MESON Chess Problem Database
Problem Display
PID: 239187 (n1R5/1K6/1p1P1P2/3k1P2/1P2NB2/1pPN1P1b/4Q2q/5n2 w - - 0 1)
Hoffmann, Fritz
Sachove umeni (Ceskoslovensky sach), 1971
#2
12 + 7
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...b5
- 2.Rc5#
- 1...b5
- Tries
- 1.Sc1?
- threat
- 2.Qd3#
- 2.Qc4#
- 2.Qb5#
- 1...Qxf4
- 2.Qb5#
- 1...Bxf5
- 2.Qc4#
- 1...Qg1
- 2.Qc4#
- 1...Qf2
- 2.Qc4#
- 1...Sd2
- 2.Qd3#
- 2.Qb5#
- 1...Se3
- 2.Qd3#
- 2.Qb5#
- 1...Sc7
- 2.Qd3#
- 1...b5
- 2.Rc5#
- 2.Qd3#
- 2.Qxb5#
- 1...Qxe2!
- threat
- 1.Se1?
- threat
- 2.Qd3#
- 2.Qc4#
- 2.Qb5#
- 1...Qxf4
- 2.Qb5#
- 1...Bxf5
- 2.Qc4#
- 1...Qg1
- 2.Qc4#
- 1...Qf2
- 2.Qc4#
- 1...Sd2
- 2.Qd3#
- 2.Qb5#
- 1...Se3
- 2.Qd3#
- 2.Qb5#
- 1...Sc7
- 2.Qd3#
- 1...b5
- 2.Rc5#
- 2.Qd3#
- 2.Qxb5#
- 1...Qxe2!
- threat
- 1.Sb2?
- threat
- 2.Qd3#
- 2.Qc4#
- 2.Qb5#
- 1...Qxf4
- 2.Qb5#
- 1...Bxf5
- 2.Qc4#
- 1...Qg1
- 2.Qc4#
- 1...Qf2
- 2.Qc4#
- 1...Sd2
- 2.Qd3#
- 2.Qb5#
- 1...Se3
- 2.Qd3#
- 2.Qb5#
- 1...Sc7
- 2.Qd3#
- 2.Qc4#
- 1...b5
- 2.Rc5#
- 2.Qd3#
- 2.Qxb5#
- 1...Qxe2!
- threat
- 1.Se5?
- threat
- 2.Qd3#
- 2.Qc4#
- 2.Qb5#
- 1...Qxf4
- 2.Qb5#
- 1...Bxf5
- 2.Qc4#
- 1...Qg1
- 2.Qc4#
- 1...Qf2
- 2.Qc4#
- 1...Sd2
- 2.Qd3#
- 2.Qb5#
- 1...Se3
- 2.Qd3#
- 2.Qb5#
- 1...Sc7
- 2.Qd3#
- 2.Qc4#
- 1...b5
- 2.Rc5#
- 2.Qd3#
- 2.Qxb5#
- 1...Qxe2!
- threat
- 1.Sef2?
- threat
- 2.Qe4#
- 2.Qe5#
- 2.Qe6#
- 1...Qxf4
- 2.Qe6#
- 1...Bxf5
- 2.Qe5#
- 1...Sc7
- 2.Qe4#
- 1...Sd2
- 2.Qe5#
- 2.Qe6#
- 1...Sg3
- 2.Qe5#
- 2.Qe6#
- 1...Se3!
- threat
- 1.Sc1?
- Keys
- 1.Sdf2!
- threat
- 2.Qd3#
- 2.Qc4#
- 2.Qb5#
- 1...Qxf4
- 2.Qb5#
- 1...Qxf2
- 2.Qc4#
- 1...Bxf5
- 2.Qc4#
- 1...Sd2
- 2.Qd3#
- 2.Qb5#
- 2.Qxd2#
- 1...Se3
- 2.Qd3#
- 2.Qb5#
- 2.Qd2#
- 1...Sc7
- 2.Qd3#
- 1...b5
- 2.Rc5#
- 2.Qd3#
- 2.Qxb5#
- threat
- 1.Sdf2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 1
- Sets
- P(f);N_GUARD::R1(L)
- Tries
- Try
- S(C);
- Threat
- DUALS(3)
- Vars
- Q(b);XB(G)::QAR2(A)
- B(d);XP(H)::QAB1(A)
- Q(b);::QAB1(A)
- S(g);::QAR2(A)
- Refutation
- Q(b);XQ(A)
- Try
- S(C);
- Threat
- DUALS(3)
- Vars
- Q(b);XB(G)::QAR2(A)
- B(d);XP(H)::QAB1(A)
- Q(b);::QAB1(A)
- S(g);::QAR2(A)
- Refutation
- Q(b);XQ(A)
- Try
- S(C);
- Threat
- DUALS(3)
- Vars
- Q(b);XB(G)::QAR2(A)
- B(d);XP(H)::QAB1(A)
- Q(b);::QAB1(A)
- Refutation
- Q(b);XQ(A)
- Try
- S(C);
- Threat
- DUALS(3)
- Vars
- Q(b);XB(G)::QAR2(A)
- B(d);XP(H)::QAB1(A)
- Q(b);::QAB1(A)
- Refutation
- Q(b);XQ(A)
- Try
- S(F);
- Threat
- DUALS(3)
- Vars
- Q(b);XB(G)::QAB1(A)
- B(d);XP(H)::QAR1(A)
- S(g);::QAB1(A)
- Refutation
- S(a);
- Try
- Actual
- S(C);
- Threat
- DUALS(3)
- Vars
- Q(b);XB(G)::QAR2(A)
- Q(b);XS(C)::QAB1(A)
- B(d);XP(H)::QAB1(A)
- S(g);::QAR2(A)
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).