MESON Chess Problem Database
Problem Display
PID: 37072 (n1rRr3/Kp1P4/1p4Pq/bp1N1R2/p2k4/Q4P2/7B/N4B2 w - - 0 1)
Cheylan, Yves
Comm., Die Schwalbe, 2001
#2
11 + 10
| 23 | Die Schwalbe | 2004 |
SOLUTION
- SOUND
- Sets
- 1...Rc2
- 2.Sxc2#
- 1...Rc5
- 2.Qd3#
- 1...Rb8
- 2.Sc2#
- 1...Rcxd8
- 2.Sc2#
- 1...Bc3
- 2.Sc2#
- 1...Sc7
- 2.Sc2#
- 1...Rc2
- Tries
- 1.Se3?
- threat
- 2.Rd5#
- 2.Qd3#
- 1...Rxe3
- 2.dxc8Q#
- 2.dxc8S#
- 2.dxc8B#
- 2.dxc8R#
- 1...Rc3
- 2.dxe8Q#
- 2.dxe8R#
- 1...Bc3
- 2.Sac2#
- 2.Sec2#
- 1...Qg5
- 2.Qd3#
- 1...Qh5
- 2.Qd3#
- 1...Rc5
- 2.Qd3#
- 1...Re5
- 2.Bxe5#
- 1...Sc7
- 2.Sac2#
- 2.Sec2#
- 2.Qd3#
- 1...Qxe3!
- threat
- 1.Sb4?
- threat
- 2.Rd5#
- 2.Qd3#
- 1...Bxb4
- 2.Qd3#
- 1...Rc3
- 2.dxe8Q#
- 2.dxe8R#
- 1...Re2
- 2.Qd3#
- 2.dxc8Q#
- 2.dxc8R#
- 1...Qd2
- 2.Rd5#
- 1...Qe3
- 2.Rd5#
- 1...Qg5
- 2.Qd3#
- 1...Qh5
- 2.Qd3#
- 1...Rc5
- 2.Qd3#
- 1...Re3
- 2.Rd5#
- 2.dxc8Q#
- 2.dxc8S#
- 2.dxc8B#
- 2.dxc8R#
- 1...Sc7
- 2.Sac2#
- 2.Sbc2#
- 2.Qd3#
- 1...Re5!
- threat
- 1.Sf4?
- threat
- 2.Rd5#
- 2.Qd3#
- 1...Qxf4
- 2.Qd3#
- 1...Rc3
- 2.dxe8Q#
- 2.dxe8R#
- 1...Re2
- 2.Qd3#
- 2.dxc8Q#
- 2.dxc8R#
- 1...Bc3
- 2.Sc2#
- 1...Qg5
- 2.Qd3#
- 1...Qh5
- 2.Qd3#
- 1...Rc5
- 2.Qd3#
- 1...Re3
- 2.Rd5#
- 2.dxc8Q#
- 2.dxc8S#
- 2.dxc8B#
- 2.dxc8R#
- 1...Sc7
- 2.Sc2#
- 2.Qd3#
- 1...Re5!
- threat
- 1.Sxb6?
- threat
- 2.Rd5#
- 2.Qd3#
- 1...Sxb6
- 2.Qd3#
- 1...Rc3
- 2.dxe8Q#
- 2.dxe8R#
- 1...Bc3
- 2.Sc2#
- 1...Qd2
- 2.Rd5#
- 1...Qe3
- 2.Rd5#
- 1...Qg5
- 2.Qd3#
- 1...Qh5
- 2.Qd3#
- 1...Rc5
- 2.Qxc5#
- 2.Qd3#
- 1...Re2
- 2.Rd5#
- 2.dxc8Q#
- 2.dxc8S#
- 2.dxc8B#
- 2.dxc8R#
- 1...Re3
- 2.Rd5#
- 2.dxc8Q#
- 2.dxc8S#
- 2.dxc8B#
- 2.dxc8R#
- 1...Re5
- 2.Bxe5#
- 1...Sc7
- 2.Sc2#
- 2.Qc5#
- 2.Qd3#
- 1...Bxb6+!
- threat
- 1.Sc7?
