MESON Chess Problem Database
Problem Display
PID: 236543 (1NQ2nK1/3pP3/2N3n1/2Bk4/3P4/rq6/2P5/4RB2 w - - 0 1)
Heyl, Peter
Rochade Europa, 2001
#2
10 + 6
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Qa2
- 2.Sb4#
- 1...Qxc2
- 2.Sb4#
- 1...Qb1
- 2.c4#
- 1...Qb2
- 2.c4#
- 1...Qf3
- 2.Sb4#
- 2.c4#
- 1...Qg3
- 2.Sb4#
- 2.c4#
- 1...Qh3
- 2.Sb4#
- 2.c4#
- 1...Qb4
- 2.Sxb4#
- 1...Qb6
- 2.c4#
- 1...Qb7
- 2.c4#
- 1...Qxb8
- 2.c4#
- 1...Sf4
- 2.Re5#
- 1...Sh4
- 2.Re5#
- 1...Se5
- 2.Rxe5#
- 1...Sxe7+
- 2.Sxe7#
- 1...Sh8
- 2.Re5#
- 1...Se6
- 2.Qxd7#
- 1...Sh7
- 2.Qxd7#
- 1...dxc6
- 2.Qxc6#
- 1...Qa2
- Tries
- 1.Sxd7?
- threat
- 2.Sf6#
- 1...Sxe7+
- 2.Sxe7#
- 1...Sxd7
- 2.Qxd7#
- 1...Qd3
- 2.Sb6#
- 1...Qf3
- 2.Sb4#
- 2.Sb6#
- 2.c4#
- 1...Sh7!
- threat
- 1.cxb3?
- threat
- 2.Sb4#
- 2.Bg2#
- 2.Bc4#
- 1...Sxe7+
- 2.Sxe7#
- 1...dxc6
- 2.Bg2#
- 2.Bc4#
- 2.Qxc6#
- 1...Se5
- 2.Rxe5#
- 1...Ra2
- 2.Sb4#
- 2.Bc4#
- 1...Ra4
- 2.Bg2#
- 1...Sf4
- 2.Sb4#
- 2.Bc4#
- 2.Re5#
- 1...Sh4
- 2.Sb4#
- 2.Bc4#
- 2.Re5#
- 1...Rxb3!
- threat
- 1.exf8Q?
- threat
- 2.Qxd7#
- 2.Qd6#
- 2.Qf7#
- 1...Se7+
- 2.Sxe7#
- 1...Qxb8
- 2.Qf7#
- 2.c4#
- 1...Sxf8
- 2.Se7#
- 2.Re5#
- 1...dxc6
- 2.Qe6#
- 2.Qd7#
- 2.Qd6#
- 2.Qxc6#
- 2.Qcd8#
- 2.Qf7#
- 2.Qfd8#
- 1...Qd3
- 2.Qf7#
- 1...Se5
- 2.Rxe5#
- 2.Qd6#
- 1...Qf3
- 2.Sb4#
- 2.Qxd7#
- 2.Qd6#
- 2.c4#
- 1...Qg3
- 2.Sb4#
- 2.Qf7#
- 2.c4#
- 1...Qh3
- 2.Sb4#
- 2.Qd6#
- 2.c4#
- 1...Qb7
- 2.Qd6#
- 2.Qf7#
- 2.c4#
- 1...Ra7
- 2.Qd6#
- 2.Qf7#
- 1...Sf4
- 2.Se7#
- 2.Re5#
- 2.Qxd7#
- 2.Qd6#
- 2.Qf5#
- 1...Sh8
- 2.Se7#
- 2.Re5#
- 2.Qxd7#
- 2.Qd6#
- 2.Qf5#
- 1...d6
- 2.Qe6#
- 2.Qxd6#
- 2.Qf7#
- 1...Qe3!
- threat
- 1.e8Q?
- threat
- 2.Qe4#
- 1...Se7+
- 2.Sxe7#
- 1...Qxc2
- 2.Sb4#
- 1...Qe3
- 2.Sb4#
- 2.c4#
- 1...Qf3
- 2.Sb4#
- 2.c4#
- 1...Se5
- 2.Rxe5#
- 2.Qxe5#
- 1...Se6
- 2.Qcxd7#
- 2.Qexd7#
- 1...Qd3!
- threat
- 1.Sxd7?
- Keys
- 1.Qb7!
- threat
- 2.Sb4#
- 1...Sxe7+
- 2.Sxe7#
- 1...Qxb7
- 2.c4#
- 1...dxc6
- 2.Qxc6#
- 1...Qd3
- 2.Sa5#
- 1...Qe3
- 2.Sd8#
- 1...Se5
- 2.Rxe5#
- 1...Qb4
- 2.Sxb4#
- threat
- 1.Qb7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 11
- Sets
- Q(b);N_GUARD::S(F)
- Q(b);N_GUARD,XP(C)::S(F)
- Q(b);N_GUARD::P(C)
- Q(b);N_GUARD::S(F),XQ(b)
- Q(b);N_GUARD,XS(H)::P(C)
- S(d);N_GUARD::R1(A)
- S(d);N_GUARD::R1(A),XS(d)
- S(d);CHECK,XP(G)::S(F),XS(d)
- S(f);N_GUARD::QAR2(I),XP(e)
- P(e);OGATE,XS(F)::QAB1(I),XP(e)
- Tries
- Try
- S(H);XP(e)
- Threat
- S(H)
- Vars
- S(d);CHECK,XP(G)::S(F),XS(d)
- S(f);OGATE,XS(H)::QAR2(I),XS(f)
- Q(b);N_GUARD::S(H)
- Refutation
- S(f);
- Try
- P(C);XQ(b)
- Threat
- DUALS(3)
- Vars
- S(d);CHECK,XP(G)::S(F),XS(d)
- S(d);N_GUARD::R1(A),XS(d)
- R(a);::B(B)
- Refutation
- R(a);XP(C)
- Try
- P(G);XS(f)
- Threat
- DUALS(3)
- Vars
- S(d);CHECK,N_GUARD::S(F),XS(d)
- Q(b);::QAB(G)
- Refutation
- Q(b);
- Try
- P(G);
- Threat
- QAB1(G)
- Vars
- S(d);CHECK,N_GUARD::S(F),XS(d)
- Q(b);N_GUARD,XP(C)::S(F)
- Refutation
- Q(b);
- Try
- Actual
- Q(I);
- Threat
- QAB(I)+S(F),DCHECK
- Vars
- S(d);CHECK,XP(G)::QAB(I)+S(F),DCHECK,XS(d)
- Q(b);N_GUARD,XQ(I)::P(C)
- P(e);OGATE,P_SPINP(e),XS(F)::QAB1(I),XP(e)
- Q(b);N_GUARD::QAB(I)+S(F)
- S(d);N_GUARD::R1(A),XS(d)
- Q(b);::QAB(I)+S(F),DCHECK,XQ(b)
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).