MESON Chess Problem Database
Problem Display
PID: 242379 (qb4Q1/p5Nr/5P2/1p3r2/p2Bkp2/6p1/2PR2N1/3K1R2 w - - 0 1)
Morra, Juan Carlos
Problemas, 1962
#2
9 + 10
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Re5
- 2.Rxf4#
- 1...Be5
- 2.Qxa8#
- 1...f3
- 2.Re1#
- 1...Re5
- Tries
- 1.Qb3?
- threat
- 2.Re1#
- 2.Qf3#
- 1...Rh1
- 2.Qf3#
- 1...f3
- 2.Re1#
- 1...axb3!
- threat
- 1.Qc4?
- threat
- 2.Re2#
- 1...f3
- 2.Re1#
- 1...bxc4!
- threat
- 1.Qe6+?
- 1...Re5
- 2.Rxf4#
- 1...Be5!
- 1...Re5
- 1.Qe8+?
- 1...Kd5
- 2.Qe6#
- 1...Be5
- 2.Qxa8#
- 1...Re5!
- 1...Kd5
- 1.Qb3?
- Keys
- 1.Be5!
- threat
- 2.Re2#
- 1...Kxe5
- 2.Qe6#
- 1...Rxe5
- 2.Rxf4#
- 1...Bxe5
- 2.Qxa8#
- 1...Qd5
- 2.Qxd5#
- 1...f3
- 2.Re1#
- threat
- 1.Be5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- R(f);N_GUARD,S_CUTB(j)::R1(B),XP(d)
- B(j);OGATE::QAB(I),XQ(i)
- P(d);SBLOCK::R(B)
- Tries
- Try
- Q(I);
- Threat
- DUALS(2)
- Vars
- R(h);P_PINR(B)::QAB1(I)
- P(d);::R(B)
- Refutation
- P(b);XQ(I)
- Try
- Q(I);
- Threat
- R(D)
- Vars
- P(d);SBLOCK::R(B)
- Refutation
- P(e);XQ(I)
- Try
- Q(I);CHECK
- Vars
- R(f);P_SPINR(f)::R1(B),XP(d)
- Refutation
- B(j);P_SPINB(j)
- Try
- Q(I);CHECK
- Vars
- K(c);S_FLIGHT::QAB1(I)
- B(j);OGATE,P_SPINB(j)::QAB(I),XQ(i)
- Refutation
- R(f);P_SPINR(f)
- Try
- Actual
- B(F);
- Threat
- R(D)
- Vars
- K(c);OGATEB,P-FLIGHT,XB(F)::QAR1(I)
- R(f);N_GUARD,SBLOCK,XB(F)::R1(B),XP(d)
- B(j);OGATE,SBLOCK,XB(F)::QAB(I),XQ(i)
- Q(i);N_GUARD,P_PINR(D)::QAB1(I),XQ(i)
- P(d);SBLOCK::R(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).