MESON Chess Problem Database
Problem Display
PID: 169151 (8/1p3p2/1QP1prp1/4R3/r2P1kP1/2P1p2K/6B1/8 w - - 0 1)
Navon, Emanuel
3rd Prize, SuperProblem 164. TT, 2016
#2
8 + 8
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Rxd4
- 2.Qxd4#
- 1...g5
- 2.Re4#
- 1...Rxd4
- Tries
- 1.Kh4?
- threat
- 2.Re4#
- 1...Rxd4
- 2.Qxd4#
- 1...g5+!
- threat
- 1.Qc5?
- threat
- 2.Re4#
- 1...Rxd4
- 2.Qxd4#
- 1...Rf5!
- threat
- 1.Qc7?
- threat
- 2.Rf5#
- 1...Rf5
- 2.Rxf5#
- 1...e2!
- threat
- 1.d5?
- threat
- 2.Qxe3#
- 1...Kxe5
- 2.Qc7#
- 1...Rd4
- 2.Qxd4#
- 1...e2
- 2.Qe3#
- 1...Re4!
- threat
- 1.Kh4?
- Keys
- 1.Qd8!
- threat
- 2.Qxf6#
- 1...Rf5
- 2.Re4#
- threat
- 1.Qd8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 2
- Sets
- R(b);OGATE,XP(D)::QAR2(G),XR(b)
- P(f);SBLOCK::R1(F)
- Tries
- Try
- K(C);P-FLIGHT
- Threat
- R1(F)
- Vars
- R(b);OGATE,XP(D)::QAR2(G),XR(b)
- Refutation
- P(f);CHECK
- Try
- Q(G);
- Threat
- R1(F)
- Vars
- R(b);OGATE,XP(D)::QAR2(G),XR(b)
- Refutation
- R(e);
- Try
- Q(G);
- Threat
- QAB(G)+R(F),DCHECK
- Vars
- R(e);::QAB(G)+R(F),DCHECK,XR(e)
- Refutation
- P(a);
- Try
- P(D);
- Threat
- QAB1(G),XP(a)
- Vars
- K(c);OGATEB,S_FLIGHT,XR(F)::QAB(G)
- R(b);N_GUARD::QAR2(G),XR(b)
- P(a);::QAB1(G)
- Refutation
- R(b);
- Try
- Actual
- Q(G);
- Threat
- QAR2(G),XR(e)
- Vars
- R(e);::R1(F)
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).