- threat
- 2.Sc2#
- 2.Sxb5#
- 2.Rd5#
- 2.Qd3#
- 1...Qxh2
- 2.Sxb5#
- 2.Rd5#
- 2.Qd3#
- 1...Rxc7
- 2.Qd3#
- 1...Sxc7
- 2.Sc2#
- 2.Qd3#
- 1...Bc3
- 2.Sc2#
- 1...Qc1
- 2.Sxb5#
- 2.Rd5#
- 2.Qd3#
- 1...Qd2
- 2.Sxb5#
- 2.Rd5#
- 1...Qe3
- 2.Sc2#
- 2.Sxb5#
- 2.Rd5#
- 1...Qg5
- 2.Sc2#
- 2.Sxb5#
- 2.Qd3#
- 1...Qh5
- 2.Sc2#
- 2.Sxb5#
- 2.Qd3#
- 1...Re3
- 2.Sc2#
- 2.Sxb5#
- 2.Rd5#
- 2.dxc8Q#
- 2.dxc8S#
- 2.dxc8B#
- 2.dxc8R#
- 1...Re5
- 2.Sc2#
- 2.Bxe5#
- 1...b4
- 2.Sc2#
- 2.Sb5#
- 2.Rd5#
- 2.Qd3#
- 1...Re2!
- threat
- 1.Se7?
- threat
- 2.Be5#
- 2.Rd5#
- 2.Qd3#
- 1...Qxh2
- 2.Rd5#
- 2.Qd3#
- 1...Rxe7
- 2.Qd3#
- 1...Bc3
- 2.Sc2#
- 1...Qd2
- 2.Be5#
- 2.Rd5#
- 1...Qe3
- 2.Rd5#
- 1...Qf4
- 2.Rd5#
- 2.Qd3#
- 1...Qg5
- 2.Be5#
- 2.Qd3#
- 1...Qg7
- 2.Bg1#
- 2.Rd5#
- 2.Qd3#
- 1...Qh5
- 2.Bg1#
- 2.Be5#
- 2.Qd3#
- 1...Qh8
- 2.Bg1#
- 2.Rd5#
- 2.Qd3#
- 1...Rc5
- 2.Qd3#
- 1...Bb4
- 2.Rd5#
- 2.Qd3#
- 1...Sc7
- 2.Sc2#
- 2.Be5#
- 2.Qd3#
- 1...b4
- 2.Rd5#
- 2.Qd3#
- 1...Rc3!
- threat
- 1.Be5+?
- 1...Kxd5
- 2.Qd6#
- 1...Rxe5!
- 1...Kxd5
- 1.Qb4+?
- 1...Rc4
- 2.Sc2#
- 1...Bxb4!
- 1...Rc4
- 1.Qxa4+?
- 1...Kc5
- 2.Se7#
- 1...Rc4
- 2.Sb3#
- 1...Bb4
- 2.Sb3#
- 1...b4
- 2.Sb3#
- 1...bxa4!
- 1...Kc5
- 1.dxc8Q?
- threat
- 2.Sc2#
- 2.Qd3#
- 1...Qxh2
- 2.Qd3#
- 1...Qc1
- 2.Qd3#
- 1...Qe3
- 2.Sc2#
- 1...Re2
- 2.Se3#
- 2.Sb4#
- 2.Sf4#
- 2.Sxb6#
- 2.Sf6#
- 2.Se7#
- 1...Re3
- 2.Sc2#
- 2.Sc3#
- 2.Sxe3#
- 2.Sb4#
- 2.Sf4#
- 2.Sxb6#
- 2.Sf6#
- 2.Sc7#
- 2.Se7#
- 1...Bc3
- 2.Sc2#
- 2.Qaxc3#
- 2.Qcxc3#
- 1...Sc7
- 2.Sc2#
- 1...Qd2!
- threat
- 1.dxc8R?
- threat
- 2.Sc2#
- 2.Qd3#
- 1...Qxh2
- 2.Qd3#
- 1...Qc1
- 2.Qd3#
- 1...Qe3
- 2.Sc2#
- 1...Re2
- 2.Se3#
- 2.Sb4#
- 2.Sf4#
- 2.Sxb6#
- 2.Sf6#
- 2.Se7#
- 1...Re3
- 2.Sc2#
- 2.Sc3#
- 2.Sxe3#
- 2.Sb4#
- 2.Sf4#
- 2.Sxb6#
- 2.Sf6#
- 2.Sc7#
- 2.Se7#
- 1...Bc3
- 2.Sc2#
- 2.Qxc3#
- 1...Sc7
- 2.Sc2#
- 1...Qd2!
- threat
- 1.Se3?
