MESON Chess Problem Database
Problem Display
PID: 96713 (K1NN4/1RpR4/8/b1k1p3/8/1PPn1nq1/4Q3/4rb1B w - - 0 1)
Steiner, Paul
US Problem Bulletin, 1990
#2
9 + 9
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Sc1
- 2.Rb5#
- 1...Sb2
- 2.Rb5#
- 1...Sf2
- 2.Rb5#
- 1...Sb4
- 2.Rb5#
- 1...Sf4
- 2.Rb5#
- 1...Sg1
- 2.Se6#
- 2.Rd5#
- 1...Sd2
- 2.Se6#
- 2.Rd5#
- 1...Sh2
- 2.Se6#
- 2.Rd5#
- 1...Sd4
- 2.Rd5#
- 1...Sh4
- 2.Se6#
- 2.Rd5#
- 1...Sg5
- 2.Rd5#
- 1...c6
- 2.Se6#
- 1...Sc1
- Tries
- 1.Se7?
- threat
- 2.Se6#
- 2.Rd5#
- 1...Bb6
- 2.Rd5#
- 1...Qh3
- 2.Rd5#
- 1...Qg4
- 2.Rd5#
- 1...Qg6
- 2.Rd5#
- 1...Bh3
- 2.Rd5#
- 1...Sb4
- 2.Se6#
- 2.Rb5#
- 1...Sf4
- 2.Rb5#
- 1...Sd4
- 2.Rd5#
- 1...Sg5
- 2.Rd5#
- 1...c6
- 2.Se6#
- 1...Qg8!
- threat
- 1.Qxd3?
- threat
- 2.Rb5#
- 2.Rd5#
- 2.Qd5#
- 1...Qg8
- 2.Rb5#
- 1...Rd1
- 2.Rb5#
- 2.Rd5#
- 1...Bb6
- 2.Rd5#
- 2.Qd5#
- 2.b4#
- 1...Sd4
- 2.Rd5#
- 1...c6
- 2.Se6#
- 2.Qd6#
- 1...Bxd3!
- threat
- 1.Qe3+?
- 1...Sd4
- 2.Se6#
- 2.Rd5#
- 1...Rxe3!
- 1...Sd4
- 1.Qe4?
- threat
- 2.Se6#
- 2.Rd5#
- 2.Qd5#
- 2.Qc6#
- 2.Qc4#
- 1...Bb6
- 2.Rd5#
- 2.Qd5#
- 2.Qc6#
- 2.Qc4#
- 1...Qg8
- 2.Qc6#
- 1...Qf4
- 2.Se6#
- 2.Rd5#
- 2.Qd5#
- 2.Qc6#
- 1...Qh4
- 2.Se6#
- 2.Rd5#
- 2.Qd5#
- 2.Qc6#
- 1...Qh3
- 2.Rd5#
- 2.Qd5#
- 2.Qc6#
- 2.Qc4#
- 1...Qg4
- 2.Rd5#
- 2.Qd5#
- 2.Qc6#
- 1...Qg6
- 2.Rd5#
- 2.Qd5#
- 2.Qc4#
- 1...Bh3
- 2.Rd5#
- 2.Qd5#
- 2.Qc6#
- 2.Qc4#
- 1...Sc1
- 2.Se6#
- 2.Rd5#
- 2.Qd5#
- 2.Qc6#
- 1...Sb2
- 2.Se6#
- 2.Rd5#
- 2.Qd5#
- 2.Qc6#
- 1...Sf2
- 2.Se6#
- 2.Rd5#
- 2.Qd5#
- 2.Qc6#
- 1...Sb4
- 2.Se6#
- 1...Sf4
- 2.Qc6#
- 1...Sd2
- 2.Se6#
- 2.Rd5#
- 2.Qd5#
- 2.Qc6#
- 1...Sd4
- 2.Rd5#
- 2.Qd5#
- 1...Sg5
- 2.Rd5#
- 2.Qd5#
- 2.Qc6#
- 2.Qc4#
- 1...c6
- 2.Se6#
- 2.Qxc6#
- 2.Qc4#
- 1...Rxe4!
- threat
- 1.c4?
- threat
- 2.Rb5#
- 2.Rd5#
- 1...Qg8
- 2.Rb5#
- 1...Sb4
- 2.Rb5#
- 1...Sf4
- 2.Rb5#
- 1...Sd4
- 2.Rd5#
- 1...c6
- 2.Se6#
- 1...Bb6!
- threat
- 1.Se7?
- Keys
- 1.Sa7!
- threat
- 2.Se6#
- 2.Rb5#
- 1...Qh3
- 2.Rb5#
- 1...Qg4
- 2.Rb5#
- 1...Qg6
- 2.Rb5#
- 1...Qg8
- 2.Rb5#
- 1...Bh3
- 2.Rb5#
- 1...Bb6
- 2.Se6#
- 1...Sf4
- 2.Rb5#
- 1...Sd4
- 2.Rd5#
- 1...Sg5
- 2.Rb5#
- 2.Rd5#
- 1...c6
- 2.Se6#
- threat
- 1.Sa7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 5
- Sets
- S(c);::R1(E)
- S(d);::R1(F)
- P(i);SBLOCK::S(I)
- Tries
- Try
- S(H);
- Threat
- DUALS(2)
- Vars
- B(f);::R1(F)
- Q(e);::R1(F)
- B(b);::R1(F)
- S(c);::R1(E)
- S(d);::R1(F)
- P(i);::S(I)
- Refutation
- Q(e);P_PINS(I)
- Try
- Q(B);XS(c)
- Threat
- DUALS(3)
- Vars
- Q(e);::R1(E)
- S(d);::R1(F)
- Refutation
- B(b);XQ(B)
- Try
- Q(B);CHECK
- Refutation
- R(a);XQ(B)
- Try
- Q(B);
- Threat
- DUALS(5)
- Vars
- Q(e);::QAR1(B)
- S(c);::S(I)
- S(c);::QAR1(B)
- Refutation
- R(a);XQ(B)
- Try
- P(D);
- Threat
- DUALS(2)
- Vars
- Q(e);::R1(E)
- S(c);::R1(E)
- S(d);::R1(F)
- P(i);SBLOCK::S(I)
- Refutation
- B(f);
- Try
- Actual
- S(H);
- Threat
- DUALS(2)
- Vars
- Q(e);::R1(E)
- Q(e);P_PINS(I)::R1(E)
- B(b);::R1(E)
- B(f);::S(I)
- S(c);::R1(E)
- S(d);::R1(F)
- P(i);::S(I)
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).