MESON Chess Problem Database
Problem Display
PID: 109211 (K2nB3/P1P1qP2/N1rk2N1/5P2/2PB3b/8/2n5/1Q6 w - - 0 1)
Prins, Hendrik
Slovensky Dennik, 1992
#2
11 + 6
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qg5
- 2.Be5#
- 1...Qf8
- 2.Be5#
- 1...Qe5
- 2.Bxe5#
- 1...Qxc7
- 2.Be5#
- 1...Qd7
- 2.Be5#
- 1...Qxf7
- 2.Be5#
- 1...Rc5
- 2.Bxc5#
- 1...Rb6
- 2.Bc5#
- 2.c8S#
- 1...Se6
- 2.Be5#
- 1...Qg5
- Tries
- 1.Qd1?
- threat
- 2.Bc5#
- 2.Be5#
- 1...Sxd4
- 2.Qxd4#
- 1...Qe5
- 2.Bc5#
- 2.Bxe5#
- 1...Rc5
- 2.Bxc5#
- 2.Be5#
- 1...Rxa6!
- threat
- 1.Qb4+?
- 1...Rc5
- 2.Bxc5#
- 2.Qxc5#
- 2.c8S#
- 1...Sxb4!
- 1...Rc5
- 1.Qb6?
- threat
- 2.Bc5#
- 2.c8S#
- 1...Qxc7
- 2.Bc5#
- 2.Be5#
- 1...Sxd4
- 2.Qxd4#
- 2.c8S#
- 1...Qe3
- 2.c8S#
- 1...Qe5
- 2.Bxe5#
- 2.c8S#
- 1...Qe6
- 2.Bc5#
- 1...Qd7
- 2.Bc5#
- 2.Be5#
- 1...Bf2
- 2.c8S#
- 1...Se6
- 2.Be5#
- 2.Qxc6#
- 2.c8S#
- 1...Sb7
- 2.Qxc6#
- 2.c8S#
- 1...Qxe8!
- threat
- 1.cxd8Q+?
- 1...Qd7
- 2.Be5#
- 2.Qxd7#
- 1...Qxd8+!
- 1...Qd7
- 1.cxd8R+?
- 1...Qd7
- 2.Be5#
- 2.Rxd7#
- 1...Qxd8+!
- 1...Qd7
- 1.f8Q?
- threat
- 2.Be5#
- 2.cxd8Q#
- 2.cxd8R#
- 1...Qxf8
- 2.Be5#
- 1...Rxc4
- 2.cxd8Q#
- 2.cxd8R#
- 1...Rxa6
- 2.cxd8Q#
- 1...Rxc7
- 2.Be5#
- 1...Sxd4
- 2.cxd8Q#
- 2.cxd8R#
- 1...Rc5
- 2.Bxc5#
- 2.cxd8Q#
- 2.cxd8R#
- 1...Rb6
- 2.Bc5#
- 2.Be5#
- 2.cxd8Q#
- 2.cxd8R#
- 2.c8S#
- 1...Be1
- 2.Be5#
- 2.Qxe7#
- 2.cxd8Q#
- 2.cxd8R#
- 1...Bf2
- 2.Be5#
- 2.Qxe7#
- 2.cxd8Q#
- 2.cxd8R#
- 1...Bg3
- 2.Qxe7#
- 2.cxd8Q#
- 2.cxd8R#
- 1...Bg5
- 2.Be5#
- 2.cxd8Q#
- 2.cxd8R#
- 1...Bf6
- 2.cxd8Q#
- 2.cxd8R#
- 1...Sa1
- 2.Be5#
- 2.cxd8Q#
- 2.cxd8R#
- 1...Se1
- 2.Be5#
- 2.cxd8Q#
- 2.cxd8R#
- 1...Sa3
- 2.Be5#
- 2.cxd8Q#
- 2.cxd8R#
- 1...Se3
- 2.Be5#
- 2.cxd8Q#
- 2.cxd8R#
- 1...Sb4
- 2.Be5#
- 2.cxd8Q#
- 2.cxd8R#
- 1...Se6
- 2.Be5#
- 1...Sb7
- 2.Be5#
- 1...Sf7!
