MESON Chess Problem Database
Problem Display
PID: 159991 (3r1b2/p4B1K/ppQ5/4pn2/N1Nk3n/3p1P2/3P4/qb2r3 w - - 0 1)
Schonholzer, Andreas
1st HM., Scacchi e Scienze Applicate, 2004
#2
7 + 13
| 15527 | schachkunst (1997-2010) (Hoffmann) | 2016 |
SOLUTION
- SOUND
- Sets
- 1...Qc3
- 2.dxc3#
- 1...Rc1
- 2.Qe4#
- 1...Rd1
- 2.Qe4#
- 1...Rf1
- 2.Qe4#
- 1...Rg1
- 2.Qe4#
- 1...Rh1
- 2.Qe4#
- 1...Re4
- 2.Qxe4#
- 1...Rd5
- 2.Qxd5#
- 1...Ra8
- 2.Qd5#
- 1...Rb8
- 2.Qd5#
- 1...Rc8
- 2.Qd5#
- 1...Re8
- 2.Qd5#
- 1...Bd6
- 2.Qd5#
- 1...Se3
- 2.Qe4#
- 1...Sd6
- 2.Qd5#
- 1...e4
- 2.Qf6#
- 1...Qc3
- Tries
- 1.Scb2?
- threat
- 2.Qc3#
- 2.Qc4#
- 1...Qxb2
- 2.Qc4#
- 1...Qxa4
- 2.Qc3#
- 1...Sxf3
- 2.Qc4#
- 1...e4
- 2.Qc3#
- 2.Qf6#
- 1...Qa2
- 2.Qc3#
- 1...Qa3
- 2.Qc4#
- 1...Rc1
- 2.Qe4#
- 1...Rc8
- 2.Qd5#
- 1...Ba2
- 2.Qc3#
- 1...Bb4
- 2.Qc4#
- 1...Se3
- 2.Qe4#
- 2.Qc3#
- 1...Sd6
- 2.Qd5#
- 2.Qc3#
- 1...b5
- 2.Qc3#
- 1...Bc5!
- threat
- 1.Sa5?
- threat
- 2.Sb3#
- 2.Qc4#
- 1...Qxa4
- 2.Qc3#
- 1...bxa5
- 2.Qc4#
- 1...e4
- 2.Qf6#
- 1...Bc5
- 2.Sb3#
- 1...Qb2
- 2.Qc4#
- 1...Qc3
- 2.Qxc3#
- 1...Qa2
- 2.Qc3#
- 1...Qa3
- 2.Qc4#
- 1...Rc1
- 2.Sb3#
- 2.Qe4#
- 1...Rc8
- 2.Sb3#
- 2.Qd5#
- 1...Bc2
- 2.Qc4#
- 1...Se3
- 2.Sb3#
- 2.Qe4#
- 1...Sd6
- 2.Sb3#
- 2.Qd5#
- 1...b5
- 2.Sb3#
- 1...Ba2!
- threat
- 1.Scxb6?
- threat
- 2.Qc4#
- 1...Qxa4
- 2.Qc3#
- 1...e4
- 2.Qf6#
- 1...Bc5
- 2.Qxc5#
- 1...Qc3
- 2.Qxc3#
- 1...Qa2
- 2.Qc3#
- 1...Rc1
- 2.Qe4#
- 1...Rc8
- 2.Qd5#
- 1...Se3
- 2.Qe4#
- 1...Sd6
- 2.Qd5#
- 2.Qc5#
- 1...Ba2!
- threat
- 1.Sd6?
- threat
- 2.Qd5#
- 2.Qc4#
- 1...Qxa4
- 2.Qd5#
- 2.Qc3#
- 1...Rxd6
- 2.Qc4#
- 1...Sxd6
- 2.Qd5#
- 1...e4
- 2.Qd5#
- 1...Qc3
- 2.Qd5#
- 2.Qxc3#
- 1...Qa2
- 2.Qc3#
- 1...Rc1
- 2.Qe4#
- 2.Qd5#
- 1...Rc8
- 2.Qd5#
- 1...Se3
- 2.Qe4#
- 1...Se7
- 2.Qc4#
- 1...b5
- 2.Qd5#
- 2.Qc5#
- 1...Ba2!
