MESON Chess Problem Database
Problem Display
PID: 82049 (4N2K/7Q/b5p1/3nPPp1/2n1k1P1/4pR2/4P3/B2RbN2 w - - 0 1)
Ahues, Herbert Siegfried Oskar
Suomen Shakki, 1951
#2
11 + 8
| 6490 | yacpdb | 2009 |
| 15148 | Sadier Collection | 2016 |
SOLUTION
- SOUND
- Sets
- 1...Bd2
- 2.Sg3#
- 1...Bg3
- 2.Sxg3#
- 1...Bb4
- 2.Sg3#
- 1...Ba5
- 2.Sg3#
- 1...Sd2
- 2.Sd6#
- 1...Sa3
- 2.Sd6#
- 1...Sa5
- 2.Sd6#
- 1...Sxe5
- 2.Sd6#
- 2.Rd4#
- 1...Scb6
- 2.Sd6#
- 1...Sd6
- 2.Sxd6#
- 1...Sb4
- 2.Sf6#
- 1...Sf4
- 2.Sf6#
- 1...Sdb6
- 2.Sf6#
- 1...Sf6
- 2.Sxf6#
- 1...Sc7
- 2.Sf6#
- 1...Se7
- 2.Sf6#
- 1...gxf5
- 2.Qxf5#
- 1...Bd2
- Tries
- 1.Qh2?
- threat
- 2.Rd4#
- 1...Bd2
- 2.Sg3#
- 1...Bg3
- 2.Sxg3#
- 1...Sb2
- 2.Sd6#
- 1...Sd2
- 2.Sd6#
- 1...Sc3
- 2.Sf6#
- 1...Sf4
- 2.Sf6#
- 1...Bc3!
- threat
- 1.Qa7?
- threat
- 2.Qd4#
- 1...Scb6
- 2.Sd6#
- 1...Sdb6
- 2.Sf6#
- 1...Bc3!
- threat
- 1.Qb7?
- threat
- 2.Sf6#
- 2.Qxd5#
- 2.Qb1#
- 1...Sxe5
- 2.Sd6#
- 2.Sf6#
- 2.Rd4#
- 2.Qxd5#
- 1...Bc3
- 2.Qxd5#
- 1...Sb2
- 2.Qxd5#
- 1...Bd2
- 2.Sg3#
- 2.Sf6#
- 2.Qb1#
- 1...Bb4
- 2.Sg3#
- 2.Sf6#
- 2.Qxd5#
- 1...Bb5
- 2.Sf6#
- 2.Qxd5#
- 1...Sd2
- 2.Sd6#
- 2.Sf6#
- 1...Sa3
- 2.Sd6#
- 2.Sf6#
- 2.Qxd5#
- 1...Sa5
- 2.Sd6#
- 2.Sf6#
- 2.Qxd5#
- 1...Sb6
- 2.Sd6#
- 2.Sf6#
- 1...Sd6
- 2.Sxd6#
- 2.Sf6#
- 2.Qxd5#
- 1...Bxb7!
- threat
- 1.Qc7?
- threat
- 2.Rd4#
- 1...Sxc7
- 2.Sf6#
- 1...Bd2
- 2.Sg3#
- 1...Bc3
- 2.Sg3#
- 1...Sd2
- 2.Sd6#
- 1...Sd6
- 2.Sxd6#
- 1...Sc3
- 2.Sf6#
- 1...Sb2!
- threat
- 1.Qd7?
- threat
- 2.Qxd5#
- 1...Sc3
- 2.Qd4#
- 1...Bd2
- 2.Sg3#
- 1...Sd2
- 2.Sd6#
- 1...Scb6
- 2.Sd6#
- 1...Sd6
- 2.Sxd6#
- 1...Sb4
- 2.Sf6#
- 2.Qd4#
- 1...Sf4
- 2.Sf6#
- 2.Qd4#
- 1...Sdb6
- 2.Sf6#
- 2.Qd3#
- 2.Qd4#
- 1...Sf6
- 2.Sxf6#
- 2.Qd3#
- 2.Qd4#
- 1...Sc7
- 2.Sf6#
- 2.Qd3#
- 2.Qd4#
- 1...Se7
- 2.Sf6#
- 2.Qd3#
- 2.Qd4#
- 1...Bb7!
- threat
- 1.Qg7?
- threat
- 2.Rd4#
- 1...Bd2
- 2.Sg3#
- 1...Bc3
- 2.Sg3#
- 1...Sb2
- 2.Sd6#
- 1...Sd2
- 2.Sd6#
- 1...Sf6
- 2.Sxf6#
- 1...Sc3!
- threat
- 1.Qh2?
- Keys
- 1.Qe7!
- threat
- 2.Rd4#
- 1...Sxe7
- 2.Sf6#
- 1...Bd2
- 2.Sg3#
- 1...Bc3
- 2.Sg3#
- 1...Sb2
- 2.Sd6#
- 1...Sd2
- 2.Sd6#
- 1...Sc3
- 2.Sf6#
- threat
- 1.Qe7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 13
- Sets
- B(a);N_GUARD::S(C)
- B(a);N_GUARD::S(C),XB(a)
- S(c);N_GUARD::S(J)
- S(c);N_GUARD::S(J),XS(c)
- S(e);N_GUARD::S(J)
- S(e);N_GUARD::S(J),XS(e)
- P(h);OGATE,P_SPINP(h),XP(H)::QAB1(I),XP(h)
- Tries
- Try
- Q(I);
- Threat
- R1(B)
- Vars
- B(a);N_GUARD::S(C)
- B(a);N_GUARD::S(C),XB(a)
- S(c);N_GUARD::S(J)
- S(e);N_GUARD::S(J)
- Refutation
- B(a);P_PINP(G)
- Try
- Q(I);
- Threat
- QAR1(I)
- Vars
- S(c);N_GUARD::S(J)
- S(e);N_GUARD::S(J)
- Refutation
- B(a);P_PINP(G)
- Try
- Q(I);P_PINS(e)
- Threat
- DUALS(3)
- Vars
- B(a);P_PINP(G)::QAB1(I),XS(e)
- S(c);::QAB1(I),XS(e)
- Refutation
- B(g);N_SPINS(e),XQ(I)
- Try
- Q(I);
- Threat
- R1(B)
- Vars
- S(e);N_GUARD,XQ(I)::S(J)
- B(a);N_GUARD::S(C)
- B(a);N_GUARD,P_PINP(G)::S(C)
- S(c);N_GUARD::S(J)
- S(c);N_GUARD::S(J),XS(c)
- S(e);N_GUARD::S(J)
- Refutation
- S(c);
- Try
- Q(I);
- Threat
- QAB1(I),XS(e)
- Vars
- S(e);OGATE::QAR1(I)
- B(a);N_GUARD::S(C)
- S(c);N_GUARD::S(J)
- S(c);N_GUARD::S(J),XS(c)
- Refutation
- B(g);
- Try
- Q(I);
- Threat
- R1(B)
- Vars
- B(a);N_GUARD::S(C)
- S(c);N_GUARD::S(J)
- S(e);N_GUARD::S(J),XS(e)
- Refutation
- S(e);
- Try
- Actual
- Q(I);
- Threat
- R1(B)
- Vars
- S(e);N_GUARD,XQ(I)::S(J)
- B(a);N_GUARD::S(C)
- B(a);N_GUARD,P_PINP(G)::S(C)
- S(c);N_GUARD::S(J)
- S(e);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).