MESON Chess Problem Database
Problem Display
PID: 239516 (R4Q2/8/2np4/1k2NB1R/1pn5/1N5K/8/6B1 w - - 0 1)
Hermanson, Halvar
Magyar Sakkelet, 1963
#2
8 + 5
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...S4xe5
- 2.Bd3#
- 1...S6xe5
- 2.Bd7#
- 1...dxe5
- 2.Qc5#
- 1...d5
- 2.Qc5#
- 1...S4xe5
- Tries
- 1.Bd3?
- threat
- 2.Bxc4#
- 1...Sxe5
- 2.Qe8#
- 1...dxe5
- 2.Qc5#
- 1...Sd4
- 2.Qb8#
- 1...Sa5
- 2.Rxa5#
- 1...d5
- 2.Qc5#
- 1...Sa7!
- threat
- 1.Qb8+?
- 1...Sb6
- 2.Bd3#
- 2.Qxb6#
- 1...Sxb8!
- 1...Sb6
- 1.Qe8?
- threat
- 2.Qxc6#
- 1...Sxe5
- 2.Bd3#
- 1...Sa5
- 2.Rxa5#
- 1...dxe5!
- threat
- 1.Bd3?
- Keys
- 1.Bd7!
- threat
- 2.Bxc6#
- 1...Sxe5
- 2.Qf1#
- 1...dxe5
- 2.Qc5#
- 1...Se3
- 2.Qb8#
- 1...Sa5
- 2.Rxa5#
- threat
- 1.Bd7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 2
- REMOVED MATES = 2
- Sets
- S(b);OGATEB,XS(D)::B(E)
- S(d);OGATEB,XS(D)::B(E)
- P(e);OGATE,XS(D)::QAR1(H)
- P(e);OGATE::QAR1(H)
- Tries
- Try
- B(E);P_PINS(b)
- Threat
- B(E),XS(b)
- Vars
- S(d);OGATEB,XS(D)::QAB(H)
- P(e);OGATE,P_SPINP(e),XS(D)::QAR1(H)
- S(d);N_GUARD::QAR(H)
- S(d);N_GUARD::R1(G),XS(d)
- P(e);OGATE::QAR1(H)
- Refutation
- S(d);
- Try
- Q(H);CHECK
- Refutation
- S(d);XQ(H)
- Try
- Q(H);P_PINS(d)
- Threat
- QAB1(H),XS(d)
- Vars
- S(b);OGATEB,XS(D)::B(E)
- S(b);N_GUARD::R1(G),XS(b)
- Refutation
- P(e);XS(D)
- Try
- Actual
- B(E);P_PINS(d)
- Threat
- B(E),XS(d)
- Vars
- S(b);N_SPINS(d),OGATEB,P_SPINS(b),XS(D)::QAB(H)
- P(e);OGATE,P_SPINP(e),XS(D)::QAR1(H)
- S(b);N_GUARD::QAR(H)
- S(b);N_GUARD::R1(G),XS(b)
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).