MESON Chess Problem Database
Problem Display
PID: 164007 (8/1n6/1Kp3N1/2p3n1/1BNk2r1/PB1Pp1pb/r1R1P3/q6Q w - - 0 1)
Ahues, Herbert Siegfried Oskar
Springaren, 1987
#2
10 + 11
SOLUTION
- SOUND
- Sets
- 1...Qc3
- 2.Bxc3#
- 1...Qb1
- 2.Bc3#
- 1...Qc1
- 2.Bc3#
- 1...Qd1
- 2.Bc3#
- 1...Qf1
- 2.Bc3#
- 1...Qg1
- 2.Bc3#
- 1...Rb2
- 2.Bc3#
- 1...Sa5
- 2.Bxc5#
- 1...Sd6
- 2.Bxc5#
- 1...Sd8
- 2.Bxc5#
- 1...Qc3
- Tries
- 1.Sb2?
- threat
- 2.Bc3#
- 2.Rc4#
- 1...Qxb2
- 2.Rc4#
- 1...Qxh1
- 2.Bc3#
- 1...cxb4
- 2.Rc4#
- 1...Qc1
- 2.Bc3#
- 1...Qe1
- 2.Rc4#
- 1...Re4
- 2.Bc3#
- 1...Bg2
- 2.Bc3#
- 2.Qh8#
- 1...Sf3
- 2.Bc3#
- 1...Sa5
- 2.Bc3#
- 2.Bxc5#
- 1...Sd6
- 2.Bc3#
- 2.Bxc5#
- 1...g2
- 2.Bc3#
- 1...c4
- 2.Bc3#
- 2.Rxc4#
- 1...Se4!
- threat
- 1.Sce5?
- threat
- 2.Sxc6#
- 2.Rc4#
- 1...Qxh1
- 2.Bc3#
- 1...Rxc2
- 2.Sxc6#
- 1...Qc3
- 2.Sxc6#
- 2.Bxc3#
- 1...Qc1
- 2.Sxc6#
- 2.Bc3#
- 1...Re4
- 2.Sxc6#
- 1...Sf3
- 2.Sxf3#
- 2.Sxc6#
- 1...Se4
- 2.Sf3#
- 2.Sxc6#
- 1...Sa5
- 2.Bxc5#
- 1...Sd6
- 2.Sxc6#
- 2.Bxc5#
- 1...Sd8
- 2.Bxc5#
- 2.Rc4#
- 1...g2
- 2.Sxc6#
- 1...c4
- 2.Sxc6#
- 2.Rxc4#
- 1...Bg2!
- threat
- 1.Sd6?
- threat
- 2.Sf5#
- 2.Rc4#
- 1...Qxh1
- 2.Sf5#
- 2.Bc3#
- 1...Rxc2
- 2.Sf5#
- 1...Sxd6
- 2.Bxc5#
- 1...Qc3
- 2.Sf5#
- 2.Bxc3#
- 1...Qc1
- 2.Sf5#
- 2.Bc3#
- 1...Qf1
- 2.Bc3#
- 2.Rc4#
- 1...Rf4
- 2.Rc4#
- 1...Rh4
- 2.Rc4#
- 1...Bg2
- 2.Sf5#
- 2.Qh8#
- 1...Sf3
- 2.Sf5#
- 1...Se4
- 2.Sf5#
- 1...Sa5
- 2.Sf5#
- 2.Bxc5#
- 1...g2
- 2.Sf5#
- 1...c4
- 2.Sf5#
- 2.Rxc4#
- 1...Re4!
- threat
- 1.Sb2?
- Keys
- 1.Sa5!
- threat
- 2.Sxc6#
- 2.Rc4#
- 1...Qxh1
- 2.Bc3#
- 1...Rxc2
- 2.Sxc6#
- 1...Sxa5
- 2.Bxc5#
- 1...Qc3
- 2.Sxc6#
- 2.Bxc3#
- 1...Qc1
- 2.Sxc6#
- 2.Bc3#
- 1...Re4
- 2.Sxc6#
- 1...Bg2
- 2.Qh8#
- 1...Sf3
- 2.Sxc6#
- 1...Se4
- 2.Sxc6#
- 1...Sd6
- 2.Sxc6#
- 2.Bxc5#
- 1...Sd8
- 2.Bxc5#
- 2.Rc4#
- 1...g2
- 2.Sxc6#
- 1...c4
- 2.Sxc6#
- 2.Rxc4#
- threat
- 1.Sa5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 7
- REMOVED MATES = 9
- Sets
- Q(a);N_GUARD::B(G),XQ(a)
- Q(a);N_GUARD::B(G)
- R(b);S_CUTQ(a)::B(G)
- S(k);N_GUARD::B(G),XP(h)
- Tries
- Try
- S(H);
- Threat
- DUALS(2)
- Vars
- Q(a);XS(H)::R1(B)
- Q(a);XQ(A)::B(G)
- P(h);XB(G)::R1(B)
- Q(a);::B(G)
- Q(a);::R1(B)
- R(g);::B(G)
- S(i);::B(G)
- P(d);::B(G)
- Refutation
- S(i);
- Try
- S(H);
- Threat
- DUALS(2)
- Vars
- Q(a);N_GUARD,XQ(A)::B(G)
- R(b);XR(B)::S(H),XP(j)
- R(g);::S(H),XP(j)
- S(k);N_GUARD::B(G),XP(h)
- P(d);::S(H),XP(j)
- Refutation
- B(e);
- Try
- S(H);
- Threat
- DUALS(2)
- Vars
- R(b);XR(B)::S(H)
- S(k);N_GUARD,XS(H)::B(G),XP(h)
- R(g);::R1(B)
- S(i);::S(H)
- P(d);::S(H)
- Refutation
- R(g);
- Try
- Actual
- S(H);
- Threat
- DUALS(2)
- Vars
- Q(a);N_GUARD,XQ(A)::B(G)
- R(b);XR(B)::S(H),XP(j)
- S(k);N_GUARD,XS(H)::B(G),XP(h)
- R(g);::S(H),XP(j)
- B(e);OGATE::QAB(A)
- S(i);::S(H),XP(j)
- P(d);::S(H),XP(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).