MESON Chess Problem Database
Problem Display
PID: 121730 (n3N1nq/4ppb1/4k1bR/7Q/B3NP2/4r3/1p2P3/1K6 w - - 0 1)
Hellstrom, Ake
Source?, 1938
#2
8 + 10
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rd3
- 2.Sc5#
- 1...Sb6
- 2.Sc7#
- 1...Sc7
- 2.Sxc7#
- 1...Sf6
- 2.Qe5#
- 1...Rd3
- Tries
- 1.Qb5?
- threat
- 2.Qd7#
- 2.f5#
- 1...Qxh6
- 2.Qd7#
- 1...Bxh6
- 2.Qd7#
- 1...Sxh6
- 2.Qd7#
- 1...Be5
- 2.Qd7#
- 1...f5
- 2.Sg5#
- 2.Qc4#
- 1...Rd3
- 2.Sg5#
- 2.f5#
- 1...Rf3
- 2.Qd7#
- 1...Bf6
- 2.Qd7#
- 1...Sb6
- 2.Sc7#
- 2.f5#
- 1...Sf6
- 2.Qe5#
- 1...f6!
- threat
- 1.Qb5?
- Keys
- 1.Bc6!
- threat
- 2.Qd5#
- 1...f5
- 2.Sg5#
- 1...Rd3
- 2.Sc5#
- 1...Be5
- 2.f5#
- 1...Sb6
- 2.Sc7#
- 1...Sc7
- 2.Sxc7#
- 1...Sf6
- 2.Qe5#
- threat
- 1.Bc6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- R(b);N_PINS(D)::S(D)
- S(h);N_GUARD::S(H)
- S(h);N_GUARD::S(H),XS(h)
- S(i);N_SPINB(d),S_CUTB(g)::QAR1(F)
- Tries
- Try
- Q(F);
- Threat
- DUALS(2)
- Vars
- Q(j);N_SPINB(d),XR(G)::QAB1(F)
- B(g);N_SPINB(d),XR(G)::QAB1(F)
- S(i);N_SPINB(d),XR(G)::QAB1(F)
- B(g);::QAB1(F)
- R(b);::QAB1(F)
- B(g);N_SPINB(d)::QAB1(F)
- S(i);N_SPINB(d),S_CUTB(g)::QAR1(F)
- Refutation
- P(f);N_SPINB(d)
- Try
- Actual
- B(C);
- Threat
- QAB1(F)
- Vars
- P(f);N_PINS(D),SBLOCK::S(D)
- R(b);N_PINS(D)::S(D)
- B(g);SBLOCK::P(E)
- S(h);N_GUARD::S(H)
- S(h);N_GUARD::S(H),XS(h)
- S(i);N_SPINB(d),S_CUTB(g)::QAR1(F)
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).