MESON Chess Problem Database
Problem Display
PID: 264385 (7Q/2PKP3/3p2P1/p2k4/1P1N1BN1/nP2p3/1r2nb2/qB6 w - - 0 1)
Klemanic, Emil
Comm., Praca, 1993
(First published on Sat Jul 17 1993)
#2
11 + 9
| 15601 | Albrecht-Leiss-Degener Collection | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Be1
- 2.Sxe3#
- 1...Bg3
- 2.Sxe3#
- 1...Bh4
- 2.Sxe3#
- 1...Sxd4
- 2.Sf6#
- 1...Be1
- Tries
- 1.Sxe2?
- threat
- 2.Sc3#
- 2.Sf6#
- 2.Qd4#
- 2.Qh1#
- 2.Qh5#
- 2.Qa8#
- 2.Qg8#
- 1...Qxb1
- 2.Sc3#
- 2.Sf6#
- 2.Qd4#
- 2.Qa8#
- 1...Rxb1
- 2.Qa8#
- 1...Rxb3
- 2.Qg8#
- 1...Sxb1
- 2.Sf6#
- 2.Qd4#
- 2.Qh1#
- 2.Qa8#
- 1...axb4
- 2.Qd4#
- 2.Qh5#
- 1...Rc2
- 2.Qh1#
- 1...Sc2
- 2.Sc3#
- 2.Sf6#
- 2.Qh1#
- 2.Qa8#
- 1...Ra2
- 2.Qh1#
- 2.Qa8#
- 2.Qg8#
- 1...Rd2
- 2.Qh1#
- 2.Qa8#
- 2.Qg8#
- 1...Be1
- 2.Sxe3#
- 2.Sf6#
- 2.Qd4#
- 2.Qh1#
- 2.Qh5#
- 2.Qa8#
- 2.Qg8#
- 1...Bh4
- 2.Sc3#
- 2.Sxe3#
- 2.Qd4#
- 2.Qa8#
- 2.Qg8#
- 1...Sc4
- 2.Sc3#
- 2.Sf6#
- 2.Qd4#
- 2.Qh1#
- 2.Qa8#
- 2.Qg8#
- 1...Sb5
- 2.Sf6#
- 2.Qh1#
- 2.Qh5#
- 2.Qa8#
- 2.Qg8#
- 1...Rxe2!
- threat
- 1.Sf3?
- threat
- 2.Sf6#
- 2.Qh5#
- 2.Qa8#
- 2.Qg8#
- 1...Qxb1
- 2.Sf6#
- 2.Qa8#
- 1...Rxb1
- 2.Qa8#
- 1...Rxb3
- 2.Qg8#
- 1...Sxf4
- 2.Sf6#
- 2.Qd4#
- 2.Qa8#
- 1...Sxb1
- 2.Sf6#
- 2.Qa8#
- 1...axb4
- 2.Qh5#
- 1...Sc2
- 2.Sf6#
- 2.Qa8#
- 1...Ra2
- 2.Qa8#
- 2.Qg8#
- 1...Rd2
- 2.Qa8#
- 2.Qg8#
- 1...Bh4
- 2.Sxe3#
- 2.Qa8#
- 2.Qg8#
- 1...Sg3
- 2.Sf6#
- 2.Qd4#
- 2.Qa8#
- 2.Qg8#
- 1...Sd4
- 2.Sf6#
- 2.Qxd4#
- 1...Sc4
- 2.Sf6#
- 2.Qa8#
- 2.Qg8#
- 1...Rc2!
- threat
- 1.Sb5?
- threat
- 2.Sf6#
- 2.Qh1#
- 2.Qh5#
- 2.Qa8#
- 2.Qg8#
- 1...Qxb1
- 2.Sf6#
- 2.Qa8#
- 1...Rxb1
- 2.Qa8#
- 1...Rxb3
- 2.Qg8#
- 1...Sxf4
- 2.Sc3#
- 2.Qd4#
- 2.Qa8#
- 1...Sxb1
- 2.Sf6#
- 2.Qh1#
- 2.Qa8#
- 1...axb4
- 2.Qh5#
- 1...Rc2
- 2.Qh1#
- 1...Sc2
- 2.Sf6#
- 2.Qh1#
- 2.Qa8#
- 1...Ra2
- 2.Qh1#
- 2.Qa8#
- 2.Qg8#
- 1...Rd2
- 2.Qh1#
- 2.Qa8#
- 2.Qg8#
- 1...Bh4
- 2.Sxe3#
- 2.Qa8#
- 2.Qg8#
- 1...Sg1
- 2.Sf6#
- 2.Sc3#
- 2.Qd4#
- 2.Qh5#
- 2.Qa8#
- 2.Qg8#
- 1...Sc3
- 2.Sf6#
- 2.Sxc3#
- 2.Qd4#
- 2.Qh5#
- 2.Qa8#
- 2.Qg8#
- 1...Sg3
- 2.Sf6#
- 2.Sc3#
- 2.Qd4#
- 2.Qa8#
- 2.Qg8#
- 1...Sd4
- 2.Sf6#
- 2.Sc3#
- 2.Qxd4#
- 1...Sc4
- 2.Sf6#
- 2.Qh1#
- 2.Qa8#
- 2.Qg8#
- 1...Sxb5!