- Keys
- 1.Sf6!
- threat
- 2.Rd5#
- 2.Qd3#
- 1...Rc3
- 2.dxe8Q#
- 2.dxe8R#
- 1...Re2
- 2.dxc8Q#
- 2.dxc8R#
- 1...Bc3
- 2.Sc2#
- 1...Qd2
- 2.Rd5#
- 1...Qe3
- 2.Rd5#
- 1...Qg5
- 2.Qd3#
- 1...Qh5
- 2.Qd3#
- 1...Rc5
- 2.Qd3#
- 1...Re3
- 2.Rd5#
- 2.dxc8Q#
- 2.dxc8S#
- 2.dxc8B#
- 2.dxc8R#
- 1...Re5
- 2.Bxe5#
- 1...Sc7
- 2.Sc2#
- 2.Qd3#
- threat
- 1.Sf6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 4
- Sets
- R(i);N_GUARD::S(A),XR(i)
- R(i);SBLOCK::QAR1(D)
- R(i);N_GUARD::S(A)
- R(i);N_GUARD,XR(K)::S(A)
- B(c);S_CUTR(i)::S(A)
- S(h);S_CUTR(i)::S(A)
- Tries
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- R(i);N_GUARD::PXR(j)=Q
- Q(f);::QAR1(D)
- R(i);::QAR1(D)
- R(j);N_GUARD::B(C),XR(j)
- Refutation
- Q(f);XS(F)
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- B(c);XS(F)::QAR1(D)
- R(i);N_GUARD::PXR(j)=Q
- Q(f);::R1(G)
- Q(f);::QAR1(D)
- R(i);::QAR1(D)
- Refutation
- R(j);
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- Q(f);XS(F)::QAR1(D)
- R(i);N_GUARD::PXR(j)=Q
- B(c);S_CUTR(i)::S(A)
- Q(f);::QAR1(D)
- R(i);::QAR1(D)
- Refutation
- R(j);
- Try
- S(F);XP(e)
- Threat
- DUALS(2)
- Vars
- S(h);XS(F)::QAR1(D)
- R(i);N_GUARD::PXR(j)=Q
- B(c);S_CUTR(i)::S(A)
- Q(f);::R1(G)
- Q(f);::QAR1(D)
- R(j);N_GUARD::B(C),XR(j)
- Refutation
- B(c);CHECK,XS(F)
- Try
- S(F);
- Threat
- DUALS(4)
- Vars
- R(i);XS(F)::QAR1(D)
- B(c);::S(A)
- Refutation
- R(j);
- Try
- S(F);
- Threat
- DUALS(3)
- Vars
- R(j);XS(F)::QAR1(D)
- B(c);S_CUTR(i)::S(A)
- Q(f);::R1(G)
- R(i);::QAR1(D)
- Refutation
- R(i);
- Try
- B(C);CHECK
- Vars
- K(b);P-FLIGHT,XS(F)::QAR1(D)
- Refutation
- R(j);XB(C)
- Try
- Q(D);CHECK
- Vars
- R(i);P_SPINR(i)::S(A)
- Refutation
- B(c);XQ(D)
- Try
- Q(D);CHECK,XP(a)
- Vars
- K(b);S_FLIGHT::R(G)+S(F)
- R(i);P_SPINR(i)::S(A)
- B(c);P_SPINB(c)::S(A)
- P(d);P_SPINP(d)::S(A)
- Refutation
- P(d);XQ(D)
- Try
- P(J);XR(i)
- Threat
- DUALS(2)
- Vars
- Q(f);XB(C)::QAR1(D)
- Q(f);::QAR1(D)
- Q(f);::S(A)
- S(h);::S(A)
- Refutation
- Q(f);
- Try
- P(J);XR(i)
- Threat
- DUALS(2)
- Vars
- Q(f);XB(C)::QAR1(D)
- Q(f);::QAR1(D)
- Q(f);::S(A)
- S(h);::S(A)
- Refutation
- Q(f);
- Try
- Actual
- S(F);
- Threat
- DUALS(2)
- Vars
- R(i);N_GUARD::PXR(j)=Q
- R(j);N_GUARD::PXR(i)=Q
- B(c);S_CUTR(i)::S(A)
- Q(f);::R1(G)
- Q(f);::QAR1(D)
- R(i);::QAR1(D)
- R(j);N_GUARD::B(C),XR(j)
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).