MESON Chess Problem Database
Problem Display
PID: 79848 (8/8/2K4R/b7/kB6/2Q5/r7/8 w - - 0 1)
Azhusin, Aleksandr Aleksandrovich
Mini-Matt, 1970
#2
4 + 3
| 3713 | Snap | 2008 |
SOLUTION
- SOUND
- Sets
- 1...Rb2
- 2.Qa3#
- 1...Rd2
- 2.Qa3#
- 1...Re2
- 2.Qa3#
- 1...Rf2
- 2.Qa3#
- 1...Rg2
- 2.Qa3#
- 1...Rh2
- 2.Qa3#
- 1...Ra3
- 2.Qxa3#
- 1...Rb2
- Tries
- 1.Bxa5?
- threat
- 2.Rh4#
- 2.Qb4#
- 1...Rc2
- 2.Rh4#
- 1...Rd2
- 2.Qb4#
- 1...Re2
- 2.Qb4#
- 1...Rf2
- 2.Qb4#
- 1...Rg2
- 2.Qb4#
- 1...Rh2
- 2.Qb4#
- 1...Rb2!
- threat
- 1.Bc5?
- 1...Bb4
- 2.Qxb4#
- 1...Ra1
- 2.Qc2#
- 1...Rb2
- 2.Qa3#
- 1...Rc2
- 2.Qxc2#
- 2.Qa3#
- 1...Rd2
- 2.Qa3#
- 1...Re2
- 2.Qa3#
- 1...Rf2
- 2.Qa3#
- 1...Rg2
- 2.Qa3#
- 1...Rh2
- 2.Qa3#
- 1...Ra3
- 2.Qxa3#
- 1...Bb6
- 2.Rh4#
- 2.Qb4#
- 1...Bc7
- 2.Qb4#
- 1...Bd8
- 2.Qb4#
- 1...Bxc3!
- 1...Bb4
- 1.Bd6?
- 1...Bb4
- 2.Qxb4#
- 1...Ra1
- 2.Qc2#
- 1...Rb2
- 2.Qa3#
- 1...Rc2
- 2.Qxc2#
- 1...Rd2
- 2.Qa3#
- 1...Re2
- 2.Qa3#
- 1...Rf2
- 2.Qa3#
- 1...Rg2
- 2.Qa3#
- 1...Rh2
- 2.Qa3#
- 1...Ra3
- 2.Qxa3#
- 1...Bb6
- 2.Qb4#
- 1...Bc7
- 2.Rh4#
- 2.Qb4#
- 1...Bd8
- 2.Qb4#
- 1...Bxc3!
- 1...Bb4
- 1.Be7?
- 1...Bb4
- 2.Qxb4#
- 1...Ra1
- 2.Qc2#
- 1...Rb2
- 2.Qa3#
- 1...Rc2
- 2.Qxc2#
- 1...Rd2
- 2.Qa3#
- 1...Re2
- 2.Qa3#
- 1...Rf2
- 2.Qa3#
- 1...Rg2
- 2.Qa3#
- 1...Rh2
- 2.Qa3#
- 1...Ra3
- 2.Qxa3#
- 1...Bb6
- 2.Qb4#
- 1...Bc7
- 2.Qb4#
- 1...Bd8
- 2.Rh4#
- 2.Qb4#
- 1...Bxc3!
- 1...Bb4
- 1.Bf8?
- 1...Bb4
- 2.Qxb4#
- 1...Ra1
- 2.Qc2#
- 1...Rb2
- 2.Qa3#
- 1...Rc2
- 2.Qxc2#
- 1...Rd2
- 2.Qa3#
- 1...Re2
- 2.Qa3#
- 1...Rf2
- 2.Qa3#
- 1...Rg2
- 2.Qa3#
- 1...Rh2
- 2.Qa3#
- 1...Ra3
- 2.Qxa3#
- 1...Bb6
- 2.Qb4#
- 1...Bc7
- 2.Qb4#
- 1...Bd8
- 2.Qb4#
- 1...Bxc3!
- 1...Bb4
- 1.Bxa5?
- Keys
- 1.Rh4!
- threat
- 2.Bxa5#
- 1...Bxb4
- 2.Qxb4#
- 1...Rb2
- 2.Qa3#
- 1...Rd2
- 2.Qa3#
- 1...Re2
- 2.Qa3#
- 1...Rf2
- 2.Qa3#
- 1...Rg2
- 2.Qa3#
- 1...Rh2
- 2.Qa3#
- 1...Bb6
- 2.Bc5#
- 1...Bc7
- 2.Bd6#
- 1...Bd8
- 2.Be7#
- threat
- 1.Rh4!
This anticipates 22226(1989)
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 1
- Sets
- R(a);N_GUARD::QAR1(A)
- R(a);N_GUARD::QAR1(A),XR(a)
- Tries
- Try
- B(B);XB(c)
- Threat
- DUALS(2)
- Vars
- R(a);P_PINQ(A)::R(D)
- R(a);::QAR1(A)
- Refutation
- R(a);
- Try
- B(B);
- Vars
- B(c);N_GUARD::QAR1(A),XB(c)
- R(a);N_GUARD::QAB(A)
- R(a);N_GUARD::QAR1(A)
- R(a);N_GUARD::QAR1(A),XR(a)
- B(c);N_GUARD::QAR1(A)
- Refutation
- B(c);XQ(A)
- Try
- B(B);
- Vars
- B(c);N_GUARD::QAR1(A),XB(c)
- R(a);N_GUARD::QAB(A)
- R(a);N_GUARD::QAR1(A)
- R(a);N_GUARD,P_PINQ(A)::QAB(A),XR(a)
- R(a);N_GUARD::QAR1(A),XR(a)
- B(c);N_GUARD::QAR1(A)
- Refutation
- B(c);XQ(A)
- Try
- B(B);
- Vars
- B(c);N_GUARD::QAR1(A),XB(c)
- R(a);N_GUARD::QAB(A)
- R(a);N_GUARD::QAR1(A)
- R(a);N_GUARD,P_PINQ(A)::QAB(A),XR(a)
- R(a);N_GUARD::QAR1(A),XR(a)
- B(c);N_GUARD::QAR1(A)
- Refutation
- B(c);XQ(A)
- Try
- B(B);
- Vars
- B(c);N_GUARD::QAR1(A),XB(c)
- R(a);N_GUARD::QAB(A)
- R(a);N_GUARD::QAR1(A)
- R(a);N_GUARD,P_PINQ(A)::QAB(A),XR(a)
- R(a);N_GUARD::QAR1(A),XR(a)
- B(c);N_GUARD::QAR1(A)
- Refutation
- B(c);XQ(A)
- Try
- Actual
- R(D);
- Threat
- R(D)+B(B),XB(c)
- Vars
- B(c);OGATE,P_SPINB(c),XB(B)::QAR1(A),XB(c)
- R(a);N_GUARD::QAR1(A)
- B(c);N_GUARD::R(D)+B(B)
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).