MESON Chess Problem Database
Problem Display
PID: 71943 (b7/b1pQ1p2/1pnn3p/4Np2/1PPkB2r/rp6/3P3B/2NKR3 w - - 0 1)
Anonymous
Source?, 0000
#2
10 + 13
SOLUTION
- SOUND
- Sets
- 1...Ra2
- 2.Sxb3#
- 1...Ra4
- 2.Sxb3#
- 1...Ra5
- 2.Sxb3#
- 1...Ra6
- 2.Sxb3#
- 1...fxe4
- 2.Se2#
- 1...Ra2
- Tries
- 1.Bd3?
- threat
- 2.Se2#
- 2.Sf3#
- 2.Bg1#
- 1...Rxh2
- 2.Sf3#
- 1...Sxb4
- 2.Bg1#
- 1...Sxe5
- 2.Bg1#
- 2.Bxe5#
- 1...Ra1
- 2.Sf3#
- 2.Bg1#
- 1...Rh3
- 2.Se2#
- 1...Re4
- 2.Sf3#
- 1...Rg4
- 2.Se2#
- 2.Sf3#
- 1...Sa5
- 2.Se2#
- 2.Bg1#
- 1...Se7
- 2.Se2#
- 2.Bg1#
- 1...Sb8
- 2.Se2#
- 2.Bg1#
- 1...Sd8
- 2.Se2#
- 2.Bg1#
- 1...f4
- 2.Sf3#
- 2.Bg1#
- 2.Re4#
- 1...Rf4!
- threat
- 1.Bd5?
- threat
- 2.Se2#
- 2.Sf3#
- 2.Bg1#
- 1...Rxh2
- 2.Sf3#
- 1...Sxb4
- 2.Bg1#
- 1...Sxe5
- 2.Bg1#
- 2.Bxe5#
- 1...Sxc4
- 2.Se2#
- 2.Sf3#
- 2.Bxc4#
- 1...Ra1
- 2.Sf3#
- 2.Bg1#
- 1...Rh3
- 2.Se2#
- 1...Re4
- 2.Sf3#
- 1...Rg4
- 2.Se2#
- 2.Sf3#
- 1...Se4
- 2.Se2#
- 2.Sf3#
- 2.Bxe4#
- 1...b2
- 2.Se2#
- 1...f4
- 2.Sf3#
- 2.Bg1#
- 1...Rf4!
- threat
- 1.Qe6?
- threat
- 2.Sf3#
- 2.Bg1#
- 2.Qd5#
- 1...Rxh2
- 2.Sf3#
- 2.Qd5#
- 1...Rxe4
- 2.Sf3#
- 2.Qd5#
- 1...Sxb4
- 2.Bg1#
- 1...Sxe5
- 2.Bg1#
- 2.Bxe5#
- 1...Sxc4
- 2.Sf3#
- 2.Qxc4#
- 2.Qd5#
- 1...Sxe4
- 2.Se2#
- 2.Sf3#
- 2.Qd5#
- 1...fxe4
- 2.Se2#
- 2.Qd5#
- 1...Rf4
- 2.Qd5#
- 1...Ra5
- 2.Sxb3#
- 2.Sf3#
- 2.Bg1#
- 1...Rh3
- 2.Qd5#
- 1...Rg4
- 2.Sf3#
- 2.Qd5#
- 1...Sa5
- 2.Sf3#
- 2.Bg1#
- 1...Se7
- 2.Sf3#
- 2.Bg1#
- 1...Sb8
- 2.Sf3#
- 2.Bg1#
- 1...Sd8
- 2.Sf3#
- 2.Bg1#
- 1...b2
- 2.Qd5#
- 1...fxe6!
- threat
- 1.Bd3?
- Keys
- 1.Qxc7!
- threat
- 2.Qxd6#
- 1...Sxb4
- 2.Sf3#
- 1...Sxe5
- 2.Bg1#
- 1...Sxc4
- 2.Sf3#
- 1...Sxe4
- 2.Se2#
- 1...Ra5
- 2.Sxb3#
- 1...Bb8
- 2.Qxb6#
- 1...Sa5
- 2.Sf3#
- 1...Se7
- 2.Sf3#
- 1...Sb8
- 2.Sf3#
- 1...Sd8
- 2.Sf3#
- 1...Sb5
- 2.Bg1#
- 1...Sb7
- 2.Bg1#
- 1...Sc8
- 2.Bg1#
- 1...Se8
- 2.Bg1#
- threat
- 1.Qxc7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 13
- REMOVED MATES = 4
- Sets
- R(a);N_GUARD::S(A),XP(b)
- P(e);SBLOCK,XB(H)::S(A)
- Tries
- Try
- B(H);
- Threat
- DUALS(3)
- Vars
- R(d);XB(E)::S(I)
- S(g);XP(F)::B(E)
- R(d);::S(A)
- R(d);::S(I)
- Refutation
- R(d);
- Try
- B(H);N_PINS(h)
- Threat
- DUALS(3)
- Vars
- R(d);XB(E)::S(I)
- S(g);XP(F)::B(E)
- R(d);::S(A)
- R(d);::S(I)
- P(b);::S(A)
- Refutation
- R(d);
- Try
- Q(J);N_PINS(h)
- Threat
- DUALS(3)
- Vars
- S(g);XP(F)::B(E)
- R(d);::QAR1(J)
- P(b);::QAR1(J)
- Refutation
- P(l);XQ(J)
- Try
- Actual
- Q(J);N_PINS(h),XP(k)
- Threat
- QAR2(J),XS(h)
- Vars
- S(g);XP(F)::S(I)
- S(g);SBLOCK,XS(I)::B(E)
- S(h);SBLOCK,XP(G)::S(I)
- S(h);SBLOCK,XB(H)::S(A)
- R(a);N_GUARD::S(A),XP(b)
- B(j);N_GUARD::QAB(J),XP(f)
- S(g);::S(I)
- S(h);::B(E)
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).