MESON Chess Problem Database
Problem Display
PID: 222225 (K1b5/1pRB1p2/2N5/Bpkp1N2/1npnp3/6Q1/7q/8 w - - 0 1)
Hermanson, Halvar
Suomen Shakki, 1959
#2
7 + 11
| 15148 | Sadier Collection | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Qg1
- 2.Qd6#
- 1...Qh1
- 2.Qd6#
- 1...Qa2
- 2.Qd6#
- 1...Qb2
- 2.Qd6#
- 1...Qc2
- 2.Qd6#
- 1...Qd2
- 2.Qd6#
- 1...Qe2
- 2.Qd6#
- 1...Qf2
- 2.Qd6#
- 1...Qg2
- 2.Qd6#
- 1...Qh3
- 2.Qd6#
- 1...Qh4
- 2.Qd6#
- 1...Qh5
- 2.Qd6#
- 1...Qh7
- 2.Qd6#
- 1...Qh8
- 2.Qd6#
- 1...Sa2
- 2.Scxd4#
- 1...Sbc2
- 2.Scxd4#
- 1...Sd3
- 2.Scxd4#
- 1...Sdc2
- 2.Sxb4#
- 1...Se2
- 2.Sxb4#
- 1...Sb3
- 2.Sxb4#
- 1...Sf3
- 2.Sxb4#
- 1...c3
- 2.Qxc3#
- 1...b6
- 2.Bxb4#
- 1...Qg1
- Tries
- 1.Qe3?
- threat
- 2.Qxd4#
- 1...Qg1
- 2.Sxb4#
- 1...Qb2
- 2.Sxb4#
- 1...Qd2
- 2.Sxb4#
- 1...Qf2
- 2.Sxb4#
- 1...Qh8
- 2.Sxb4#
- 1...Sc2
- 2.Se5#
- 1...Qe5!
- threat
- 1.Qe3?
- Keys
- 1.Qa3!
- threat
- 2.Qxb4#
- 1...Qb2
- 2.Scxd4#
- 1...Qd2
- 2.Scxd4#
- 1...Sc2
- 2.Se5#
- threat
- 1.Qa3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 3
- ADDED MATES = 0
- REMOVED MATES = 20
- Sets
- Q(a);N_GUARD::QAB1(A)
- Q(a);N_GUARD,P_PINB(B)::QAB1(A)
- S(b);N_GUARD::R(E)+S(D),XS(d)
- S(d);N_GUARD::R(E)+S(D),XS(b)
- P(c);OGATEB::QAR2(A),XP(c)
- P(i);SBLOCK::B(B),XS(b)
- Tries
- Try
- Q(A);P_PINS(d)
- Threat
- QAB1(A),XS(d)
- Vars
- Q(a);N_GUARD::R(E)+S(D),XS(b)
- S(b);N_GUARD::R(E)+S(D)
- Refutation
- Q(a);
- Try
- Actual
- Q(A);P_PINS(b)
- Threat
- QAB1(A),XS(b)
- Vars
- Q(a);N_GUARD::R(E)+S(D),XS(d)
- S(d);N_GUARD::R(E)+S(D)
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).