MESON Chess Problem Database
Problem Display
PID: 28301 (8/3B4/6pp/3Rq2k/5Q1B/1r5p/1b5K/8 w - - 0 1)
Mari, Alberto
L'Opera compositiva di Alberto Mari, 1999
#2
5 + 7
| 3242 | BCPS Rapid Solving (Cheltenham) | 2001 |
SOLUTION
- SOUND
- Sets
- 1...Qxd5
- 2.Qg4#
- 1...Qg5
- 2.Qg4#
- 1...Qxd5
- Tries
- 1.Bg3?
- threat
- 2.Bg4#
- 2.Qg4#
- 2.Qh4#
- 1...g5
- 2.Qf7#
- 1...Qf5
- 2.Qh4#
- 1...Rb4
- 2.Bg4#
- 1...Rxg3!
- threat
- 1.Bf6?
- threat
- 2.Bg4#
- 1...Rg3
- 2.Qh4#
- 1...Qf5
- 2.Qh4#
- 1...Qg5
- 2.Qg4#
- 1...g5!
- threat
- 1.Bd8?
- threat
- 2.Bg4#
- 1...Rg3
- 2.Qh4#
- 1...Qf5
- 2.Qh4#
- 1...Qg5
- 2.Qg4#
- 1...g5!
- threat
- 1.Rxe5+?
- 1...g5
- 2.Be8#
- 1...Bxe5!
- 1...g5
- 1.Bg3?
- Keys
- 1.Be7!
- threat
- 2.Bg4#
- 1...g5
- 2.Be8#
- 1...Rg3
- 2.Qh4#
- 1...Qf5
- 2.Qh4#
- 1...Qg5
- 2.Qg4#
- threat
- 1.Be7!
Composed 1928
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 1
- Sets
- Q(d);N_PINQ(B),N_SPINQ(d),XR(D)::QAB1(B)
- Q(d);N_PINQ(B)::QAB1(B)
- Tries
- Try
- B(C);N_SPINQ(B)
- Threat
- DUALS(3)
- Vars
- P(f);N_SPINQ(d),OGATEB,SBLOCK::QAB(B)
- Q(d);::QAR1(B)
- R(b);::B(E)
- Refutation
- R(b);XB(C)
- Try
- B(C);
- Threat
- B(E)
- Vars
- R(b);N_PINQ(B)::QAR1(B)
- Q(d);N_PINQ(B)::QAR1(B)
- Q(d);N_PINQ(B)::QAB1(B)
- Refutation
- P(f);N_SPINQ(d)
- Try
- B(C);
- Threat
- B(E)
- Vars
- R(b);N_PINQ(B)::QAR1(B)
- Q(d);N_PINQ(B)::QAR1(B)
- Q(d);N_PINQ(B)::QAB1(B)
- Refutation
- P(f);N_SPINQ(d)
- Try
- R(D);CHECK,N_SPINQ(B),XQ(d)
- Vars
- P(f);P_SPINP(f),S_CUTB(a)::B(E)
- Refutation
- B(a);P_PINQ(B),XR(D)
- Try
- Actual
- B(C);
- Threat
- B(E)
- Vars
- P(f);N_SPINQ(d),OGATEB::B(E)
- R(b);N_PINQ(B)::QAR1(B)
- Q(d);N_PINQ(B)::QAR1(B)
- Q(d);N_PINQ(B)::QAB1(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).