MESON Chess Problem Database
Problem Display
PID: 85668 (1Nr1rN2/3P4/1P1k1P2/Rn3n1R/3B4/2p1p3/3Q3K/7B w - - 0 1)
Bonivento, Oscar
Slovensky Dennik, 1994
#2
11 + 7
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rc4
- 2.dxe8S#
- 1...Rc5
- 2.dxe8S#
- 1...Rc6
- 2.dxe8S#
- 1...Rc7
- 2.dxe8S#
- 1...Re5
- 2.dxc8S#
- 1...Re6
- 2.dxc8S#
- 1...Re7
- 2.dxc8S#
- 1...Sa3
- 2.Be5#
- 2.Rd5#
- 1...Sbxd4
- 2.Rd5#
- 1...Sa7
- 2.Be5#
- 2.Rd5#
- 1...Sc7
- 2.Be5#
- 1...Sg3
- 2.Bc5#
- 2.Rd5#
- 1...Sfxd4
- 2.Rd5#
- 1...Sh4
- 2.Bc5#
- 2.Rd5#
- 1...Sh6
- 2.Bc5#
- 2.Rd5#
- 1...Se7
- 2.Bc5#
- 1...Sg7
- 2.Bc5#
- 2.Rd5#
- 1...Rc4
- Tries
- 1.Bxc3+?
- 1...Kc5
- 2.Qd4#
- 1...Sbd4
- 2.Rd5#
- 1...Sfd4
- 2.Rd5#
- 1...exd2!
- 1...Kc5
- 1.Bxe3+?
- 1...Ke5
- 2.Qd4#
- 1...Sbd4
- 2.Rd5#
- 1...Sfd4
- 2.Rd5#
- 1...cxd2!
- 1...Ke5
- 1.Rxb5?
- threat
- 2.Be5#
- 2.Rd5#
- 1...Rxb8
- 2.Be5#
- 1...Sxd4
- 2.Rbd5#
- 2.Rhd5#
- 2.Qxd4#
- 1...cxd2
- 2.Rd5#
- 1...exd2
- 2.Rd5#
- 1...Rc5
- 2.dxe8S#
- 1...Re4
- 2.Be5#
- 2.dxc8S#
- 1...Re5
- 2.Bc5#
- 2.Bxe5#
- 2.dxc8S#
- 1...Se7
- 2.Bc5#
- 2.Be5#
- 1...Rxf8!
- threat
- 1.Rxf5?
- threat
- 2.Bc5#
- 2.Rd5#
- 1...Rxb8
- 2.Bc5#
- 1...Sxd4
- 2.Rad5#
- 2.Rfd5#
- 2.Qxd4#
- 1...cxd2
- 2.Rd5#
- 1...exd2
- 2.Rd5#
- 1...Rc5
- 2.Bxc5#
- 2.Be5#
- 2.dxe8S#
- 1...Re4
- 2.Bc5#
- 2.dxc8S#
- 1...Re5
- 2.dxc8S#
- 1...Sc7
- 2.Bc5#
- 2.Be5#
- 1...Rxf8!
- threat
- 1.Qg2?
- threat
- 2.Qd5#
- 1...Rc5
- 2.dxe8S#
- 1...Re5
- 2.dxc8S#
- 1...Sc7
- 2.Qc6#
- 1...Se7
- 2.Qg3#
- 1...Re4!
- threat
- 1.dxc8Q?
- threat
- 2.Qd7#
- 2.Qc5#
- 2.Qc6#
- 1...Rxf8
- 2.Qd7#
- 2.Qc6#
- 1...Re5
- 2.Bc5#
- 2.Qd7#
- 2.Qc6#
- 2.Qd8#
- 1...Re7
- 2.Qc5#
- 2.Qc6#
- 1...Rd8
- 2.Qe6#
- 2.Qc5#
- 2.Qc6#
- 2.Qxd8#
- 1...Sa7
- 2.Be5#
- 2.Rd5#
- 2.Qd7#
- 2.Qc5#
- 2.Qc7#
- 1...Sc7
- 2.Be5#
- 2.Qd7#
- 2.Qxc7#
- 1...Se7
- 2.Bc5#
- 2.Be5#
- 2.Qe6#
- 2.Qd7#
- 2.Qc5#
- 1...Rxc8!
- threat
- 1.dxc8R?
- threat
- 2.Rc6#
- 1...Re4
- 2.Rd8#
- 1...Sa7
- 2.Be5#
- 2.Rd5#
- 1...Sc7
- 2.Be5#
- 1...Se7
- 2.Bc5#
- 2.Be5#
- 1...Rxc8!
- threat
- 1.dxe8Q?