- threat
- 1.Sf5?
- threat
- 2.Sf6#
- 2.Qh1#
- 2.Qa8#
- 2.Qg8#
- 1...Qxb1
- 2.Sf6#
- 2.Qa8#
- 1...Rxb1
- 2.Qa8#
- 1...Rxb3
- 2.Qg8#
- 1...Sxf4
- 2.Qd4#
- 2.Qa8#
- 1...Sxb1
- 2.Sf6#
- 2.Qh1#
- 2.Qa8#
- 1...Rc2
- 2.Qh1#
- 1...Sc2
- 2.Sf6#
- 2.Qh1#
- 2.Qa8#
- 1...Ra2
- 2.Qh1#
- 2.Qa8#
- 2.Qg8#
- 1...Rd2
- 2.Qh1#
- 2.Qa8#
- 2.Qg8#
- 1...Bh4
- 2.Sgxe3#
- 2.Sfxe3#
- 2.Qa8#
- 2.Qg8#
- 1...Sg1
- 2.Sf6#
- 2.Qd4#
- 2.Qa8#
- 2.Qg8#
- 1...Sc3
- 2.Sf6#
- 2.Qd4#
- 2.Qa8#
- 2.Qg8#
- 1...Sg3
- 2.Sf6#
- 2.Qd4#
- 2.Qa8#
- 2.Qg8#
- 1...Sd4
- 2.Sf6#
- 2.Qxd4#
- 1...axb4!
- threat
- 1.Sc6?
- threat
- 2.Sf6#
- 2.Qh1#
- 2.Qh5#
- 2.Qg8#
- 1...Qxb1
- 2.Sf6#
- 1...Rxb3
- 2.Qg8#
- 1...Sxf4
- 2.Sf6#
- 2.Qd4#
- 1...Sxb1
- 2.Sf6#
- 2.Qh1#
- 1...axb4
- 2.Qh5#
- 1...Rc2
- 2.Qh1#
- 1...Sc2
- 2.Sf6#
- 2.Qh1#
- 1...Ra2
- 2.Qh1#
- 2.Qg8#
- 1...Rd2
- 2.Qh1#
- 2.Qg8#
- 1...Bh4
- 2.Sxe3#
- 2.Qg8#
- 1...Sg1
- 2.Sf6#
- 2.Qd4#
- 2.Qh5#
- 2.Qg8#
- 1...Sc3
- 2.Sf6#
- 2.Qd4#
- 2.Qh5#
- 2.Qg8#
- 1...Sg3
- 2.Sf6#
- 2.Qd4#
- 2.Qg8#
- 1...Sd4
- 2.Sf6#
- 2.Qxd4#
- 1...Sc4
- 2.Sf6#
- 2.Qh1#
- 2.Qg8#
- 1...Rxb1!
- threat
- 1.Se6?
- threat
- 2.Sf6#
- 2.Qh1#
- 2.Qh5#
- 2.Qa8#
- 1...Qxb1
- 2.Sf6#
- 2.Qa8#
- 1...Rxb1
- 2.Qa8#
- 1...Sxf4
- 2.Sxf4#
- 2.Qd4#
- 2.Qa8#
- 1...Sxb1
- 2.Sf6#
- 2.Qh1#
- 2.Qa8#
- 1...Rc2
- 2.Qh1#
- 1...Sc2
- 2.Sf6#
- 2.Qh1#
- 2.Qa8#
- 1...Ra2
- 2.Qh1#
- 2.Qa8#
- 1...Rd2
- 2.Qh1#
- 2.Qa8#
- 1...Bh4
- 2.Sxe3#
- 2.Qa8#
- 1...Sg1
- 2.Sf6#
- 2.Qd4#
- 2.Qh5#
- 2.Qa8#
- 1...Sc3
- 2.Sf6#
- 2.Qd4#
- 2.Qh5#
- 2.Qa8#
- 1...Sg3
- 2.Sf6#
- 2.Qd4#
- 2.Qa8#
- 1...Sd4
- 2.Sf6#
- 2.Qxd4#
- 1...Sc4
- 2.Sf6#
- 2.Qh1#
- 2.Qa8#
- 1...Rxb3!
- threat
- 1.c8Q?
- threat
- 2.Qb7#
- 2.Qc6#
- 2.Qa8#
- 2.Qcg8#
- 1...Qxb1
- 2.Qb7#
- 2.Qc6#
- 2.Qa8#
- 1...Rxb1
- 2.Qb7#
- 2.Qc6#
- 2.Qa8#
- 1...Rxb3
- 2.Qc6#
- 2.Qcg8#
- 1...Sxd4
- 2.Sf6#
- 1...Sxf4
- 2.Qb7#
- 2.Qc6#
- 2.Qa8#
- 1...Sxb1
- 2.Qb7#
- 2.Qc6#
- 2.Qa8#
- 1...axb4
- 2.Qc6#
- 1...Sc2
- 2.Qb7#
- 2.Qc6#
- 2.Qa8#
- 1...Rc2!
