MESON Chess Problem Database
Problem Display
PID: 49242 (b7/1r6/Bn2QN2/1PBq4/1pk2KR1/1Np2R2/2P4r/5n2 w - - 0 1)
Savournin, Jacques
Comm., Het Belgisch Schaakbord (L'Echiquier Belge), 1979-1980
#2
10 + 9
| 5110 | Bekroonde Problemen | 2002 |
SOLUTION
- SOUND
- Sets
- 1...Se3
- 2.Kxe3#
- 1...Sg3
- 2.Kxg3#
- 1...Sa4
- 2.Qxd5#
- 2.b6#
- 1...Sd7
- 2.Qxd5#
- 2.b6#
- 1...Sc8
- 2.Qxd5#
- 2.b6#
- 1...Se3
- Tries
- 1.Sxd5?
- threat
- 2.Ke5#
- 2.Kf5#
- 2.Kg5#
- 2.Se3#
- 2.Sxb6#
- 2.Qe4#
- 1...Sxd5+
- 2.Ke5#
- 2.Kf5#
- 2.Kg5#
- 1...Rxc2
- 2.Sxb6#
- 1...Rd2
- 2.Se3#
- 2.Sxb6#
- 1...Re2
- 2.Se3#
- 2.Sxb6#
- 1...Rg2
- 2.Se3#
- 2.Sxb6#
- 2.Qe4#
- 1...Rh4
- 2.Se3#
- 2.Sxb6#
- 2.Qe4#
- 1...Rh5
- 2.Se3#
- 2.Sxb6#
- 2.Qe4#
- 1...Re7
- 2.Ke5#
- 2.Kf5#
- 2.Kg5#
- 2.Se3#
- 2.Sxb6#
- 1...Rg7
- 2.Se3#
- 2.Sxb6#
- 2.Qe4#
- 1...Sd2
- 2.Se3#
- 2.Sxb6#
- 1...Se3
- 2.Kxe3#
- 2.Sxe3#
- 2.Sxb6#
- 2.Qe4#
- 1...Sg3
- 2.Kxg3#
- 2.Se3#
- 2.Sxb6#
- 1...Sa4
- 2.Ke5#
- 2.Kf5#
- 2.Kg5#
- 2.Sxc3#
- 2.Se3#
- 2.Sxb4#
- 2.Sb6#
- 2.Sf6#
- 2.Sc7#
- 2.Se7#
- 2.Qe4#
- 2.b6#
- 1...Sd7
- 2.Kf5#
- 2.Kg5#
- 2.Sxc3#
- 2.Se3#
- 2.Sxb4#
- 2.Sb6#
- 2.Sf6#
- 2.Sc7#
- 2.Se7#
- 2.Qe4#
- 2.b6#
- 1...Sc8
- 2.Ke5#
- 2.Kf5#
- 2.Kg5#
- 2.Sxc3#
- 2.Se3#
- 2.Sxb4#
- 2.Sb6#
- 2.Sf6#
- 2.Sc7#
- 2.Se7#
- 2.Qe4#
- 2.b6#
- 1...Rf7+!
- threat
- 1.Bg1?
- threat
- 2.Sa5#
- 1...Se3
- 2.Kxe3#
- 1...Rf2!
- threat
- 1.Bf2?
- threat
- 2.Sa5#
- 1...Se3
- 2.Kxe3#
- 1...Rxf2!
- threat
- 1.Be3?
- threat
- 2.Sa5#
- 1...Sxe3
- 2.Kxe3#
- 1...Rxc2!
- threat
- 1.Bxb6?
- threat
- 2.Sa5#
- 2.Qxd5#
- 1...Qxe6
- 2.Sa5#
- 1...Rd2
- 2.Sa5#
- 1...Rh5
- 2.Sa5#
- 1...Ra7
- 2.Sa5#
- 1...Rc7
- 2.Sa5#
- 1...Rd7
- 2.Sa5#
- 1...Re7
- 2.Sa5#
- 1...Rf7
- 2.Sa5#
- 1...Rg7
- 2.Sa5#
- 1...Rbh7
- 2.Sa5#
- 1...Rb8
- 2.Sa5#
- 1...Se3
- 2.Kxe3#
- 2.Sa5#
- 1...Rxb6!
- threat
- 1.Qe2+?
- 1...Qd3
- 2.Ke5#
- 2.Kg5#
- 2.Qxd3#
- 1...Rxe2!
- 1...Qd3
- 1.Qe4+?
- 1...Qd4
- 2.Qxd4#
- 1...Qxe4+!
- 1...Qd4
- 1.Sxd5?
- Keys
- 1.Qc6!
- threat
- 2.Sa5#
- 1...Qxf3+
- 2.Kxf3#
- 1...Qe4+
- 2.Qxe4#
- 1...Qd2+
- 2.Be3#
- 1...Qd4+
- 2.Bxd4#
- 1...Qe5+
- 2.Kxe5#
- 1...Qf5+
- 2.Kxf5#
- 1...Qg5+
- 2.Kxg5#
- 1...Qd6+
- 2.Bxd6#
- 1...Qxc6
- 2.bxc6#
- 1...Qxc5
- 2.Qxc5#
- threat
- 1.Qc6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 10
- REMOVED MATES = 2
- Sets
- S(a);::R(E)+K(D),XS(a)
- Tries
- Try
- S(J);XQ(f)
- Threat
- DUALS(6)
- Vars
- R(b);XP(A)::QAB(I)+S(J),DCHECK,XS(g)
- Refutation
- R(h);CHECK
- Try
- B(G);
- Threat
- S(B)
- Vars
- S(a);::R(E)+K(D),XS(a)
- Refutation
- R(b);P_PINR(C)
- Try
- B(G);
- Threat
- S(B)
- Vars
- S(a);::R(E)+K(D),XS(a)
- Refutation
- R(b);P_PINR(C),XB(G)
- Try
- B(G);
- Threat
- S(B)
- Vars
- S(a);XB(G)::R(E)+K(D),XS(a)
- Refutation
- R(b);XP(A)
- Try
- B(G);XS(g)
- Threat
- DUALS(2)
- Vars
- Q(f);N_SPINQ(f),XQ(I)::S(B)
- R(b);::S(B)
- R(h);::S(B)
- R(h);P_PINS(J)::S(B)
- Refutation
- R(h);XB(G)
- Try
- Q(I);CHECK,N_PINQ(f)
- Refutation
- R(b);XQ(I)
- Try
- Q(I);CHECK,N_PINQ(f)
- Vars
- Q(f);N_GUARD,P_PINQ(I),P_SPINQ(f)::QAR1(I),XQ(f)
- Refutation
- Q(f);CHECK,XQ(I)
- Try
- Actual
- Q(I);N_PINQ(f)
- Threat
- S(B)
- Vars
- Q(f);CHECK,XR(C)::R(E)+K(D),XQ(f)
- Q(f);CHECK,OGATE::QAR2(I),XQ(f)
- Q(f);CHECK,N_GUARD::QAR(I)+B(G)
- Q(f);CHECK,N_GUARD::QAR(I)+B(G),XQ(f)
- Q(f);CHECK::R(E)+K(D),XQ(f)
- Q(f);OGATE,XQ(I)::B(H)+P(F),XQ(f)
- Q(f);OGATE,P_SPINQ(f),XB(G)::QAR1(I),XQ(f)
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).