- threat
- 1.Qxb6+?
- 1...Bc5
- 2.Qxc5#
- 1...axb6!
- 1...Bc5
- 1.Scb2?
- Keys
- 1.Se3!
- threat
- 2.Qe4#
- 2.Qc4#
- 1...Qxa4
- 2.Qc3#
- 1...Rxe3
- 2.Qc4#
- 1...Sxf3
- 2.Sxf5#
- 2.Qc4#
- 1...Sxe3
- 2.Qe4#
- 1...e4
- 2.Qxe4#
- 2.Qf6#
- 1...Bc5
- 2.Qe4#
- 1...Qc3
- 2.Qe4#
- 2.Qxc3#
- 1...Qa2
- 2.Qe4#
- 2.Qc3#
- 1...Rc1
- 2.Qe4#
- 1...Rd5
- 2.Qxd5#
- 2.Qc4#
- 1...Rc8
- 2.Qe4#
- 2.Qd5#
- 1...Ba2
- 2.Qe4#
- 1...Sg3
- 2.Qc4#
- 1...Sd6
- 2.Qd5#
- 1...b5
- 2.Qe4#
- threat
- 1.Se3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 13
- Sets
- Q(a);OGATE::P(A),XQ(a)
- R(c);N_GUARD::QAR1(E)
- R(c);N_GUARD::QAR1(E),XR(c)
- R(l);N_GUARD::QAR1(E),XR(l)
- R(l);N_GUARD::QAR1(E)
- B(m);S_CUTR(l)::QAR1(E)
- S(h);S_CUTR(c)::QAR1(E)
- S(h);S_CUTR(l)::QAR1(E)
- P(g);OGATEB::QAB(E)
- Tries
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- Q(a);XS(D)::QAR1(E)
- Q(a);XS(C)::QAB1(E)
- S(f);XP(B)::QAR1(E)
- Q(a);::QAB1(E)
- Q(a);::QAR1(E)
- R(c);N_GUARD::QAR1(E)
- R(l);N_GUARD::QAR1(E)
- B(b);::QAB1(E)
- B(m);::QAR1(E)
- P(j);::QAB1(E)
- Refutation
- B(m);
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- Q(a);N_GUARD,XS(C)::QAB1(E)
- P(j);XS(D)::QAR1(E)
- P(g);OGATEB::QAB(E)
- B(m);::S(D)
- Q(a);::QAR1(E)
- Q(a);N_GUARD::QAB1(E),XQ(a)
- Q(a);N_GUARD::QAB1(E)
- B(b);::QAR1(E)
- P(j);::S(D)
- Refutation
- B(b);
- Try
- S(D);XP(j)
- Threat
- QAR1(E)
- Vars
- Q(a);N_GUARD,XS(C)::QAB1(E)
- P(g);OGATEB::QAB(E)
- B(m);N_GUARD::QAB1(E),XB(m)
- Q(a);N_GUARD::QAB1(E),XQ(a)
- Q(a);N_GUARD::QAB1(E)
- R(c);N_GUARD::QAR1(E)
- R(l);N_GUARD::QAR1(E)
- S(h);S_CUTR(c)::QAR1(E)
- Refutation
- B(b);
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- R(l);XS(D)::QAR1(E)
- S(h);XS(D)::QAR1(E)
- P(g);::QAR1(E)
- Q(a);N_GUARD::QAB1(E)
- R(l);::QAR1(E)
- S(h);S_CUTR(c)::QAR1(E)
- S(h);::QAR1(E)
- Refutation
- B(b);
- Try
- Q(E);CHECK,XP(j)
- Vars
- B(m);N_GUARD,P_SPINB(m)::QAB1(E),XB(m)
- Refutation
- P(k);XQ(E)
- Try
- Actual
- S(D);
- Threat
- DUALS(2)
- Vars
- Q(a);N_GUARD,XS(C)::QAB1(E)
- R(c);XS(D)::QAR1(E)
- S(h);XS(D)::QAR1(E)
- B(m);::QAR1(E)
- R(c);::QAR1(E)
- B(b);::QAR1(E)
- S(h);::QAR1(E)
- S(h);S_CUTR(l)::QAR1(E)
- P(j);::QAR1(E)
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).