MESON Chess Problem Database
Problem Display
PID: 272779 (8/6pB/P1pBp3/3kN3/2pbN3/8/P2R2K1/rQ6 w - - 0 1)
Retter, Yosef
Schach-Aktiv, 1995
#2
9 + 7
| 15601 | Albrecht-Leiss-Degener Collection | 2023 |
SOLUTION
- SOUND
- Sets
- 1...c3
- 2.Qb3#
- 1...c5
- 2.Qb7#
- 1...c3
- Tries
- 1.Sd3?
- threat
- 2.Sb4#
- 2.Sf4#
- 1...Rxb1
- 2.Sf4#
- 1...cxd3
- 2.Qb3#
- 1...c3
- 2.Qb3#
- 1...c5
- 2.Qb7#
- 1...g5
- 2.Sb4#
- 1...e5!
- threat
- 1.Sf3?
- threat
- 2.Rxd4#
- 1...c5
- 2.Qb7#
- 1...e5
- 2.Bg8#
- 1...Rxa2!
- threat
- 1.Sxc4?
- threat
- 2.Se3#
- 2.Sb6#
- 1...Kxc4
- 2.Qb3#
- 1...Rxb1
- 2.Se3#
- 1...e5
- 2.Bg8#
- 1...c5!
- threat
- 1.Sxc6?
- threat
- 2.Sb4#
- 2.Se7#
- 2.Qb5#
- 1...Kxc6
- 2.Qb7#
- 1...Rxb1
- 2.Se7#
- 1...c3
- 2.Qb5#
- 1...g6
- 2.Sb4#
- 2.Se7#
- 1...e5!
- threat
- 1.Sg6?
- threat
- 2.Sf4#
- 2.Se7#
- 1...c5
- 2.Se7#
- 2.Qb7#
- 1...e5
- 2.Bg8#
- 1...c3!
- threat
- 1.Sd7?
- threat
- 2.Sb6#
- 1...c5
- 2.Qb7#
- 1...e5
- 2.Bg8#
- 1...Rxb1!
- threat
- 1.Sf7?
- threat
- 2.Sc3#
- 1...c3
- 2.Qb3#
- 1...c5
- 2.Qb7#
- 1...e5!
- threat
- 1.Qb2?
- threat
- 2.Rxd4#
- 2.Qxd4#
- 1...c5
- 2.Qb7#
- 1...Rd1
- 2.Qxd4#
- 1...c3
- 2.Qb3#
- 1...Rg1+!
- threat
- 1.Qb4?
- threat
- 2.Sc3#
- 2.Qc5#
- 2.Qxc4#
- 1...g6
- 2.Sc3#
- 2.Sf6#
- 1...c5
- 2.Qxc5#
- 2.Qxc4#
- 2.Qb7#
- 1...Rc1
- 2.Qc5#
- 1...c3
- 2.Sxc3#
- 2.Rxd4#
- 2.Qc5#
- 2.Qb3#
- 2.Qc4#
- 2.Qxd4#
- 1...Rg1+!
- threat
- 1.Qb5+?
- 1...c5
- 2.Qxc4#
- 2.Qc6#
- 2.Qxc5#
- 2.Qb7#
- 1...cxb5!
- 1...c5
- 1.Qb6?
- threat
- 2.Rxd4#
- 2.Qxd4#
- 2.Qc5#
- 2.Qxc6#
- 1...Rxa2
- 2.Qxd4#
- 2.Qc5#
- 2.Qxc6#
- 1...g6
- 2.Rxd4#
- 2.Qxd4#
- 2.Qxc6#
- 1...c5
- 2.Sc3#
- 2.Qxc5#
- 2.Qc6#
- 2.Qb7#
- 1...Rd1
- 2.Qxd4#
- 2.Qc5#
- 2.Qxc6#
- 1...Rg1+!
- threat
- 1.Sd3?
- Keys
- 1.Sg4!
- threat
- 2.Se3#
- 1...c5
- 2.Qb7#
- 1...e5
- 2.Bg8#
- threat
- 1.Sg4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 1
- Sets
- P(b);OGATEB::QAB(A)
- P(e);OGATEB::QAB(A)
- Tries
- Try
- S(F);N_PINB(c)
- Threat
- DUALS(2)
- Vars
- R(a);XQ(A)::S(F)
- P(b);OGATEB,XS(F)::QAB(A)
- P(b);OGATEB::QAB(A)
- P(e);OGATEB::QAB(A)
- P(g);::S(F)
- Refutation
- P(f);
- Try
- S(F);
- Threat
- R1(C),XB(c)
- Vars
- P(e);OGATEB::QAB(A)
- P(f);OGATEB::B(I)
- Refutation
- R(a);P_PINR(C),XP(B)
- Try
- S(F);XP(b)
- Threat
- DUALS(2)
- Vars
- K(d);N_SPINB(c),OGATEB,S_FLIGHT,XS(F)::QAB1(A)
- R(a);XQ(A)::S(F)
- P(f);OGATEB::B(I)
- Refutation
- P(e);
- Try
- S(F);XP(e)
- Threat
- DUALS(3)
- Vars
- K(d);N_SPINB(c),OGATEB,S_FLIGHT,XS(F)::QAB1(A)
- R(a);XQ(A)::S(F)
- P(b);::QAR2(A)
- Refutation
- P(f);
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- P(f);OGATEB::B(I)
- Refutation
- P(b);
- Try
- S(F);
- Threat
- S(F)
- Vars
- P(e);OGATEB::QAB(A)
- P(f);OGATEB::B(I)
- Refutation
- R(a);XQ(A)
- Try
- S(F);
- Threat
- S(E)
- Vars
- P(b);OGATEB::QAB(A)
- P(e);OGATEB::QAB(A)
- Refutation
- P(f);
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- P(e);OGATEB::QAB(A)
- R(a);::QAR1(A),XB(c)
- P(b);OGATEB::QAB(A)
- Refutation
- R(a);CHECK
- Try
- Q(A);
- Threat
- DUALS(3)
- Vars
- R(a);::QAR1(A)
- Refutation
- R(a);CHECK
- Try
- Q(A);CHECK
- Refutation
- P(e);XQ(A)
- Try
- Q(A);
- Threat
- DUALS(4)
- Refutation
- R(a);CHECK
- Try
- Actual
- S(F);
- Threat
- S(F)
- Vars
- P(e);OGATEB::QAB(A)
- P(f);OGATEB::B(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).