MESON Chess Problem Database
Problem Display
PID: 258763 (4n2N/pQ2KP2/8/r3kB2/4p1r1/3b2p1/3NP3/5RB1 w - - 0 1)
Oltean, Gligor
1st Comm., Buletin Problemistic, 1986
#2
9 + 8
| 15601 | Albrecht-Leiss-Degener Collection | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Rh4
- 2.Sg6#
- 1...Rg6
- 2.Sxg6#
- 1...Bb1
- 2.Sc4#
- 1...Bc2
- 2.Sc4#
- 1...Bc4
- 2.Sxc4#
- 1...Rh4
- Tries
- 1.Bxg4?
- threat
- 2.Sg6#
- 2.Rf5#
- 1...Ra6
- 2.Rf5#
- 1...Sd6
- 2.Sg6#
- 1...Sg7
- 2.Sg6#
- 1...e3!
- threat
- 1.Be6?
- threat
- 2.Rf5#
- 2.Qb2#
- 1...Rf4
- 2.Sg6#
- 2.Qb2#
- 1...Rg5
- 2.Qb2#
- 1...Ra2
- 2.Rf5#
- 2.Qd5#
- 1...Ra3
- 2.Rf5#
- 2.Qd5#
- 1...Ra4
- 2.Rf5#
- 2.Qd5#
- 1...Rb5
- 2.Rf5#
- 1...Rc5
- 2.Rf5#
- 1...Rd5
- 2.Rf5#
- 2.Qxd5#
- 1...Bb5
- 2.Rf5#
- 2.Qd5#
- 1...Sd6
- 2.Qb2#
- 1...Sg7
- 2.Qb2#
- 2.Qc7#
- 2.Qb8#
- 1...e3!
- threat
- 1.Qc6?
- threat
- 2.Qe6#
- 1...Rg6
- 2.Sxg6#
- 1...Ra6
- 2.Qc5#
- 1...Bc4
- 2.Sxc4#
- 1...Sd6
- 2.Qxd6#
- 1...Sc7
- 2.Qd6#
- 1...Sg7
- 2.Qd6#
- 1...e3!
- threat
- 1.Qc7+?
- 1...Kd5
- 2.Be6#
- 1...Sd6
- 2.Qxd6#
- 1...Sxc7!
- 1...Kd5
- 1.Qd7?
- threat
- 2.Bd4#
- 2.Qe6#
- 2.Qd4#
- 1...Sd6
- 2.Qe6#
- 2.Qxd6#
- 1...Rf4
- 2.Sg6#
- 2.Bd4#
- 2.Qe6#
- 1...Rg6
- 2.Sxg6#
- 2.Bd4#
- 2.Qd4#
- 1...Ra4
- 2.Qe6#
- 1...Rd5
- 2.Qe6#
- 1...Ra6
- 2.Bd4#
- 2.Qd4#
- 1...Bc4
- 2.Sxc4#
- 2.Bd4#
- 2.Qd4#
- 1...Sc7
- 2.Bd4#
- 2.Qd4#
- 2.Qd6#
- 1...Sg7
- 2.Bd4#
- 2.Qd4#
- 2.Qd6#
- 1...e3!
- threat
- 1.Bxg4?
- Keys
- 1.Bxe4!
- threat
- 2.Rf5#
- 2.Qb2#
- 1...Rxe4
- 2.Sg6#
- 1...Bxe4
- 2.Sc4#
- 1...Rf4
- 2.Sg6#
- 2.Qb2#
- 1...Rg5
- 2.Qb2#
- 1...Ra2
- 2.Rf5#
- 2.Qd5#
- 1...Ra3
- 2.Rf5#
- 2.Qd5#
- 1...Ra4
- 2.Rf5#
- 2.Qd5#
- 1...Rb5
- 2.Rf5#
- 1...Rc5
- 2.Rf5#
- 1...Rd5
- 2.Rf5#
- 2.Qxd5#
- 1...Bb5
- 2.Rf5#
- 2.Qd5#
- 1...Sd6
- 2.Qb2#
- 1...Sg7
- 2.Qb2#
- 2.Qc7#
- 2.Qb8#
- threat
- 1.Bxe4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 5
- Sets
- R(d);N_GUARD::S(I)
- R(d);N_GUARD::S(I),XR(d)
- B(a);N_GUARD::S(C)
- B(a);N_GUARD::S(C),XB(a)
- Tries
- Try
- B(E);XR(d)
- Threat
- DUALS(2)
- Vars
- R(e);::R1(A)
- S(h);::S(I)
- Refutation
- P(c);
- Try
- B(E);
- Threat
- DUALS(2)
- Vars
- R(d);::QAB(F)
- R(e);::R1(A)
- S(h);::QAB(F)
- Refutation
- P(c);
- Try
- Q(F);
- Threat
- QAR1(F)
- Vars
- R(d);N_GUARD::S(I),XR(d)
- R(e);N_GUARD::QAR2(F)
- B(a);N_GUARD::S(C),XB(a)
- S(h);N_GUARD::QAB1(F),XS(h)
- S(h);N_GUARD::QAB1(F)
- Refutation
- P(c);
- Try
- Q(F);CHECK
- Vars
- K(f);P-FLIGHT,S_CUTS(h),S_CUTS(h)::B(E)
- S(h);N_GUARD,P_SPINS(h)::QAB1(F),XS(h)
- Refutation
- S(h);XQ(F)
- Try
- Q(F);
- Threat
- DUALS(3)
- Vars
- R(e);::QAR1(F)
- Refutation
- P(c);
- Try
- Actual
- B(E);XP(c)
- Threat
- DUALS(2)
- Vars
- R(d);N_GUARD,XB(E)::S(I)
- B(a);N_GUARD,XB(E)::S(C)
- R(d);::QAB(F)
- R(e);::R1(A)
- S(h);::QAB(F)
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).