MESON Chess Problem Database
Problem Display
PID: 271288 (5r2/1pn1R3/bP1pbPpN/Kn1PkpB1/8/4PP2/2pQ4/2N5 w - - 0 1)
Schneider, M?
Die Schwalbe, 1932
#2
11 + 11
SOLUTION
- SOUND
- Sets
- 1...Rxf6
- 2.Bf4#
- 1...Rf7
- 2.Sxf7#
- 1...Ra8
- 2.Sf7#
- 1...Rb8
- 2.Sf7#
- 1...Rc8
- 2.Sf7#
- 1...Rd8
- 2.Sf7#
- 1...Re8
- 2.Sf7#
- 1...Rg8
- 2.Sf7#
- 1...Rh8
- 2.Sf7#
- 1...Sa3
- 2.Qd4#
- 1...Sc3
- 2.Qd4#
- 1...Sd4
- 2.Qxd4#
- 1...Sa7
- 2.Qd4#
- 1...Sxd5
- 2.Sd3#
- 1...Sa8
- 2.Rxe6#
- 1...Se8
- 2.Rxe6#
- 1...f4
- 2.exf4#
- 1...Rxf6
- Tries
- 1.Ka4?
- 1...Rxf6
- 2.Bf4#
- 1...Sxd5
- 2.Sd3#
- 1...Sd4
- 2.Qxd4#
- 1...Rf7
- 2.Sxf7#
- 1...Ra8
- 2.Sf7#
- 1...Rb8
- 2.Sf7#
- 1...Rc8
- 2.Sf7#
- 1...Rd8
- 2.Sf7#
- 1...Re8
- 2.Sf7#
- 1...Rg8
- 2.Sf7#
- 1...Rh8
- 2.Sf7#
- 1...Sa3
- 2.Qd4#
- 1...Sa7
- 2.Qd4#
- 1...Sa8
- 2.Rxe6#
- 1...Se8
- 2.Rxe6#
- 1...f4
- 2.exf4#
- 1...Sc3+!
- 1...Rxf6
- 1.Kb4?
- 1...Rxf6
- 2.Bf4#
- 1...Sd4
- 2.Qxd4#
- 1...Rf7
- 2.Sxf7#
- 1...Ra8
- 2.Sf7#
- 1...Rb8
- 2.Sf7#
- 1...Rc8
- 2.Sf7#
- 1...Rd8
- 2.Sf7#
- 1...Re8
- 2.Sf7#
- 1...Rg8
- 2.Sf7#
- 1...Rh8
- 2.Sf7#
- 1...Sa3
- 2.Qd4#
- 1...Sc3
- 2.Qd4#
- 1...Sa7
- 2.Qd4#
- 1...Sa8
- 2.Rxe6#
- 1...Se8
- 2.Rxe6#
- 1...f4
- 2.exf4#
- 1...Sxd5+!
- 1...Rxf6
- 1.Qd3?
- threat
- 2.f4#
- 1...Sd4
- 2.Qxd4#
- 1...f4
- 2.Sg4#
- 2.Qe4#
- 2.exf4#
- 1...Sxd5!
- threat
- 1.bxc7?
- threat
- 2.Rxe6#
- 1...Rxf6
- 2.Bf4#
- 1...Sxc7
- 2.Qd4#
- 1...Sd4
- 2.Qxd4#
- 1...Re8
- 2.Sf7#
- 1...b6+!
- threat
- 1.Ka4?
- Keys
- 1.e4!
- 1...Rxf6
- 2.Bf4#
- 1...Sxd5
- 2.Qxd5#
- 1...fxe4
- 2.f4#
- 1...Rf7
- 2.Sxf7#
- 1...Ra8
- 2.Sf7#
- 1...Rb8
- 2.Sf7#
- 1...Rc8
- 2.Sf7#
- 1...Rd8
- 2.Sf7#
- 1...Re8
- 2.Sf7#
- 1...Rg8
- 2.Sf7#
- 1...Rh8
- 2.Sf7#
- 1...Sa3
- 2.Qc3#
- 1...Sc3
- 2.Qxc3#
- 1...Sd4
- 2.Qf4#
- 1...Sa7
- 2.Qc3#
- 1...Sa8
- 2.Rxe6#
- 1...Se8
- 2.Rxe6#
- 1...f4
- 2.Sg4#
- 1...Rxf6
- 1.e4!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 6
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- R(k);SBLOCK,XP(I)::B(G)
- R(k);N_GUARD::S(J),XR(k)
- R(k);N_GUARD::S(J)
- S(b);N_GUARD::QAB1(B)
- S(b);N_GUARD::QAB1(B),XS(b)
- S(j);SBLOCK,XP(F)::S(A)
- S(j);N_GUARD::R1(K),XB(g)
- P(d);OGATE::P(C),XP(d)
- Tries
- Try
- K(E);P-FLIGHT
- Vars
- R(k);SBLOCK,XP(I)::B(G)
- S(j);SBLOCK,XP(F)::S(A)
- S(b);N_GUARD::QAB1(B),XS(b)
- R(k);N_GUARD::S(J),XR(k)
- R(k);N_GUARD::S(J)
- S(b);N_GUARD::QAB1(B)
- S(j);N_GUARD::R1(K),XB(g)
- P(d);OGATE::P(C),XP(d)
- Refutation
- S(b);CHECK
- Try
- K(E);S_FLIGHT
- Vars
- R(k);SBLOCK,XP(I)::B(G)
- S(b);N_GUARD::QAB1(B),XS(b)
- R(k);N_GUARD::S(J),XR(k)
- R(k);N_GUARD::S(J)
- S(b);N_GUARD::QAB1(B)
- S(j);N_GUARD::R1(K),XB(g)
- P(d);OGATE::P(C),XP(d)
- Refutation
- S(j);CHECK,XP(F)
- Try
- Q(B);
- Threat
- P(D)
- Vars
- S(b);N_GUARD::QAB1(B),XS(b)
- Refutation
- S(j);XP(F)
- Try
- P(H);XS(j)
- Threat
- R1(K),XB(g)
- Vars
- R(k);SBLOCK,XP(I)::B(G)
- S(b);N_GUARD,XP(H)::QAB1(B)
- S(b);N_GUARD::QAB1(B),XS(b)
- R(k);N_GUARD::S(J)
- Refutation
- P(i);CHECK
- Try
- Actual
- P(C);
- Vars
- R(k);SBLOCK,XP(I)::B(G)
- S(j);OGATE,XP(F)::QAR1(B),XS(j)
- P(d);SBLOCK,XP(C)::P(D)
- R(k);N_GUARD::S(J),XR(k)
- R(k);N_GUARD::S(J)
- S(b);N_GUARD::QAB(B)
- S(b);N_GUARD::QAB(B),XS(b)
- S(b);SBLOCK::QAB1(B)
- S(j);N_GUARD::R1(K),XB(g)
- P(d);N_GUARD::S(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).