MESON Chess Problem Database
Problem Display
PID: 248926 (1K3R2/3pQ1p1/3N1bP1/4N2p/Rp3P1p/3P2kP/4P3/3n1BB1 w - - 0 1)
Wirtanen, Erkki Aukusti
Die Schwalbe, 1971
#2
13 + 8
SOLUTION
- SOUND
- Sets
- 1...Bxe5
- 2.Qg5#
- 1...Bg5
- 2.Se4#
- 2.Qxg5#
- 1...Bxe7
- 2.Se4#
- 1...b3
- 2.Sf5#
- 1...Bxe5
- Tries
- 1.Sec4?
- 1...Kxf4
- 2.Qe5#
- 1...Bxe7
- 2.Se4#
- 1...Sb2
- 2.Qe3#
- 1...Ba1
- 2.Se4#
- 2.Qg5#
- 1...Bb2
- 2.Se4#
- 2.Qg5#
- 1...Bc3
- 2.Se4#
- 2.Qg5#
- 1...Bd4
- 2.Se4#
- 2.Qg5#
- 1...Be5
- 2.Qg5#
- 1...Bg5
- 2.Se4#
- 2.Qxg5#
- 1...Sf2
- 2.Qe3#
- 1...Sc3
- 2.Qe3#
- 1...Se3
- 2.Qxe3#
- 1...b3!
- 1...Kxf4
- 1.Sg4?
- threat
- 2.Bh2#
- 1...Kxf4
- 2.Qe5#
- 1...hxg4!
- threat
- 1.Sc6?
- 1...Kxf4
- 2.Qe5#
- 1...Bxe7
- 2.Se4#
- 1...Sb2
- 2.Qe3#
- 1...Ba1
- 2.Se4#
- 2.Qg5#
- 1...Bb2
- 2.Se4#
- 2.Qg5#
- 1...Bc3
- 2.Se4#
- 2.Qg5#
- 1...Bd4
- 2.Se4#
- 2.Qg5#
- 1...Be5
- 2.Qg5#
- 1...Bg5
- 2.Se4#
- 2.Qxg5#
- 1...Sf2
- 2.Qe3#
- 1...Sc3
- 2.Qe3#
- 1...Se3
- 2.Qxe3#
- 1...b3
- 2.Sf5#
- 1...dxc6!
- 1...Kxf4
- 1.Sef7?
- 1...Kxf4
- 2.Bh2#
- 1...Sb2
- 2.Qe3#
- 1...Ba1
- 2.Qg5#
- 1...Bb2
- 2.Qg5#
- 1...Bc3
- 2.Qg5#
- 1...Bd4
- 2.Qg5#
- 1...Be5
- 2.Qg5#
- 1...Bg5
- 2.Qxg5#
- 1...Sf2
- 2.Qe3#
- 1...Sc3
- 2.Qe3#
- 1...Se3
- 2.Qxe3#
- 1...b3
- 2.Sf5#
- 1...Bxe7!
- 1...Kxf4
- 1.Rxb4?
- threat
- 2.Sf5#
- 1...Bxe5
- 2.Qg5#
- 1...Se3!
- threat
- 1.Sec4?
- Keys
- 1.Sxd7!
- 1...Kxf4
- 2.Qe5#
- 1...Bxe7
- 2.Se4#
- 1...Sb2
- 2.Qe3#
- 1...Ba1
- 2.Se4#
- 2.Qg5#
- 1...Bb2
- 2.Se4#
- 2.Qg5#
- 1...Bc3
- 2.Se4#
- 2.Qg5#
- 1...Bd4
- 2.Se4#
- 2.Qg5#
- 1...Be5
- 2.Qg5#
- 1...Bg5
- 2.Se4#
- 2.Qxg5#
- 1...Sf2
- 2.Qe3#
- 1...Sc3
- 2.Qe3#
- 1...Se3
- 2.Qxe3#
- 1...b3
- 2.Sf5#
- 1...Kxf4
- 1.Sxd7!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 0
- Sets
- B(f);OGATE,P_PINS(I),XS(H)::QAR2(K)
- B(f);XQ(K)::S(I)
- P(c);::S(I)
- Tries
- Try
- S(H);
- Vars
- K(b);OGATEB,P_SPINB(f),S_FLIGHT,XP(G)::QAB1(K)
- B(f);XQ(K)::S(I)
- S(a);N_GUARD::QAR2(K)
- B(f);OGATE,P_PINS(I)::QAR2(K)
- S(a);N_GUARD::QAR2(K),XS(a)
- Refutation
- P(c);
- Try
- S(H);
- Threat
- B(B)
- Vars
- K(b);OGATEB,P_SPINB(f),P_SPINP(c),S_FLIGHT,XP(G)::QAB1(K)
- Refutation
- P(e);XS(H)
- Try
- S(H);
- Vars
- K(b);OGATEB,P_SPINB(f),P_SPINP(c),S_FLIGHT,XP(G)::QAB1(K)
- B(f);XQ(K)::S(I)
- S(a);N_GUARD::QAR2(K)
- B(f);OGATE,P_PINS(I)::QAR2(K)
- S(a);N_GUARD::QAR2(K),XS(a)
- P(c);::S(I)
- Refutation
- P(g);XS(H)
- Try
- S(H);
- Vars
- K(b);P_SPINP(c),S_FLIGHT,XP(G)::B(B)
- S(a);N_GUARD::QAR2(K)
- B(f);OGATE::QAR2(K)
- B(f);OGATE,P_PINS(I)::QAR2(K)
- B(f);OGATE::QAR2(K),XB(f)
- S(a);N_GUARD::QAR2(K),XS(a)
- P(c);::S(I)
- Refutation
- B(f);XQ(K)
- Try
- R(F);XP(c)
- Threat
- S(I)
- Vars
- B(f);OGATE,P_PINS(I),XS(H)::QAR2(K)
- Refutation
- S(a);
- Try
- Actual
- S(H);XP(g)
- Vars
- K(b);OGATEB,P_SPINB(f),P_SPINP(c),S_FLIGHT,XP(G)::QAB1(K)
- B(f);XQ(K)::S(I)
- S(a);N_GUARD::QAR2(K)
- B(f);OGATE,P_PINS(I)::QAR2(K)
- S(a);N_GUARD::QAR2(K),XS(a)
- P(c);::S(I)
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).