MESON Chess Problem Database
Problem Display
PID: 69154 (8/8/p7/PPn1p3/1KPk1pp1/2Np4/1R1NPP2/B7 w - - 0 1)
Maeder, Thomas
Cyclone, 2000
#2
10 + 7
SOLUTION
- SOUND
- Sets
- 1...Sb3
- 2.Sxb3#
- 1...Sa4
- 2.Sb3#
- 1...Se4
- 2.Sb3#
- 1...Se6
- 2.Sb3#
- 1...Sb7
- 2.Sb3#
- 1...Sd7
- 2.Sb3#
- 1...f3
- 2.e3#
- 1...g3
- 2.Sf3#
- 1...axb5
- 2.Sxb5#
- 1...Sb3
- Tries
- 1.Scb1?
- threat
- 2.Ra2#
- 2.Rc2#
- 2.Rb3#
- 1...dxe2
- 2.Rb3#
- 1...Sb3
- 2.Rxb3#
- 1...Se4
- 2.Sb3#
- 1...Sa4!
- threat
- 1.Sd1?
- threat
- 2.Rb1#
- 2.Ra2#
- 2.Rc2#
- 2.Rb3#
- 1...dxe2
- 2.Rb3#
- 1...Sb3
- 2.Rxb3#
- 1...Se4
- 2.Sb3#
- 1...Sa4!
- threat
- 1.Sa2?
- threat
- 2.Rb1#
- 2.Rc2#
- 2.Rb3#
- 1...dxe2
- 2.Rb3#
- 1...Sb3
- 2.Rxb3#
- 1...Se4
- 2.Sb3#
- 1...Sa4!
- threat
- 1.Sa4?
- threat
- 2.Rb1#
- 2.Ra2#
- 2.Rc2#
- 2.Rb3#
- 1...dxe2
- 2.Rb3#
- 1...Sb3
- 2.Rxb3#
- 1...Se4
- 2.Sb3#
- 1...Sxa4!
- threat
- 1.Sce4?
- threat
- 2.Rb1#
- 2.Ra2#
- 2.Rc2#
- 2.Rb3#
- 1...Sxe4
- 2.Sb3#
- 1...dxe2
- 2.Rb3#
- 1...Sb3
- 2.Rxb3#
- 1...Sa4!
- threat
- 1.Sd5?
- threat
- 2.Rb1#
- 2.Ra2#
- 2.Rc2#
- 2.Rb3#
- 1...dxe2
- 2.Rb3#
- 1...Sb3
- 2.Rxb3#
- 1...Se4
- 2.Sb3#
- 1...Sa4!
- threat
- 1.Rb1?
- threat
- 2.Sd1#
- 2.Sa2#
- 2.Sa4#
- 2.Sce4#
- 2.Sd5#
- 1...e4
- 2.Sd1#
- 2.Sa2#
- 2.Sa4#
- 2.Scxe4#
- 2.Sd5#
- 1...Sa4
- 2.Sb3#
- 2.Sxa4#
- 1...Sb3
- 2.Sxb3#
- 1...Se4
- 2.Sb3#
- 2.Scxe4#
- 1...dxe2!
- threat
- 1.Ra2?
- threat
- 2.Scb1#
- 2.Sd1#
- 2.Sa4#
- 2.Sce4#
- 2.Sd5#
- 1...e4
- 2.Scb1#
- 2.Sd1#
- 2.Sa4#
- 2.Scxe4#
- 2.Sd5#
- 1...Sa4
- 2.Sb3#
- 2.Sxa4#
- 1...Sb3
- 2.Sxb3#
- 1...Se4
- 2.Sb3#
- 2.Scxe4#
- 1...dxe2!
- threat
- 1.Rc2?
- threat
- 2.Scb1#
- 2.Sd1#
- 2.Sa2#
- 2.Sa4#
- 2.Sce4#
- 2.Sd5#
- 1...e4
- 2.Scb1#
- 2.Sd1#
- 2.Sa2#
- 2.Sa4#
- 2.Scxe4#
- 2.Sd5#
- 1...Sa4
- 2.Sb3#
- 2.Sxa4#
- 1...Sb3
- 2.Sxb3#
- 1...Se4
- 2.Sb3#
- 2.Scxe4#
- 1...dxe2!
- threat
- 1.Scb1?
- Keys
- 1.Rb3!
- threat
- 2.Scb1#
- 2.Sd1#
- 2.Sa2#
- 2.Sa4#
- 2.Sce4#
- 2.Sd5#
- 1...Sxb3
- 2.Sxb3#
- 1...e4
- 2.Scb1#
- 2.Sd1#
- 2.Sa2#
- 2.Sa4#
- 2.Scxe4#
- 2.Sd5#
- 1...Sa4
- 2.Sxa4#
- 1...Se4
- 2.Scxe4#
- threat
- 1.Rb3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 0
- REMOVED MATES = 6
- Sets
- S(e);N_GUARD::S(C),XS(e)
- S(e);N_GUARD::S(C)
- P(c);N_GUARD::P(D)
- P(d);N_GUARD::S(C)
- P(g);XP(J)::S(F),XP(g)
- Tries
- Try
- S(F);
- Threat
- DUALS(3)
- Vars
- P(a);XP(D)::B(A)+R(B)
- S(e);::B(A)+R(B),XS(e)
- S(e);N_GUARD,SBLOCK::S(C)
- Refutation
- S(e);
- Try
- S(F);
- Threat
- DUALS(4)
- Vars
- P(a);XP(D)::B(A)+R(B)
- S(e);::B(A)+R(B),XS(e)
- S(e);N_GUARD,SBLOCK::S(C)
- Refutation
- S(e);
- Try
- S(F);
- Threat
- DUALS(3)
- Vars
- P(a);XP(D)::B(A)+R(B)
- S(e);::B(A)+R(B),XS(e)
- S(e);N_GUARD,SBLOCK::S(C)
- Refutation
- S(e);
- Try
- S(F);
- Threat
- DUALS(4)
- Vars
- P(a);XP(D)::B(A)+R(B)
- S(e);::B(A)+R(B),XS(e)
- S(e);N_GUARD,SBLOCK::S(C)
- Refutation
- S(e);XS(F)
- Try
- S(F);
- Threat
- DUALS(4)
- Vars
- S(e);N_GUARD,SBLOCK,XS(F)::S(C)
- P(a);XP(D)::B(A)+R(B)
- S(e);::B(A)+R(B),XS(e)
- Refutation
- S(e);
- Try
- S(F);
- Threat
- DUALS(4)
- Vars
- P(a);XP(D)::B(A)+R(B)
- S(e);::B(A)+R(B),XS(e)
- S(e);N_GUARD,SBLOCK::S(C)
- Refutation
- S(e);
- Try
- R(B);
- Threat
- DUALS(5)
- Vars
- S(e);N_GUARD::S(C),XS(e)
- Refutation
- P(a);XP(D)
- Try
- R(B);
- Threat
- DUALS(5)
- Vars
- S(e);N_GUARD::S(C),XS(e)
- Refutation
- P(a);XP(D)
- Try
- R(B);
- Threat
- DUALS(6)
- Vars
- S(e);N_GUARD::S(C),XS(e)
- Refutation
- P(a);XP(D)
- Try
- Actual
- R(B);
- Threat
- DUALS(6)
- Vars
- S(e);XR(B)::S(C),XS(e)
- S(e);::B(A)+S(F),XS(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).