MESON Chess Problem Database
Problem Display
PID: 92139 (4R3/6pq/1p4p1/brp4p/Q1pp1N2/R3BkNK/B1rp4/1b6 w - - 0 1)
Wielgos, Oskar
Schweizerische Schachzeitung, 1985
#2
8 + 14
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rxa2
- 2.Qd1#
- 1...Rcb2
- 2.Qd1#
- 1...Rc3
- 2.Qd1#
- 1...Rbb2
- 2.Qc6#
- 1...Rb3
- 2.Qc6#
- 1...Rb4
- 2.Qc6#
- 1...Bc3
- 2.Qa8#
- 1...Bb4
- 2.Qa8#
- 1...c3
- 2.Bd5#
- 1...Rxa2
- Tries
- 1.Sfe2?
- threat
- 2.Sg1#
- 2.Rf8#
- 1...Rxa2
- 2.Sg1#
- 1...dxe3
- 2.Rf8#
- 1...d1Q
- 2.Rf8#
- 1...d1R
- 2.Rf8#
- 1...Qg8
- 2.Sg1#
- 1...Qh6
- 2.Sg1#
- 1...Qh8
- 2.Sg1#
- 1...Rcb2
- 2.Sg1#
- 1...Rc3
- 2.Sg1#
- 1...Rb3
- 2.Sg1#
- 2.Qc6#
- 1...Bc3
- 2.Sg1#
- 2.Qa8#
- 1...c3
- 2.Sg1#
- 2.Bd5#
- 1...d3
- 2.Sg1#
- 1...g5
- 2.Sg1#
- 1...Rc1!
- threat
- 1.Sg2?
- threat
- 2.Sh4#
- 2.Rf8#
- 1...Rxa2
- 2.Sh4#
- 2.Qd1#
- 1...dxe3
- 2.Rf8#
- 1...Qg8
- 2.Sh4#
- 1...Qh6
- 2.Sh4#
- 1...Qh8
- 2.Sh4#
- 1...Rc1
- 2.Sh4#
- 1...Rcb2
- 2.Sh4#
- 2.Qd1#
- 1...Rc3
- 2.Sh4#
- 2.Qd1#
- 1...h4
- 2.Rf8#
- 1...g5!
- threat
- 1.Se6?
- threat
- 2.Sg5#
- 2.Rf8#
- 1...Rxa2
- 2.Sg5#
- 2.Qd1#
- 1...dxe3
- 2.Rf8#
- 1...Rc3
- 2.Sg5#
- 1...Rb3
- 2.Sg5#
- 1...Bc3
- 2.Sg5#
- 1...c3
- 2.Sg5#
- 1...d3
- 2.Sg5#
- 1...Qg8
- 2.Sg5#
- 1...Qh8
- 2.Sg5#
- 1...Rc1
- 2.Sg5#
- 1...Rcb2
- 2.Sg5#
- 2.Qd1#
- 1...g5
- 2.Sxg5#
- 1...Qh6!
- threat
- 1.Sxg6?
- threat
- 2.Sh4#
- 2.Se5#
- 2.Rf8#
- 1...Rxa2
- 2.Sh4#
- 2.Se5#
- 2.Qd1#
- 1...dxe3
- 2.Rf8#
- 1...Qh6
- 2.Sh4#
- 2.Se5#
- 1...Qg8
- 2.Sh4#
- 2.Se5#
- 1...Qh8
- 2.Sh4#
- 2.Se5#
- 1...Rc1
- 2.Sh4#
- 2.Se5#
- 1...Rcb2
- 2.Sh4#
- 2.Se5#
- 2.Qd1#
- 1...Rc3
- 2.Sh4#
- 2.Qd1#
- 1...Rb3
- 2.Sh4#
- 2.Qc6#
- 1...Bc3
- 2.Sh4#
- 2.Qa8#
- 1...c3
- 2.Sh4#
- 2.Bd5#
- 1...d3
- 2.Sh4#
- 1...h4
- 2.Se5#
- 2.Rf8#
- 1...Qxg6!
- threat
- 1.Bxc4?
