MESON Chess Problem Database
Problem Display
PID: 233752 (4R3/5p2/1pp2k1K/5b2/8/6n1/4RQ2/b7 w - - 0 1)
Popp, Willy
Freie Presse, 1968
#2
4 + 7
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Bd4
- 2.Qxd4#
- 1...Sf1
- 2.Qh4#
- 1...Sh1
- 2.Qh4#
- 1...Sxe2
- 2.Qh4#
- 1...Sh5
- 2.Qh4#
- 1...Bd4
- Tries
- 1.Qe3?
- threat
- 2.Qg5#
- 2.Qe7#
- 1...Bb1
- 2.Qg5#
- 1...Bc2
- 2.Qg5#
- 1...Bd3
- 2.Qg5#
- 1...Bh3
- 2.Qg5#
- 1...Be4
- 2.Qg5#
- 1...Bg4
- 2.Qg5#
- 1...Be6
- 2.Qg5#
- 1...Bg6
- 2.Qg5#
- 1...Bd7
- 2.Qg5#
- 1...Bh7
- 2.Qg5#
- 1...Bc8
- 2.Qg5#
- 1...Be5
- 2.Qg5#
- 2.Qxe5#
- 1...Se4!
- threat
- 1.Qxg3?
- threat
- 2.Qh4#
- 2.Qg5#
- 2.Qg7#
- 1...Bb1
- 2.Qg5#
- 1...Bc2
- 2.Qg5#
- 1...Bd3
- 2.Qg5#
- 1...Bh3
- 2.Qg5#
- 1...Be4
- 2.Qg5#
- 1...Be6
- 2.Qg5#
- 1...Bg6
- 2.Qg5#
- 1...Bd7
- 2.Qg5#
- 1...Bh7
- 2.Qg5#
- 1...Bc8
- 2.Qg5#
- 1...Bg4!
- threat
- 1.Qc5?
- threat
- 2.Qe7#
- 1...Bb1
- 2.Qg5#
- 1...Bc2
- 2.Qg5#
- 1...Bd3
- 2.Qg5#
- 1...Bh3
- 2.Qg5#
- 1...Be4
- 2.Qg5#
- 1...Bg4
- 2.Qg5#
- 1...Be6
- 2.Qg5#
- 1...Bg6
- 2.Qg5#
- 1...Bd7
- 2.Qg5#
- 1...Bh7
- 2.Qg5#
- 1...Bc8
- 2.Qg5#
- 1...bxc5!
- threat
- 1.Qe3?
- Keys
- 1.Rb2!
- threat
- 2.Qd4#
- 1...Bxb2
- 2.Qxb2#
- 1...Se2
- 2.Qh4#
- 1...c5
- 2.Rxb6#
- threat
- 1.Rb2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 4
- Sets
- B(a);N_GUARD::QAB(B),XB(a)
- S(b);OGATE::QAB(B)
- S(b);OGATE,XR(A)::QAB(B)
- Tries
- Try
- Q(B);N_PINB(c)
- Threat
- DUALS(2)
- Vars
- B(c);::QAB1(B)
- Refutation
- S(b);
- Try
- Q(B);N_PINB(c),XS(b)
- Threat
- DUALS(3)
- Vars
- B(c);::QAB1(B)
- Refutation
- B(c);
- Try
- Q(B);N_PINB(c)
- Threat
- QAB1(B)
- Vars
- B(c);OGATE::QAB1(B)
- Refutation
- P(d);XQ(B)
- Try
- Actual
- R(A);
- Threat
- QAB(B)
- Vars
- B(a);OGATE,XR(A)::QAB(B),XB(a)
- S(b);OGATE::QAB(B)
- P(e);OGATEB::R(A),XP(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).