MESON Chess Problem Database
Problem Display
PID: 232637 (5B1b/3p4/Kp4p1/8/1p1kNPp1/R3n1N1/BnPPr2r/7Q w - - 0 1)
Hoffmann, Fritz
Freie Presse, 1972
#2
10 + 11
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Ref2
- 2.dxe3#
- 1...Reg2
- 2.dxe3#
- 1...Rhf2
- 2.Qxh8#
- 1...Rhg2
- 2.Qxh8#
- 1...Rh3
- 2.Sxe2#
- 1...Rh4
- 2.Sxe2#
- 1...Rh5
- 2.Sxe2#
- 1...Rh6
- 2.Sxe2#
- 1...Rh7
- 2.Sxe2#
- 1...Bg7
- 2.Bxg7#
- 1...Sbd1
- 2.Rd3#
- 1...Sd3
- 2.Rxd3#
- 1...Sa4
- 2.Rd3#
- 1...Sbc4
- 2.Rd3#
- 1...b5
- 2.Bc5#
- 1...Ref2
- Tries
- 1.Sf2?
- threat
- 2.Sxe2#
- 2.Qe4#
- 1...Rxd2
- 2.Qe4#
- 1...Rexf2
- 2.Qe4#
- 2.dxe3#
- 1...Rxh1
- 2.Sxe2#
- 1...Rhxf2
- 2.Qe4#
- 2.Qxh8#
- 1...Sxc2
- 2.Sxe2#
- 2.Qd5#
- 1...b3
- 2.Qe4#
- 1...Re1
- 2.Qe4#
- 1...Rg2
- 2.Sxe2#
- 2.Qxh8#
- 1...Sed1
- 2.Sxe2#
- 2.Qd5#
- 1...Sf1
- 2.Sxe2#
- 2.Qd5#
- 1...Sg2
- 2.Sxe2#
- 1...Sec4
- 2.Sxe2#
- 1...Sd5
- 2.Sxe2#
- 2.Qxd5#
- 1...Sf5
- 2.Sxe2#
- 2.Qd5#
- 1...d5
- 2.Sxe2#
- 1...d6!
- threat
- 1.Sc3?
- threat
- 2.Sb5#
- 2.Qe4#
- 1...Rxh1
- 2.Scxe2#
- 2.Sb5#
- 2.Sgxe2#
- 1...Sxc2
- 2.Sb5#
- 2.Qd5#
- 1...bxc3
- 2.Qe4#
- 2.dxc3#
- 1...b3
- 2.Qe4#
- 1...Reg2
- 2.Sb5#
- 1...Rhg2
- 2.Sb5#
- 2.Qxh8#
- 1...Rh5
- 2.Scxe2#
- 2.Sgxe2#
- 2.Qe4#
- 1...Sed1
- 2.Sb5#
- 2.Qd5#
- 1...Sf1
- 2.Sb5#
- 2.Qd5#
- 1...Sg2
- 2.Scxe2#
- 2.Sb5#
- 2.Sgxe2#
- 1...Sec4
- 2.Sb5#
- 2.Qd5#
- 1...Sd5
- 2.Sb5#
- 2.Qxd5#
- 1...Sf5
- 2.Sb5#
- 2.Qd5#
- 1...b5
- 2.Sxb5#
- 2.Qe4#
- 1...d5
- 2.Sb5#
- 1...d6!
- threat
- 1.Sg5?
- threat
- 2.Qe4#
- 1...Rxh1
- 2.Sxe2#
- 1...Sxc2
- 2.Qd5#
- 1...d6
- 2.Se6#
- 1...Reg2
- 2.dxe3#
- 1...Rhg2
- 2.Qxh8#
- 1...Sed1
- 2.Qd5#
- 1...Sf1
- 2.Qd5#
- 1...Sg2
- 2.Sxe2#
- 1...Sd5
- 2.Qxd5#
- 1...Sf5
- 2.Qd5#
- 1...d5
- 2.Se6#
- 1...Sec4!
- threat
- 1.Sf2?
- Keys
- 1.Sc5!
- threat
- 2.Qe4#
- 1...Rxh1
- 2.Sxe2#
- 1...Sxc2
- 2.Qd5#
- 1...d6
- 2.Se6#
- 1...Reg2
- 2.dxe3#
- 1...Rhg2
- 2.Qxh8#
- 1...Sed1
- 2.Qd5#
- 1...Sf1
- 2.Qd5#
- 1...Sg2
- 2.Sxe2#
- 1...Sec4
- 2.Sb3#
- 1...Sd5
- 2.Qxd5#
- 1...Sf5
- 2.Qd5#
- 1...d5
- 2.Se6#
- threat
- 1.Sc5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 10
- REMOVED MATES = 13
- Sets
- R(b);N_GUARD::P(D),XS(d)
- R(c);OGATE::QAB(A),XB(k)
- R(c);N_GUARD::S(F),XR(b)
- B(k);N_GUARD::B(J),XB(k)
- S(a);N_GUARD::R1(E)
- S(a);N_GUARD::R1(E),XS(a)
- P(h);N_GUARD::B(J)
- Tries
- Try
- S(G);
- Threat
- DUALS(2)
- Vars
- R(b);XP(D)::QAR1(A)
- R(c);XQ(A)::S(F),XR(b)
- P(e);::QAR1(A)
- R(b);::QAR1(A)
- S(d);::S(F),XR(b)
- P(j);::S(F),XR(b)
- Refutation
- P(j);
- Try
- S(G);
- Threat
- DUALS(2)
- Vars
- P(e);::QAR1(A)
- R(b);::S(G)
- P(j);::S(G)
- Refutation
- P(j);
- Try
- S(G);
- Threat
- QAR1(A)
- Vars
- R(c);N_GUARD,XQ(A)::S(F),XR(b)
- S(d);N_GUARD,XP(C)::QAR1(A)
- P(j);N_GUARD::S(G)
- R(b);N_GUARD::P(D),XS(d)
- R(c);OGATE::QAB(A),XB(k)
- S(d);N_GUARD::QAR1(A)
- S(d);S_CUTR(c)::S(F),XR(b)
- S(d);N_GUARD::QAR1(A),XS(d)
- Refutation
- S(d);
- Try
- Actual
- S(G);
- Threat
- QAR1(A)
- Vars
- R(c);N_GUARD,XQ(A)::S(F),XR(b)
- S(d);N_GUARD,XP(C)::QAR1(A)
- P(j);N_GUARD::S(G)
- R(b);N_GUARD::P(D),XS(d)
- R(c);OGATE::QAB(A),XB(k)
- S(d);N_GUARD::QAR1(A)
- S(d);S_CUTR(c)::S(F),XR(b)
- S(d);SBLOCK::S(G)
- S(d);N_GUARD::QAR1(A),XS(d)
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).