MESON Chess Problem Database
Problem Display
PID: 51465 (3N1r2/3N4/3pp3/1P1k1B2/1Pn2Pp1/1nP5/5Q1p/5b1K w - - 0 1)
Mitchell, H
The Guardian, 1961
#2
9 + 9
SOLUTION
- SOUND
- Sets
- 1...Rf6
- 2.Sxf6#
- 1...Rxd8
- 2.Sf6#
- 1...Re8
- 2.Sf6#
- 1...Rg8
- 2.Sf6#
- 1...Rh8
- 2.Sf6#
- 1...Bg2+
- 2.Qxg2#
- 1...Sa1
- 2.Qd4#
- 1...Sc1
- 2.Qd4#
- 1...Sbd2
- 2.Qd4#
- 1...Sd4
- 2.Qxd4#
- 1...Sba5
- 2.Qd4#
- 1...Sc5
- 2.Qd4#
- 1...Sb2
- 2.Sb6#
- 1...Scd2
- 2.Sb6#
- 1...Sa3
- 2.Sb6#
- 1...Se3
- 2.Sb6#
- 1...Sca5
- 2.Sb6#
- 1...Se5
- 2.Sb6#
- 1...Sb6
- 2.Sxb6#
- 1...g3
- 2.Qf3#
- 1...Rf6
- Tries
- 1.Sxe6?
- threat
- 2.Sc7#
- 1...Bg2+
- 2.Qxg2#
- 1...Sb2
- 2.Sb6#
- 1...Scd2
- 2.Sb6#
- 1...Sa3
- 2.Sb6#
- 1...Se3
- 2.Sb6#
- 1...Sca5
- 2.Sb6#
- 1...Se5
- 2.Sb6#
- 1...Sb6
- 2.Sxb6#
- 1...Rc8
- 2.Sf6#
- 1...Rxf5!
- threat
- 1.Qe3?
- threat
- 2.Be4#
- 2.Bxe6#
- 2.Qe4#
- 2.Qxe6#
- 1...Rxf5
- 2.Qxe6#
- 1...Sxe3
- 2.Sb6#
- 1...exf5
- 2.Qe6#
- 1...Sb2
- 2.Sb6#
- 2.Bxe6#
- 2.Qe4#
- 2.Qxe6#
- 1...Scd2
- 2.Sb6#
- 2.Bxe6#
- 2.Qxe6#
- 1...Sa3
- 2.Sb6#
- 2.Bxe6#
- 2.Qe4#
- 2.Qxe6#
- 1...Sca5
- 2.Sb6#
- 2.Bxe6#
- 2.Qe4#
- 2.Qxe6#
- 1...Se5
- 2.Sb6#
- 2.Bxe6#
- 2.Qe4#
- 1...Sb6
- 2.Sxb6#
- 2.Bxe6#
- 2.Qe4#
- 2.Qxe6#
- 1...Rf6
- 2.Sxf6#
- 2.Be4#
- 2.Qe4#
- 1...Re8
- 2.Sf6#
- 2.Be4#
- 2.Qe4#
- 1...Bd3
- 2.Bxe6#
- 2.Qxe6#
- 1...Sbd2
- 2.Bxe6#
- 2.Qd4#
- 2.Qxe6#
- 1...Sd4
- 2.Be4#
- 2.Qxd4#
- 2.Qe4#
- 1...Sc5
- 2.Qd4#
- 1...e5
- 2.Be4#
- 2.Be6#
- 2.Qe4#
- 1...Bg2+!
- threat
- 1.Sxe6?
- Keys
- 1.Qa2!
- threat
- 2.Qa8#
- 1...Bg2+
- 2.Qxg2#
- 1...Rxd8
- 2.Sf6#
- 1...Sb2
- 2.Sb6#
- 1...Scd2
- 2.Sb6#
- 1...Sa3
- 2.Sb6#
- 1...Se3
- 2.Sb6#
- 1...Sca5
- 2.Sb6#
- 1...Se5
- 2.Sb6#
- 1...Sb6
- 2.Sxb6#
- 1...Sc5
- 2.Sb6#
- 1...Sd4
- 2.Sb6#
- 1...Sba5
- 2.Sb6#
- threat
- 1.Qa2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 3
- ADDED MATES = 0
- REMOVED MATES = 8
- Sets
- R(i);N_GUARD::S(H),XR(i)
- R(i);N_GUARD,XS(I)::S(H)
- R(i);N_GUARD::S(H)
- B(a);CHECK,N_GUARD::QAB(B),XB(a)
- S(c);N_GUARD::QAR1(B)
- S(c);N_GUARD::QAR1(B),XS(c)
- S(d);N_GUARD::S(H)
- S(d);N_GUARD::S(H),XS(d)
- P(e);N_GUARD::QAB(B)
- Tries
- Try
- S(I);XP(h)
- Threat
- S(I)
- Vars
- B(a);CHECK,N_GUARD::QAB(B),XB(a)
- S(d);N_GUARD::S(H)
- S(d);N_GUARD::S(H),XS(d)
- R(i);N_GUARD::S(H)
- Refutation
- R(i);XB(G)
- Try
- Q(B);
- Threat
- DUALS(4)
- Vars
- R(i);XB(G)::QAB1(B),XP(h)
- S(d);N_GUARD,XQ(B)::S(H)
- P(h);XB(G)::QAB1(B)
- S(c);N_GUARD::QAR1(B)
- Refutation
- B(a);CHECK
- Try
- Actual
- Q(B);
- Threat
- QAB(B)
- Vars
- B(a);CHECK,N_GUARD::QAB(B),XB(a)
- R(i);N_GUARD,XS(I)::S(H)
- S(d);N_GUARD,P_SPINS(c)::S(H)
- S(d);N_GUARD,P_SPINS(c)::S(H),XS(d)
- S(c);P_SPINS(d)::S(H)
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).