#
- 1...Rb2
- 2.Qc8#
- 1...Rb3
- 2.Qc8#
- 1...Rb4
- 2.Qc8#
- 1...Rb5
- 2.Qc8#
- 1...Rb6
- 2.Qxb6#
- 1...Rb7
- 2.Qc8#
- 1...Ra8
- 2.Qb6#
- 1...Rc8
- 2.Qxc8#
- 1...Bh5
- 2.Qd7#
- 1...Bg6
- 2.Qd7#
- 1...Bf7
- 2.Qd7#
- 1...Bxc6!
- 1...Bd7
- 1.Bg4?
- 1...Bd7
- 2.Qxd7#
- 1...Rb1
- 2.Qc8#
- 1...Rb2
- 2.Qc8#
- 1...Rb3
- 2.Qc8#
- 1...Rb4
- 2.Qc8#
- 1...Rb5
- 2.Qc8#
- 1...Rb6
- 2.Qxb6#
- 1...Rb7
- 2.Qc8#
- 1...Ra8
- 2.Qb6#
- 1...Rc8
- 2.Qxc8#
- 1...Bh5
- 2.Rd1#
- 2.Qd7#
- 1...Bg6
- 2.Qd7#
- 1...Bf7
- 2.Qd7#
- 1...Bxc6!
- 1...Bd7
- 1.Bf5?
- 1...Bd7
- 2.Qxd7#
- 1...Rb1
- 2.Qc8#
- 1...Rb2
- 2.Qc8#
- 1...Rb3
- 2.Qc8#
- 1...Rb4
- 2.Qc8#
- 1...Rb5
- 2.Qc8#
- 1...Rb6
- 2.Qxb6#
- 1...Rb7
- 2.Qc8#
- 1...Ra8
- 2.Qb6#
- 1...Rc8
- 2.Qxc8#
- 1...Bh5
- 2.Qd7#
- 1...Bg6
- 2.Rd1#
- 2.Qd7#
- 1...Bf7
- 2.Qd7#
- 1...Bxc6!
- 1...Bd7
- 1.Be6?
- 1...Bd7
- 2.Qxd7#
- 1...Rb1
- 2.Qc8#
- 1...Rb2
- 2.Qc8#
- 1...Rb3
- 2.Qc8#
- 1...Rb4
- 2.Qc8#
- 1...Rb5
- 2.Qc8#
- 1...Rb6
- 2.Qxb6#
- 2.Qc8#
- 1...Rb7
- 2.Qc8#
- 1...Ra8
- 2.Qb6#
- 1...Rc8
- 2.Qxc8#
- 1...Bh5
- 2.Qd7#
- 1...Bg6
- 2.Qd7#
- 1...Bf7
- 2.Rd1#
- 2.Qd7#
- 1...Bxc6!
- 1...Bd7
- 1.Bxe8?
- threat
- 2.Rd1#
- 2.Qd7#
- 1...Rb1
- 2.Qd7#
- 1...Rb2
- 2.Qd7#
- 1...Rb3
- 2.Qd7#
- 1...Rb4
- 2.Qd7#
- 1...Rb5
- 2.Qd7#
- 1...Rb6
- 2.Rd1#
- 1...Rb7!
- threat
- 1.Bh3?
- Keys
- 1.Rd1!
- threat
- 2.Bxe8#
- 1...Bxd7
- 2.Qxd7#
- 1...Rb1
- 2.Qc8#
- 1...Rb2
- 2.Qc8#
- 1...Rb3
- 2.Qc8#
- 1...Rb4
- 2.Qc8#
- 1...Rb5
- 2.Qc8#
- 1...Rb7
- 2.Qc8#
- 1...Bh5
- 2.Bg4#
- 1...Bg6
- 2.Bf5#
- 1...Bf7
- 2.Be6#
- threat
- 1.Rd1!
Anticipated by 79848(1970)
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 1
- Sets
- R(a);N_GUARD::QAR1(B)
- R(a);N_GUARD::QAR1(B),XR(a)
- Tries
- Try
- B(D);
- Vars
- B(c);N_GUARD::QAR1(B),XB(c)
- R(a);N_GUARD::QAR1(B)
- R(a);N_GUARD,P_PINQ(B)::QAB(B),XR(a)
- R(a);N_GUARD::QAB(B)
- R(a);N_GUARD::QAR1(B),XR(a)
- B(c);N_GUARD::QAR1(B)
- Refutation
- B(c);XQ(B)
- Try
- B(D);
- Vars
- B(c);N_GUARD::QAR1(B),XB(c)
- R(a);N_GUARD::QAR1(B)
- R(a);N_GUARD,P_PINQ(B)::QAB(B),XR(a)
- R(a);N_GUARD::QAB(B)
- R(a);N_GUARD::QAR1(B),XR(a)
- B(c);N_GUARD::QAR1(B)
- Refutation
- B(c);XQ(B)
- Try
- B(D);
- Vars
- B(c);N_GUARD::QAR1(B),XB(c)
- R(a);N_GUARD::QAR1(B)
- R(a);N_GUARD,P_PINQ(B)::QAB(B),XR(a)
- R(a);N_GUARD::QAB(B)
- R(a);N_GUARD::QAR1(B),XR(a)
- B(c);N_GUARD::QAR1(B)
- Refutation
- B(c);XQ(B)
- Try
- B(D);
- Vars
- B(c);N_GUARD::QAR1(B),XB(c)
- R(a);N_GUARD::QAR1(B)
- R(a);N_GUARD::QAB(B)
- R(a);N_GUARD::QAR1(B),XR(a)
- B(c);N_GUARD::QAR1(B)
- Refutation
- B(c);XQ(B)
- Try
- B(D);XB(c)
- Threat
- DUALS(2)
- Vars
- R(a);::QAR1(B)
- R(a);P_PINQ(B)::R(A)
- Refutation
- R(a);
- Try
- Actual
- R(A);
- Threat
- R(A)+B(D),XB(c)
- Vars
- B(c);OGATE,P_SPINB(c),XB(D)::QAR1(B),XB(c)
- R(a);N_GUARD::QAR1(B)
- B(c);N_GUARD::R(A)+B(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).