MESON Chess Problem Database
Problem Display
PID: 243914 (1B5b/4N1QB/6P1/3R2pK/1rp1k3/5n1R/4NP2/q4n2 w - - 0 1)
Fleck, Ferenc
Schach, 1952
#2
10 + 8
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Qc3
- 2.Sxc3#
- 1...Qb1
- 2.Sc3#
- 1...Qd1
- 2.Sc3#
- 1...Qa2
- 2.Sc3#
- 1...Qa4
- 2.Sc3#
- 1...Qa5
- 2.Sc3#
- 1...Qa6
- 2.Sc3#
- 1...Qa7
- 2.Sc3#
- 1...Qa8
- 2.Sc3#
- 1...Rb2
- 2.Sc3#
- 1...S1d2
- 2.Sg3#
- 1...S1h2
- 2.Sg3#
- 1...Se3
- 2.Sg3#
- 1...Sg3+
- 2.Sxg3#
- 1...Sd4
- 2.Re5#
- 1...Qc3
- Tries
- 1.Qc3?
- threat
- 2.Qc2#
- 2.Qxf3#
- 2.g7#
- 1...Sg3+
- 2.Sxg3#
- 1...Qxc3
- 2.g7#
- 1...Bxc3
- 2.g7#
- 1...Qb2
- 2.Qxf3#
- 2.g7#
- 1...Qb1
- 2.Qxf3#
- 2.g7#
- 1...Qc1
- 2.Qxf3#
- 2.g7#
- 1...Qd1
- 2.Qxf3#
- 2.g7#
- 1...Qa2
- 2.Qxf3#
- 2.g7#
- 1...Qa3
- 2.g7#
- 1...Qa4
- 2.Qxf3#
- 2.g7#
- 1...Qa6
- 2.Qc2#
- 2.Qxf3#
- 1...Rb2
- 2.Qxf3#
- 2.g7#
- 1...Rb3
- 2.g7#
- 1...Rb6
- 2.Qc2#
- 2.Qxf3#
- 1...Bg7
- 2.Qc2#
- 2.Qxf3#
- 1...S1d2
- 2.Sg3#
- 2.Qc2#
- 2.Qe3#
- 2.g7#
- 1...S1h2
- 2.Sg3#
- 2.Qc2#
- 2.Qe3#
- 2.g7#
- 1...Se3
- 2.Sg3#
- 2.Qxe3#
- 1...Se1
- 2.g7#
- 1...Sg1
- 2.Qc2#
- 2.g7#
- 1...S3d2
- 2.Qc2#
- 2.g7#
- 1...S3h2
- 2.Qc2#
- 2.g7#
- 1...Sh4
- 2.Qc2#
- 1...Se5
- 2.Rd4#
- 1...g4
- 2.Qc2#
- 2.g7#
- 1...Sd4!
- threat
- 1.Qd4+?
- 1...Qxd4
- 2.g7#
- 1...Bxd4
- 2.g7#
- 1...Sxd4!
- 1...Qxd4
- 1.Qc3?
- Keys
- 1.Qb2!
- threat
- 2.Qc2#
- 2.g7#
- 1...Sg3+
- 2.Sxg3#
- 1...Qxb2
- 2.g7#
- 1...Rxb2
- 2.g7#
- 1...Bxb2
- 2.g7#
- 1...Qb1
- 2.g7#
- 1...Qc1
- 2.g7#
- 1...Qd1
- 2.g7#
- 1...Qa2
- 2.g7#
- 1...Qa3
- 2.g7#
- 1...Qa4
- 2.g7#
- 1...Qa6
- 2.Qc2#
- 1...Rb3
- 2.g7#
- 1...Rb6
- 2.Qc2#
- 1...Bg7
- 2.Qc2#
- 1...Se3
- 2.Sg3#
- 1...Se1
- 2.g7#
- 1...Sd4
- 2.Sc3#
- 1...Sh4
- 2.Qc2#
- 1...Se5
- 2.Rd4#
- threat
- 1.Qb2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 7
- ADDED MATES = 10
- REMOVED MATES = 6
- Sets
- Q(a);N_GUARD::S(A),XQ(a)
- Q(a);N_GUARD::S(A)
- R(d);S_CUTQ(a)::S(A)
- S(b);N_GUARD::S(A)
- S(b);CHECK,N_GUARD::S(A),XS(b)
- S(c);N_GUARD,S_CUTQ(a)::R1(D)
- Tries
- Try
- Q(H);
- Threat
- DUALS(3)
- Vars
- S(b);CHECK,N_GUARD::S(A),XS(b)
- Q(a);XQ(H)::B(I)+P(F)
- B(h);XQ(H)::B(I)+P(F)
- Q(a);::B(I)+P(F)
- R(d);::B(I)+P(F)
- S(c);::B(I)+P(F)
- S(c);::QAB(H)
- S(c);N_GUARD,S_CUTB(h)::R1(D)
- Refutation
- S(c);
- Try
- Q(H);CHECK
- Vars
- Q(a);XQ(H)::B(I)+P(F)
- B(h);XQ(H)::B(I)+P(F)
- Refutation
- S(c);XQ(H)
- Try
- Actual
- Q(H);
- Threat
- DUALS(2)
- Vars
- S(b);CHECK,N_GUARD::S(A),XS(b)
- Q(a);XQ(H)::B(I)+P(F)
- R(d);XQ(H)::B(I)+P(F)
- B(h);XQ(H)::B(I)+P(F)
- Q(a);::B(I)+P(F)
- Q(a);::QAB(H)
- R(d);::B(I)+P(F)
- R(d);::QAB(H)
- B(h);::QAB(H)
- S(b);N_GUARD::S(A)
- S(c);::B(I)+P(F)
- S(c);S_CUTB(h)::S(A)
- S(c);::QAB(H)
- S(c);N_GUARD,S_CUTB(h)::R1(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).