MESON Chess Problem Database
Problem Display
PID: 202577 (R2NN3/1p4p1/1k6/p2R4/7r/4q3/p5Q1/Kb3nB1 w - - 0 1)
Nagy, Odon
Uj Nemezdek, 1923
#2
7 + 9
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Qd4+
- 2.Qb2#
- 1...Rh1
- 2.Qb2#
- 1...Rh3
- 2.Qb2#
- 1...Rh5
- 2.Qb2#
- 1...Rh6
- 2.Qb2#
- 1...Rh7
- 2.Qb2#
- 1...Rh8
- 2.Qb2#
- 1...Be4
- 2.Qb2#
- 1...Bg6
- 2.Qxg6#
- 1...Qd4+
- Tries
- 1.Bxe3+?
- 1...Rd4
- 2.Bxd4#
- 2.Qb2#
- 1...Sxe3!
- 1...Rd4
- 1.Rdxa5?
- threat
- 2.Qxb7#
- 1...Qd4+
- 2.Qb2#
- 1...Be4
- 2.Qb2#
- 1...Re4!
- threat
- 1.Qxg7?
- threat
- 2.Qf6#
- 2.Qxb7#
- 2.Qc7#
- 1...Qc5
- 2.Qxb7#
- 1...Rc4
- 2.Qxb7#
- 1...Rd4
- 2.Qxb7#
- 2.Qc7#
- 1...Re4
- 2.Qxb7#
- 2.Qc7#
- 1...Rf4
- 2.Qxb7#
- 2.Qc7#
- 1...Rh6
- 2.Qb2#
- 2.Qxb7#
- 2.Qc7#
- 1...Rh7
- 2.Qb2#
- 2.Qf6#
- 1...Bf5
- 2.Qxb7#
- 2.Qc7#
- 1...Qd4+!
- threat
- 1.Bxe3+?
- Keys
- 1.Re5!
- threat
- 2.Qxb7#
- 1...Qd4+
- 2.Qb2#
- 1...Re4
- 2.Qg6#
- 1...Be4
- 2.Qb2#
- threat
- 1.Re5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 7
- Sets
- Q(d);CHECK,S_CUTR(e)::QAR(C)
- R(e);N_GUARD::QAR(C)
- B(a);S_CUTR(e)::QAR(C)
- B(a);N_GUARD::QAR(C),XB(a)
- Tries
- Try
- B(B);CHECK,XQ(d)
- Refutation
- S(b);XB(B)
- Try
- R(D);XP(f)
- Threat
- QAR1(C),XP(h)
- Vars
- Q(d);CHECK,S_CUTR(e)::QAR(C)
- B(a);S_CUTR(e)::QAR(C)
- Refutation
- R(e);
- Try
- Q(C);XP(i)
- Threat
- DUALS(3)
- Vars
- Q(d);::QAR1(C),XP(h)
- R(e);::QAR1(C),XP(h)
- Refutation
- Q(d);CHECK
- Try
- Actual
- R(D);
- Threat
- QAR1(C),XP(h)
- Vars
- Q(d);CHECK,S_CUTR(e)::QAR(C)
- R(e);S_CUTB(a)::QAR(C)
- B(a);S_CUTR(e)::QAR(C)
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).