MESON Chess Problem Database
Problem Display
PID: 261420 (8/4r3/2R5/1p6/8/3kP2Q/6B1/3K2b1 w - - 0 1)
Azhusin, Aleksandr Aleksandrovich
Neue Zurcher Zeitung, 2001
#2
5 + 4
| 6490 | yacpdb | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Rxe3
- 2.Qd7#
- 1...Re4
- 2.Bf1#
- 1...Rxe3
- Tries
- 1.Qg4?
- threat
- 2.Qe2#
- 2.Qd4#
- 1...Rxe3
- 2.Qd7#
- 1...Bxe3
- 2.Bf1#
- 1...Re4
- 2.Qe2#
- 2.Qxe4#
- 1...Rd7
- 2.Qe2#
- 2.Qe4#
- 1...Kxe3!
- threat
- 1.Qf5+?
- 1...Re4
- 2.Qxe4#
- 1...Kxe3!
- 1...Re4
- 1.Qd7+?
- 1...Kxe3
- 2.Qd2#
- 1...Rxd7!
- 1...Kxe3
- 1.Qf3?
- threat
- 2.Bf1#
- 2.Qe2#
- 1...Rxe3
- 2.Qd5#
- 1...Bxe3!
- threat
- 1.e4+?
- 1...Kd4
- 2.Qc3#
- 1...Be3!
- 1...Kd4
- 1.Qg4?
- Keys
- 1.Qh4!
- threat
- 2.Qd4#
- 1...Kxe3
- 2.Rc3#
- 1...Rxe3
- 2.Qd8#
- 1...Bxe3
- 2.Bf1#
- 1...Re4
- 2.Qxe4#
- 1...Rd7
- 2.Qe4#
- threat
- 1.Qh4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- R(d);N_GUARD,P_SPINR(d),SBLOCK,XP(C)::QAR(D)
- R(d);SBLOCK::B(B)
- Tries
- Try
- Q(D);
- Threat
- DUALS(2)
- Vars
- R(d);N_GUARD,SBLOCK,XP(C)::QAR(D)
- B(a);SBLOCK,XP(C)::B(B)
- Refutation
- K(b);P-FLIGHT,XP(C)
- Try
- Q(D);CHECK
- Vars
- R(d);N_GUARD,P_SPINR(d)::QAB1(D),XR(d)
- Refutation
- K(b);P-FLIGHT,XP(C)
- Try
- Q(D);CHECK
- Vars
- K(b);OGATE,P-FLIGHT,XP(C)::QAB1(D)
- Refutation
- R(d);XQ(D)
- Try
- Q(D);
- Threat
- DUALS(2)
- Vars
- R(d);P_SPINR(d),SBLOCK,XP(C)::QAR2(D)
- Refutation
- B(a);P_SPINB(a),XP(C)
- Try
- P(C);CHECK
- Vars
- K(b);OGATE,P-FLIGHT::QAB1(D)
- Refutation
- B(a);P_SPINB(a)
- Try
- Actual
- Q(D);
- Threat
- QAR1(D)
- Vars
- K(b);N_GUARD,P-FLIGHT,XP(C)::R(E)
- R(d);OGATE,SBLOCK,XP(C)::QAR(D)
- B(a);SBLOCK,XP(C)::B(B)
- R(d);N_GUARD::QAB1(D),XR(d)
- R(d);N_GUARD::QAB1(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).