- threat
- 1.e8Q?
- threat
- 2.Be4#
- 2.Qf7#
- 2.Qe4#
- 2.Qe6#
- 2.Qa8#
- 2.Qeg8#
- 1...Qxb1
- 2.Qe6#
- 2.Qa8#
- 1...Rxb1
- 2.Qe6#
- 2.Qa8#
- 1...Rxb3
- 2.Qf7#
- 2.Qe6#
- 2.Qeg8#
- 1...Sxd4
- 2.Sf6#
- 2.Be4#
- 2.Qe4#
- 1...Sxf4
- 2.Be4#
- 2.Qe4#
- 2.Qa8#
- 1...Sxb1
- 2.Qe6#
- 2.Qa8#
- 1...Rc2
- 2.Qe6#
- 1...Sc3
- 2.Qf7#
- 2.Qe6#
- 2.Qa8#
- 2.Qeg8#
- 1...Sg3
- 2.Qf7#
- 2.Qe6#
- 2.Qa8#
- 2.Qeg8#
- 1...Sc2
- 2.Qe6#
- 2.Qa8#
- 1...axb4!
- threat
- 1.Sxe2?
- Keys
- 1.Bxe3!
- threat
- 2.Qh1#
- 2.Qh5#
- 2.Qa8#
- 2.Qg8#
- 1...Qxb1
- 2.Qa8#
- 1...Rxb1
- 2.Qa8#
- 1...Rxb3
- 2.Qg8#
- 1...Bxe3
- 2.Sxe3#
- 1...Sxd4
- 2.Qxd4#
- 1...Sxb1
- 2.Qh1#
- 2.Qa8#
- 1...axb4
- 2.Qh5#
- 1...Rc2
- 2.Qh1#
- 1...Sc2
- 2.Qh1#
- 2.Qa8#
- 1...Bg3
- 2.Qh1#
- 2.Qa8#
- 2.Qg8#
- 1...Bh4
- 2.Qa8#
- 2.Qg8#
- 1...Sg1
- 2.Qh5#
- 2.Qa8#
- 2.Qg8#
- 1...Sc3
- 2.Qh5#
- 2.Qa8#
- 2.Qg8#
- 1...Sg3
- 2.Qa8#
- 2.Qg8#
- 1...Sf4
- 2.Qa8#
- 1...Sc4
- 2.Qh1#
- 2.Qa8#
- 2.Qg8#
- threat
- 1.Bxe3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 7
- REMOVED MATES = 3
- Sets
- B(d);N_GUARD::S(F),XP(f)
- S(c);SBLOCK,XS(D)::S(F)
- Tries
- Try
- S(D);XS(c)
- Threat
- DUALS(7)
- Vars
- R(b);XB(A)::QAB(K)
- R(b);XP(B)::QAB(K)
- R(b);::QAB(K)
- Refutation
- R(b);XS(D)
- Try
- S(D);
- Threat
- DUALS(4)
- Vars
- R(b);XB(A)::QAB(K)
- R(b);XP(B)::QAB(K)
- P(g);XP(C)::QAR(K)
- Refutation
- R(b);
- Try
- S(D);
- Threat
- DUALS(5)
- Vars
- R(b);XB(A)::QAB(K)
- R(b);XP(B)::QAB(K)
- P(g);XP(C)::QAR(K)
- R(b);::QAB(K)
- Refutation
- S(e);XS(D)
- Try
- S(D);
- Threat
- DUALS(4)
- Vars
- R(b);XB(A)::QAB(K)
- R(b);XP(B)::QAB(K)
- R(b);::QAB(K)
- Refutation
- P(g);XP(C)
- Try
- S(D);
- Threat
- DUALS(4)
- Vars
- Q(a);XB(A)::S(F)
- R(b);XP(B)::QAB(K)
- P(g);XP(C)::QAR(K)
- R(b);::QAB(K)
- Refutation
- R(b);XB(A)
- Try
- S(D);
- Threat
- DUALS(4)
- Vars
- R(b);XB(A)::QAB(K)
- R(b);::QAB(K)
- Refutation
- R(b);XP(B)
- Try
- P(H);
- Threat
- DUALS(4)
- Vars
- S(c);SBLOCK,XS(D)::S(F)
- P(g);XP(C)::QAB1(H)
- Refutation
- R(b);
- Try
- P(J);
- Threat
- DUALS(6)
- Vars
- R(b);::QAB1(J)
- Refutation
- P(g);XP(C)
- Try
- Actual
- B(E);XP(f)
- Threat
- DUALS(4)
- Vars
- Q(a);XB(A)::QAB(K)
- R(b);XB(A)::QAB(K)
- R(b);XP(B)::QAB(K)
- B(d);XB(E)::S(F),XB(d)
- S(c);OGATE,XS(D)::QAR1(K),XS(c)
- P(g);XP(C)::QAR(K)
- R(b);::QAB(K)
- S(c);::QAB(K)
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).