MESON Chess Problem Database
Problem Display
PID: 259571 (5b1B/p7/3pp3/R3p3/3k1p1Q/1P1ppP2/1K4n1/1bN1RN2 w - - 0 1)
Cheylan, Yves
Gazeta Czestochowska, 1976
(First published on Tue Sep 7 1976)
#2
9 + 11
| 15601 | Albrecht-Leiss-Degener Collection | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Sxe1
- 2.Qxf4#
- 1...Sxe1
- Tries
- 1.Rd1?
- threat
- 2.Se2#
- 1...e2
- 2.Sxe2#
- 1...d2!
- threat
- 1.Qe7?
- threat
- 2.Qxa7#
- 1...d5
- 2.Ra4#
- 1...a6
- 2.Qa7#
- 1...Bxe7!
- threat
- 1.Qd8?
- threat
- 2.Bxe5#
- 1...Bg7
- 2.Qxd6#
- 1...d5!
- threat
- 1.Qh7?
- threat
- 2.Qe4#
- 2.Qxa7#
- 1...Be7
- 2.Qe4#
- 1...Bg7
- 2.Qe4#
- 1...d2
- 2.Se2#
- 2.Qxa7#
- 1...a6
- 2.Qe4#
- 2.Qa7#
- 1...d5!
- threat
- 1.Rd1?
- Keys
- 1.Rxe3!
- threat
- 2.Re4#
- 1...Sxe3
- 2.Qxf4#
- 1...d2
- 2.Se2#
- 1...d5
- 2.Bxe5#
- threat
- 1.Rxe3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 1
- Sets
- S(b);N_GUARD,XR(B)::QAR2(G),XP(f)
- Tries
- Try
- R(B);N_PINP(f),P_PINP(c)
- Threat
- S(A)
- Vars
- P(d);::S(A),XP(d)
- Refutation
- P(c);
- Try
- Q(G);N_PINP(f),P_PINP(g)
- Threat
- QAB(G),XP(j)
- Vars
- P(h);SBLOCK::R(H)
- P(j);::QAB(G)
- Refutation
- B(k);XQ(G)
- Try
- Q(G);N_PINP(f),P_PINP(g)
- Threat
- B(I),XP(g)
- Vars
- B(k);N_GUARD,N_SPINP(g),P_SPINP(h)::QAR2(G),XP(h)
- Refutation
- P(h);N_SPINP(g),P_SPINP(h)
- Try
- Q(G);N_PINP(f),P_PINP(g)
- Threat
- DUALS(2)
- Vars
- B(k);::QAR1(G)
- B(k);N_SPINP(g)::QAR1(G)
- Refutation
- P(h);
- Try
- Actual
- R(B);XP(d)
- Threat
- R1(B)
- Vars
- S(b);N_GUARD,XR(B)::QAR2(G),XP(f)
- P(c);N_GUARD::S(A)
- P(h);N_GUARD::B(I),XP(g)
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).