- threat
- 1.f8B?
- threat
- 2.Be5#
- 2.cxd8Q#
- 2.cxd8R#
- 1...Qxf8
- 2.Be5#
- 1...Rxc4
- 2.cxd8Q#
- 2.cxd8R#
- 1...Rxa6
- 2.cxd8Q#
- 1...Rxc7
- 2.Be5#
- 1...Sxd4
- 2.cxd8Q#
- 2.cxd8R#
- 1...Rc5
- 2.Bxc5#
- 2.cxd8Q#
- 2.cxd8R#
- 1...Rb6
- 2.Bc5#
- 2.Be5#
- 2.cxd8Q#
- 2.cxd8R#
- 2.c8S#
- 1...Be1
- 2.Be5#
- 2.Bxe7#
- 2.cxd8Q#
- 2.cxd8R#
- 1...Bf2
- 2.Be5#
- 2.Bxe7#
- 2.cxd8Q#
- 2.cxd8R#
- 1...Bg3
- 2.Bxe7#
- 2.cxd8Q#
- 2.cxd8R#
- 1...Bg5
- 2.Be5#
- 2.cxd8Q#
- 2.cxd8R#
- 1...Bf6
- 2.cxd8Q#
- 2.cxd8R#
- 1...Sa1
- 2.Be5#
- 2.cxd8Q#
- 2.cxd8R#
- 1...Se1
- 2.Be5#
- 2.cxd8Q#
- 2.cxd8R#
- 1...Sa3
- 2.Be5#
- 2.cxd8Q#
- 2.cxd8R#
- 1...Se3
- 2.Be5#
- 2.cxd8Q#
- 2.cxd8R#
- 1...Sb4
- 2.Be5#
- 2.cxd8Q#
- 2.cxd8R#
- 1...Se6
- 2.Be5#
- 1...Sb7
- 2.Be5#
- 1...Sf7!
- threat
- 1.Qd1?
- Keys
- 1.Qb8!
- threat
- 2.cxd8Q#
- 2.cxd8R#
- 2.c8S#
- 1...Qxc7
- 2.Be5#
- 1...Qxf7
- 2.Be5#
- 2.cxd8Q#
- 2.cxd8R#
- 2.c8S#
- 1...Qxe8
- 2.cxd8Q#
- 2.cxd8R#
- 1...Rxc4
- 2.cxd8Q#
- 2.cxd8R#
- 1...Rxa6
- 2.cxd8Q#
- 2.cxd8R#
- 2.c8S#
- 1...Rxc7
- 2.Bc5#
- 1...Sxd4
- 2.cxd8Q#
- 2.cxd8R#
- 2.c8S#
- 1...Sxf7
- 2.c8S#
- 1...Qg5
- 2.Be5#
- 2.cxd8Q#
- 2.cxd8R#
- 2.c8S#
- 1...Qf6
- 2.cxd8Q#
- 2.cxd8R#
- 2.c8S#
- 1...Qf8
- 2.Be5#
- 2.cxd8Q#
- 2.cxd8R#
- 2.c8S#
- 1...Qe1
- 2.cxd8Q#
- 2.cxd8R#
- 2.c8S#
- 1...Qe2
- 2.cxd8Q#
- 2.cxd8R#
- 2.c8S#
- 1...Qe3
- 2.cxd8Q#
- 2.cxd8R#
- 2.c8S#
- 1...Qe4
- 2.cxd8Q#
- 2.cxd8R#
- 2.c8S#
- 1...Qe5
- 2.Bxe5#
- 2.cxd8Q#
- 2.cxd8R#
- 2.c8S#
- 1...Qe6
- 2.cxd8Q#
- 2.cxd8R#
- 2.c8S#
- 1...Qd7
- 2.Be5#
- 2.c8S#
- 1...Rc5
- 2.Bxc5#
- 2.cxd8Q#
- 2.cxd8R#
- 2.c8S#
- 1...Rb6
- 2.Bc5#
- 2.cxd8Q#
- 2.cxd8R#
- 2.c8S#
- 1...Be1
- 2.cxd8Q#
- 2.cxd8R#
- 2.c8S#
- 1...Bf2
- 2.cxd8Q#
- 2.cxd8R#
- 2.c8S#
- 1...Bg3
- 2.cxd8Q#
