MESON Chess Problem Database
Problem Display
PID: 73760 (4r2q/6r1/b2B1p2/2R5/2p5/K1k2B1Q/3R4/5N2 w - - 0 1)
Oestreicher, Michael
Freie Presse, 1993
#2
7 + 7
| 6113 | Problemschach-Jahrbuch (1993) | 1994 |
SOLUTION
- SOUND
- Tries
- 1.Be4+?
- 1...Rg3
- 2.Qxg3#
- 1...Qxh3!
- 1...Rg3
- 1.Bg4+?
- 1...Re3
- 2.Qxe3#
- 1...Qxh3!
- 1...Re3
- 1.Bh5+?
- 1...Re3
- 2.Qxe3#
- 1...Rg3!
- 1...Re3
- 1.Rxc4+?
- 1...Bxc4
- 2.Bb4#
- 1...Kxc4!
- 1...Bxc4
- 1.Rg5?
- threat
- 2.Bb4#
- 1...Qf8
- 2.Be4#
- 1...Rb8
- 2.Bh5#
- 1...Rb7!
- threat
- 1.Rh5?
- threat
- 2.Bb4#
- 1...Rb7
- 2.Be4#
- 1...Rb8
- 2.Bg4#
- 1...Qf8!
- threat
- 1.Be4+?
- Keys
- 1.Re5!
- threat
- 2.Bb4#
- 1...Qf8
- 2.Bg4#
- 1...Rb7
- 2.Bh5#
- 1...Rb8
- 2.Re3#
- threat
- 1.Re5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- Tries
- Try
- B(D);CHECK
- Vars
- R(e);N_GUARD,P_SPINR(e)::QAR(E),XR(e)
- Refutation
- Q(g);XQ(E)
- Try
- B(D);CHECK
- Vars
- R(f);N_GUARD,P_SPINR(f)::QAR2(E),XR(f)
- Refutation
- Q(g);XQ(E)
- Try
- B(D);CHECK
- Vars
- R(f);N_GUARD,P_SPINR(f)::QAR2(E),XR(f)
- Refutation
- R(e);P_SPINR(e)
- Try
- R(F);CHECK,XP(b)
- Vars
- B(c);SBLOCK,XR(F)::B(G)
- Refutation
- K(a);P-FLIGHT,XR(F)
- Try
- R(F);N_PINP(b)
- Threat
- B(G)
- Vars
- Q(g);N_GUARD,P_PINB(G)::QAR(E)+B(D)
- R(f);N_GUARD::QAR(E)+B(D)
- Refutation
- R(e);
- Try
- R(F);N_PINP(b)
- Threat
- B(G)
- Vars
- R(e);N_GUARD::QAR(E)+B(D)
- R(f);N_GUARD::QAR(E)+B(D)
- Refutation
- Q(g);P_PINB(G)
- Try
- Actual
- R(F);N_PINP(b)
- Threat
- B(G)
- Vars
- Q(g);N_GUARD,P_PINB(G)::QAR(E)+B(D)
- R(e);N_GUARD::QAR(E)+B(D)
- R(f);N_GUARD::R(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).