MESON Chess Problem Database
Problem Display
PID: 161256 (q1bNN3/p2n1p2/r7/b2k4/2R1R3/8/8/3K3Q w - - 0 1)
Apro, Laszlo
Magyar Sakkelet, 1956
#2
6 + 8
| 15148 | Sadier Collection | 2017 |
SOLUTION
- SOUND
- Sets
- 1...Sc5
- 2.Rcd4#
- 1...Se5
- 2.Red4#
- 1...Sc5
- Tries
- 1.Sc7+?
- 1...Kd6
- 2.Sxf7#
- 1...Bxc7!
- 1...Kd6
- 1.Qf3?
- threat
- 2.Qd3#
- 1...Bb6
- 2.Qxf7#
- 1...Sc5
- 2.Rcd4#
- 1...Se5
- 2.Red4#
- 1...Bc3!
- threat
- 1.Qf1?
- threat
- 2.Qd3#
- 1...Bb6
- 2.Qxf7#
- 1...Sc5
- 2.Rcd4#
- 1...Se5
- 2.Red4#
- 1...Bc3!
- threat
- 1.Qh5+?
- 1...Se5
- 2.Red4#
- 2.Qxe5#
- 1...f5!
- 1...Se5
- 1.Sc7+?
- Keys
- 1.Qh2!
- threat
- 2.Red4#
- 1...Bxd8
- 2.Qd2#
- 1...Bc3
- 2.Sc7#
- 1...Bb6
- 2.Qd6#
- threat
- 1.Qh2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 2
- Sets
- S(e);SBLOCK::R1(C)
- S(e);SBLOCK::QAB(B)+R(D),DCHECK
- Tries
- Try
- S(F);CHECK
- Vars
- K(b);P-FLIGHT::S(E),XP(f)
- Refutation
- B(a);XS(F)
- Try
- Q(B);
- Threat
- QAR2(B)
- Vars
- B(a);S_CUTR(c)::QAB(B),XP(f)
- S(e);SBLOCK::R1(C)
- S(e);SBLOCK::QAB(B)+R(D),DCHECK
- Refutation
- B(a);
- Try
- Q(B);
- Threat
- QAR2(B)
- Vars
- B(a);S_CUTR(c)::QAB(B),XP(f)
- S(e);SBLOCK::R1(C)
- S(e);SBLOCK::R1(D)
- Refutation
- B(a);
- Try
- Q(B);CHECK
- Refutation
- P(f);P_SPINP(f)
- Try
- Actual
- Q(B);
- Threat
- R1(D)
- Vars
- B(a);N_GUARD,XS(E)::QAR(B)
- B(a);N_GUARD::S(F)
- B(a);S_CUTR(c)::QAR1(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).