MESON Chess Problem Database
Problem Display
PID: 184998 (4n3/8/1QBpp1Kp/RNpbk3/R3P3/3P2P1/8/8 w - - 0 1)
Servais, Albert
Bulletin Ouvrier des Echecs, 1948
#2
9 + 7
| 15601 | Albrecht-Leiss-Degener Collection | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Bxe4+
- 2.Rxe4#
- 1...c4
- 2.Qd4#
- 1...Bxe4+
- Tries
- 1.Sd4?
- threat
- 2.Sf3#
- 1...cxd4
- 2.Qxd4#
- 1...Bxe4+!
- threat
- 1.Sa7?
- threat
- 2.Qb2#
- 1...Bxe4+
- 2.Rxe4#
- 1...Bb3
- 2.d4#
- 1...c4!
- threat
- 1.Sc7?
- threat
- 2.Qb2#
- 1...Bxe4+
- 2.Rxe4#
- 1...Bb3
- 2.d4#
- 1...c4!
- threat
- 1.d4+?
- 1...cxd4
- 2.Qxd4#
- 1...Kxe4!
- 1...cxd4
- 1.Sd4?
- Keys
- 1.Sa3!
- threat
- 2.Qb2#
- 1...Bxe4+
- 2.Rxe4#
- 1...Bb3
- 2.d4#
- 1...c4
- 2.Sxc4#
- threat
- 1.Sa3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- B(b);CHECK,OGATE,XP(D)::R1(C),XB(b)
- P(a);OGATE::QAB1(G)
- Tries
- Try
- S(F);
- Threat
- S(F)
- Vars
- P(a);OGATE,P_SPINB(b),XS(F)::QAB1(G),XP(a)
- Refutation
- B(b);CHECK,P_SPINP(a),XP(D)
- Try
- S(F);
- Threat
- QAB(G)
- Vars
- B(b);CHECK,OGATE,P_SPINP(a),XP(D)::R1(C),XB(b)
- B(b);P_SPINP(a)::P(A)
- Refutation
- P(a);P_SPINB(b)
- Try
- S(F);
- Threat
- QAB(G)
- Vars
- B(b);CHECK,OGATE,P_SPINP(a),XP(D)::R1(C),XB(b)
- B(b);P_SPINP(a)::P(A)
- Refutation
- P(a);P_SPINB(b)
- Try
- P(A);CHECK
- Vars
- P(a);OGATE,XP(A)::QAB1(G),XP(a)
- Refutation
- K(c);P-FLIGHT,P_SPINB(b),XP(D)
- Try
- Actual
- S(F);
- Threat
- QAB(G)
- Vars
- B(b);CHECK,OGATE,P_SPINP(a),XP(D)::R1(C),XB(b)
- B(b);P_SPINP(a)::P(A)
- P(a);P_SPINB(b)::S(F),XP(a)
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).