MESON Chess Problem Database
Problem Display
PID: 157604 (R2Q4/8/br6/p7/1p1P4/kB5R/N1p4B/K1N5 w - - 0 1)
Cristoffanini, Guido
L'Avvenire d'Italia, 1925
#2
9 + 6
| 15148 | Sadier Collection | 2016 |
SOLUTION
- SOUND
- Sets
- 1...Rc6
- 2.Qxa5#
- 1...Rd6
- 2.Qxa5#
- 1...Re6
- 2.Qxa5#
- 1...Rf6
- 2.Qxa5#
- 1...Rg6
- 2.Qxa5#
- 1...Rh6
- 2.Qxa5#
- 1...Rb7
- 2.Qxa5#
- 1...Rb8
- 2.Qxa5#
- 1...Bf1
- 2.Rxa5#
- 1...Be2
- 2.Rxa5#
- 1...Bd3
- 2.Rxa5#
- 1...Bc4
- 2.Rxa5#
- 1...Bb7
- 2.Rxa5#
- 1...Bc8
- 2.Rxa5#
- 1...Rc6
- Tries
- 1.Bxc2+?
- 1...Bd3
- 2.Rxa5#
- 1...b3!
- 1...Bd3
- 1.Qxb6?
- threat
- 2.Qxa5#
- 1...a4
- 2.Qxb4#
- 1...Bb5!
- threat
- 1.Bxc2+?
- Keys
- 1.Bd6!
- 1...Rxd6
- 2.Qxa5#
- 1...Rb5
- 2.Bxc2#
- 1...Rc6
- 2.Qxa5#
- 1...Rb7
- 2.Qxa5#
- 1...Rb8
- 2.Qxa5#
- 1...Bf1
- 2.Rxa5#
- 1...Be2
- 2.Rxa5#
- 1...Bd3
- 2.Rxa5#
- 1...Bc4
- 2.Rxa5#
- 1...Bb5
- 2.Bxb4#
- 1...Bb7
- 2.Rxa5#
- 1...Bc8
- 2.Rxa5#
- 1...a4
- 2.Bc4#
- 1...Rxd6
- 1.Bd6!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 4
- Sets
- R(f);OGATE::QAR2(I),XP(d)
- B(e);OGATE,P_SPINP(d)::R(H),XP(d)
- Tries
- Try
- B(E);CHECK,XP(a)
- Vars
- B(e);OGATE,P_SPINB(e),P_SPINP(d)::R(H),XP(d)
- Refutation
- P(c);P_SPINP(c)
- Try
- Q(I);XR(f)
- Threat
- QAR2(I),XP(d)
- Vars
- P(d);N_GUARD::QAB1(I),XP(c)
- Refutation
- B(e);P_SPINP(d)
- Try
- Actual
- B(D);P_PINP(c)
- Vars
- R(f);N_SPINP(c),OGATE,XB(D)::QAR2(I),XP(d)
- R(f);S_CUTB(e)::R(F)+B(E),XP(a)
- R(f);OGATE::QAR2(I),XP(d)
- B(e);OGATE::R(H),XP(d)
- B(e);S_CUTP(d),S_CUTR(f)::B(D),XP(c)
- P(d);SBLOCK::R(F)+B(E)
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).