MESON Chess Problem Database
Problem Display
PID: 163157 (5rN1/1R1pp1b1/Q1r1kpK1/8/Rn6/3p3N/7B/8 w - - 0 1)
Sardella, Giuseppe
Best Problems, 2013
#2
7 + 9
SOLUTION
- SOUND
- Sets
- 1...Sd5
- 2.Re4#
- 1...d5
- 2.Rxe7#
- 1...Sd5
- Tries
- 1.Qxd3?
- threat
- 2.Qe4#
- 2.Qf5#
- 2.Qxd7#
- 1...Rc4
- 2.Qf5#
- 2.Qxd7#
- 1...Rc5
- 2.Qxd7#
- 1...Rd6
- 2.Qe4#
- 2.Qf5#
- 1...Rc7
- 2.Qe4#
- 2.Qf5#
- 1...Rd8
- 2.Qe4#
- 2.Qf5#
- 1...Sd5
- 2.Re4#
- 2.Qe4#
- 2.Qf5#
- 1...f5
- 2.Sg5#
- 2.Qxd7#
- 1...d5
- 2.Rxe7#
- 2.Qe2#
- 2.Qf5#
- 2.Qe3#
- 1...d6
- 2.Rxe7#
- 2.Qe4#
- 2.Qf5#
- 1...Sxd3!
- threat
- 1.Qc4+?
- 1...Sd5
- 2.Qe4#
- 1...d5
- 2.Rxe7#
- 1...Rxc4!
- 1...Sd5
- 1.Qa5?
- threat
- 2.Qf5#
- 1...Sd5
- 2.Re4#
- 1...f5
- 2.Sg5#
- 1...d5
- 2.Rxe7#
- 1...Rc5!
- threat
- 1.Qxd3?
- Keys
- 1.Qb5!
- threat
- 2.Qf5#
- 1...Rc5
- 2.Qxd7#
- 1...Sd5
- 2.Re4#
- 1...f5
- 2.Sg5#
- 1...d5
- 2.Rxe7#
- threat
- 1.Qb5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- S(b);OGATE,SBLOCK::R(C)
- P(f);OGATE,SBLOCK::R1(F),XP(g)
- Tries
- Try
- Q(D);N_PINR(c),XP(a)
- Threat
- DUALS(3)
- Vars
- R(c);::QAB1(D),XP(f)
- Refutation
- S(b);XQ(D)
- Try
- Q(D);CHECK,N_PINR(c)
- Vars
- S(b);P_SPINS(b)::QAR2(D)
- P(f);OGATE,P_SPINP(f)::R1(F),XP(g)
- Refutation
- R(c);XQ(D)
- Try
- Q(D);N_PINR(c)
- Threat
- QAB1(D)
- Vars
- S(b);OGATE::R(C)
- P(e);N_GUARD::S(B)
- P(f);OGATE::R1(F),XP(g)
- Refutation
- R(c);
- Try
- Actual
- Q(D);N_PINR(c)
- Threat
- QAB1(D)
- Vars
- R(c);OGATE::QAB1(D),XP(f)
- S(b);OGATE::R(C)
- P(e);N_GUARD::S(B)
- P(f);OGATE::R1(F),XP(g)
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).