- threat
- 2.Qd7#
- 2.Qe5#
- 2.Qe6#
- 1...Rc5
- 2.Be5#
- 2.Qd7#
- 2.Qe6#
- 2.Qd8#
- 1...Rc7
- 2.Qe5#
- 2.Qe6#
- 1...Rd8
- 2.Qc6#
- 2.Qe5#
- 2.Qe6#
- 2.Qxd8#
- 1...Sc7
- 2.Bc5#
- 2.Be5#
- 2.Qc6#
- 2.Qd7#
- 2.Qe5#
- 1...Se7
- 2.Bc5#
- 2.Qd7#
- 2.Qxe7#
- 1...Sg7
- 2.Bc5#
- 2.Rd5#
- 2.Qd7#
- 2.Qe5#
- 2.Qe7#
- 1...Rxe8!
- threat
- 1.dxe8R?
- threat
- 2.Re6#
- 1...Sc7
- 2.Bc5#
- 2.Be5#
- 1...Se7
- 2.Bc5#
- 1...Sg7
- 2.Bc5#
- 2.Rd5#
- 1...Rxe8!
- threat
- 1.Bxc3+?
- Keys
- 1.Qa2!
- threat
- 2.Qd5#
- 1...Rc4
- 2.dxe8S#
- 1...Rc5
- 2.dxe8S#
- 1...Re4
- 2.dxc8S#
- 1...Re5
- 2.dxc8S#
- 1...Sc7
- 2.Qa3#
- 1...Se7
- 2.Qe6#
- threat
- 1.Qa2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 1
- REMOVED MATES = 6
- Sets
- R(f);N_GUARD::PXR(g)=S
- R(g);N_GUARD::PXR(f)=S
- S(c);OGATE,P_SPINS(c),XB(D)::R1(E)
- S(c);::QAR(B)+B(D),DCHECK
- S(d);OGATE,P_SPINS(d),XB(D)::R1(F)
- S(d);::QAR(B)+B(D),DCHECK
- Tries
- Try
- B(D);CHECK,XP(a)
- Vars
- K(e);P_SPINS(c),S_FLIGHT::QAB1(B)
- S(c);OGATE,P_SPINS(c)::R1(E)
- S(d);OGATE,P_SPINS(d)::R1(F)
- Refutation
- P(b);XQ(B)
- Try
- B(D);CHECK,XP(b)
- Vars
- K(e);P_SPINS(c),S_FLIGHT::QAB1(B)
- S(c);OGATE,P_SPINS(c)::R1(E)
- S(d);OGATE,P_SPINS(d)::R1(F)
- Refutation
- P(a);XQ(B)
- Try
- R(E);XS(c)
- Threat
- DUALS(2)
- Vars
- R(f);XS(J)::QAR(B)+B(D),DCHECK
- P(a);XQ(B)::R1(E)
- P(b);XQ(B)::R1(E)
- R(f);N_GUARD::PXR(g)=S
- Refutation
- R(g);XS(K)
- Try
- R(F);XS(d)
- Threat
- DUALS(2)
- Vars
- R(f);XS(J)::QAR(B)+B(D),DCHECK
- P(a);XQ(B)::R1(F)
- P(b);XQ(B)::R1(F)
- R(g);N_GUARD::PXR(f)=S
- Refutation
- R(g);XS(K)
- Try
- Q(B);
- Threat
- QAR1(B)
- Vars
- R(f);N_GUARD::PXR(g)=S
- R(g);N_GUARD::PXR(f)=S
- S(c);S_CUTR(f)::QAR1(B)
- S(d);N_GUARD,S_CUTR(g)::QAB(B)
- Refutation
- R(g);
- Try
- P(I);XR(f)
- Threat
- DUALS(3)
- Refutation
- R(g);XQ(I)
- Try
- P(I);XR(f)
- Threat
- R1(I)
- Vars
- R(g);N_GUARD::R(I)
- S(c);::QAR(B)+B(D),DCHECK
- Refutation
- R(g);XR(I)
- Try
- P(I);XR(g)
- Threat
- DUALS(3)
- Refutation
- R(f);XQ(I)
- Try
- P(I);XR(g)
- Threat
- R1(I)
- Vars
- S(d);::QAR(B)+B(D),DCHECK
- Refutation
- R(f);XR(I)
- Try
- Actual
- Q(B);
- Threat
- QAR1(B)
- Vars
- R(f);N_GUARD::PXR(g)=S
- R(g);N_GUARD::PXR(f)=S
- S(c);N_GUARD,S_CUTR(f)::QAB(B)
- S(d);S_CUTR(g)::QAR1(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).