- threat
- 2.Be2#
- 2.Bd5#
- 1...Rxc4
- 2.Qd1#
- 1...d1Q
- 2.Bd5#
- 1...d1S
- 2.Bd5#
- 1...d1B
- 2.Bd5#
- 1...d1R
- 2.Bd5#
- 1...Qg8
- 2.Be2#
- 1...Rc1
- 2.Be2#
- 1...Ra2
- 2.Be2#
- 2.Qd1#
- 1...Rcb2
- 2.Be2#
- 2.Qd1#
- 1...Rc3
- 2.Be2#
- 2.Qd1#
- 1...Ba2
- 2.Be2#
- 1...d3
- 2.Bd5#
- 1...g5
- 2.Be2#
- 1...dxe3!
- threat
- 1.Qxc4?
- threat
- 2.Qf1#
- 2.Qe2#
- 2.Qd5#
- 1...Rxa2
- 2.Qf1#
- 2.Qe2#
- 1...Bxa2
- 2.Qf1#
- 2.Qe2#
- 1...dxe3
- 2.Qf1#
- 1...d1Q
- 2.Qd5#
- 1...d1S
- 2.Qd5#
- 1...d1B
- 2.Qd5#
- 1...d1R
- 2.Qd5#
- 1...Qg8
- 2.Qf1#
- 2.Qe2#
- 1...Rc1
- 2.Qe2#
- 1...Rcb2
- 2.Qf1#
- 2.Qe2#
- 1...Rc3
- 2.Qf1#
- 2.Qe2#
- 1...d3
- 2.Qd5#
- 2.Qe4#
- 1...g5
- 2.Qf1#
- 2.Qe2#
- 1...Rxc4!
- threat
- 1.Sfe2?
- Keys
- 1.Sd3!
- threat
- 2.Se5#
- 1...cxd3
- 2.Bd5#
- 1...dxe3
- 2.Rf8#
- 1...Rc3
- 2.Qd1#
- 1...Rb3
- 2.Qc6#
- 1...Bc3
- 2.Qa8#
- 1...c3
- 2.Bd5#
- threat
- 1.Sd3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 5
- Sets
- R(b);OGATE,XB(A)::QAB(F)
- R(b);OGATE::QAB(F)
- R(h);OGATE::QAB(F)
- B(g);OGATE::QAB(F)
- P(e);OGATE::B(A)
- Tries
- Try
- S(G);
- Threat
- DUALS(2)
- Vars
- R(b);XB(A)::S(G)
- P(f);P_SPINP(f),XB(C)::R(H)
- P(c);::R(H)
- Q(n);::S(G)
- R(b);::S(G)
- P(f);::S(G)
- P(l);::S(G)
- Refutation
- R(b);
- Try
- S(G);
- Threat
- DUALS(2)
- Vars
- P(f);P_SPINP(f),XB(C)::R(H)
- Q(n);::S(G)
- R(b);::S(G)
- P(j);::R(H)
- Refutation
- P(l);
- Try
- S(G);
- Threat
- DUALS(2)
- Vars
- P(f);P_SPINP(f),XB(C)::R(H)
- R(b);::S(G)
- R(h);::S(G)
- B(g);::S(G)
- P(e);::S(G)
- P(f);::S(G)
- Q(n);::S(G)
- P(l);::S(G),XP(l)
- Refutation
- Q(n);
- Try
- S(G);XP(l)
- Threat
- DUALS(3)
- Vars
- P(f);P_SPINP(f),XB(C)::R(H)
- P(f);::S(G)
- Refutation
- Q(n);XS(G)
- Try
- B(A);XP(e)
- Threat
- DUALS(2)
- Vars
- R(b);OGATE,XB(A)::QAB(F)
- P(c);::B(A)
- Q(n);::B(A)
- R(b);::B(A)
- B(a);::B(A)
- P(f);::B(A)
- P(l);::B(A)
- Refutation
- P(f);P_SPINP(f),XB(C)
- Try
- Q(F);XP(e)
- Threat
- DUALS(3)
- Vars
- P(f);P_SPINP(f),XB(C)::QAR2(F)
- P(c);::QAB(F)
- R(b);::QAB1(F)
- Refutation
- R(b);XQ(F)
- Try
- Actual
- S(G);
- Threat
- S(G)
- Vars
- P(e);OGATE,XS(G)::B(A)
- P(f);SBLOCK,XB(C)::R(H)
- R(b);OGATE::QAB(F)
- R(h);OGATE::QAB(F)
- B(g);OGATE::QAB(F)
- P(e);OGATE::B(A)
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).