- 2.cxd8R#
- 2.c8S#
- 1...Bg5
- 2.cxd8Q#
- 2.cxd8R#
- 2.c8S#
- 1...Bf6
- 2.cxd8Q#
- 2.cxd8R#
- 2.c8S#
- 1...Sa1
- 2.cxd8Q#
- 2.cxd8R#
- 2.c8S#
- 1...Se1
- 2.cxd8Q#
- 2.cxd8R#
- 2.c8S#
- 1...Sa3
- 2.cxd8Q#
- 2.cxd8R#
- 2.c8S#
- 1...Se3
- 2.cxd8Q#
- 2.cxd8R#
- 2.c8S#
- 1...Sb4
- 2.cxd8Q#
- 2.cxd8R#
- 2.c8S#
- 1...Se6
- 2.Be5#
- 2.c8S#
- 1...Sb7
- 2.c8S#
- threat
- 1.Qb8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 7
- Sets
- Q(e);N_GUARD::B(C)
- Q(e);N_GUARD::B(C),XQ(e)
- Q(e);N_GUARD,XP(H)::B(C)
- Q(e);N_GUARD,XP(I)::B(C)
- R(c);N_GUARD::B(C),XR(c)
- S(f);S_CUTQ(e)::B(C)
- Tries
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- S(a);OGATE,P_SPINS(a),XB(C)::QAR2(A),XS(a)
- Refutation
- R(c);P_PINP(G),XS(E)
- Try
- Q(A);CHECK
- Refutation
- S(a);XQ(A)
- Try
- Q(A);P_PINR(c)
- Threat
- DUALS(2)
- Vars
- Q(e);::P=S
- Q(e);::B(C)
- B(b);::P=S
- Refutation
- Q(e);XB(K)
- Try
- P(H);CHECK,XS(f)
- Refutation
- Q(e);CHECK,XQ(H)
- Try
- P(H);CHECK,XS(f)
- Refutation
- Q(e);CHECK,XR(H)
- Try
- P(I);P_PINQ(e)
- Threat
- DUALS(3)
- Vars
- Q(e);N_SPINQ(e),XQ(I)::B(C)
- R(c);XP(B)::PXS(f)=Q
- R(c);P_PINP(G),XS(E)::PXS(f)=Q
- R(c);XP(H)::B(C)
- S(a);XB(C)::PXS(f)=Q
- B(b);::PXS(f)=Q
- S(f);::B(C)
- Refutation
- S(f);
- Try
- P(I);P_PINQ(e)
- Threat
- DUALS(3)
- Vars
- Q(e);N_SPINQ(e),XB(I)::B(C)
- R(c);XP(B)::PXS(f)=Q
- R(c);P_PINP(G),XS(E)::PXS(f)=Q
- R(c);XP(H)::B(C)
- S(a);XB(C)::PXS(f)=Q
- B(b);::PXS(f)=Q
- S(f);::B(C)
- Refutation
- S(f);
- Try
- Actual
- Q(A);
- Threat
- DUALS(3)
- Vars
- Q(e);N_GUARD,P_SPINQ(e),XP(H)::B(C)
- Q(e);XB(K)::PXS(f)=Q
- R(c);XP(B)::PXS(f)=Q
- R(c);N_GUARD,P_SPINR(c),XP(H)::B(C)
- S(f);XP(I)::P=S
- S(f);::P=S
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).