MESON Chess Problem Database
Problem Display
PID: 47171 (8/2N3nB/2nP1kPp/2Q1b3/8/K1p3N1/6p1/2B1R3 w - - 0 1)
Joensson, G
Problemschack, 1939
#2
9 + 7
| 4872 | Themes-64 | 1956 |
SOLUTION
- SOUND
- Sets
- 1...Bd4
- 2.Se4#
- 2.Sd5#
- 1...Bf4
- 2.Se4#
- 1...Bxd6
- 2.Sd5#
- 1...Sb4
- 2.Qxe5#
- 1...Sd4
- 2.Qxe5#
- 1...Sa5
- 2.Qxe5#
- 1...Sa7
- 2.Qxe5#
- 1...Se7
- 2.Qxe5#
- 1...Sb8
- 2.Qxe5#
- 1...Sd8
- 2.Qxe5#
- 1...Sf5
- 2.Sh5#
- 1...Se6
- 2.Se8#
- 1...Bd4
- Tries
- 1.Rxe5?
- threat
- 2.Se4#
- 1...Sf5
- 2.Sh5#
- 2.Se8#
- 1...Sh5
- 2.Sxh5#
- 2.Se8#
- 1...Se6
- 2.Sh5#
- 2.Se8#
- 1...Se8
- 2.Sh5#
- 2.Sxe8#
- 1...Sxe5!
- threat
- 1.Qf2+?
- 1...Sf5
- 2.Sh5#
- 1...Bf4!
- 1...Sf5
- 1.Qd5?
- threat
- 2.Qf7#
- 1...Se6
- 2.Se8#
- 1...Bf4
- 2.Se4#
- 1...Sd8
- 2.Qxe5#
- 1...Bxd6+!
- threat
- 1.Rxe5?
- Keys
- 1.d7!
- threat
- 2.Qf8#
- 1...Se6
- 2.Se8#
- 1...Bf4
- 2.Se4#
- 1...Bd6
- 2.Sd5#
- 1...Se7
- 2.Qxe5#
- 1...Sd8
- 2.Qxe5#
- threat
- 1.d7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 6
- Sets
- B(c);::S(D)
- B(c);P_PINQ(E),XP(F)::S(H)
- S(d);N_GUARD::QAB1(E),XB(c)
- S(g);N_GUARD,SBLOCK::S(D)
- S(g);N_GUARD,SBLOCK::S(H)
- Tries
- Try
- R(B);XB(c)
- Threat
- S(D)
- Refutation
- S(d);XR(B)
- Try
- Q(E);CHECK
- Vars
- S(g);P_SPINS(g)::S(D)
- Refutation
- B(c);P_SPINB(c)
- Try
- Q(E);
- Threat
- QAR1(E)
- Vars
- S(g);N_GUARD::S(H)
- B(c);::S(D)
- S(d);N_GUARD::QAB1(E),XB(c)
- Refutation
- B(c);CHECK,XP(F)
- Try
- Actual
- P(F);
- Threat
- QAR2(E)
- Vars
- S(g);N_GUARD,SBLOCK::S(H)
- B(c);::S(D)
- B(c);P_PINQ(E)::S(H)
- S(d);N_GUARD::QAB1(E),XB(c)
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).