MESON Chess Problem Database
Problem Display
PID: 160837 (2b2R2/K6p/pR2P3/4kN1p/8/1BPp1P1n/1b1QP1n1/1q1r4 w - - 0 1)
Ahues, Herbert Siegfried Oskar
Die Schwalbe, 1974
#2
10 + 11
| 15148 | Sadier Collection | 2017 |
SOLUTION
- SOUND
- Sets
- 1...Bxe6
- 2.Rxe6#
- 1...Se1
- 2.Qe3#
- 1...Se3
- 2.Qxe3#
- 1...Sgf4
- 2.Qe3#
- 1...Sh4
- 2.Qe3#
- 1...a5
- 2.Rb5#
- 1...Bxe6
- Tries
- 1.Se3?
- threat
- 2.Rf5#
- 1...Bxc3
- 2.Qxc3#
- 1...Bxe6
- 2.Rxe6#
- 1...Sxe3
- 2.Qxe3#
- 1...dxe2
- 2.Sc4#
- 1...Sh4!
- threat
- 1.Sg3?
- threat
- 2.Rf5#
- 1...Bxc3
- 2.Qxc3#
- 1...Bxe6
- 2.Rxe6#
- 1...Se3
- 2.Qxe3#
- 1...Sh4
- 2.Qe3#
- 1...dxe2!
- threat
- 1.Sd4?
- threat
- 2.Rf5#
- 1...Bxe6
- 2.Rxe6#
- 1...dxe2
- 2.Sc6#
- 1...Se3
- 2.Qxe3#
- 1...Sh4
- 2.Qe3#
- 1...Bxc3!
- threat
- 1.Sh4?
- threat
- 2.Rf5#
- 1...Bxc3
- 2.Qxc3#
- 1...Bxe6
- 2.Rxe6#
- 1...Sxh4
- 2.Qe3#
- 1...Se3
- 2.Qxe3#
- 1...dxe2!
- threat
- 1.Sd6?
- threat
- 2.Rf5#
- 1...Bxc3
- 2.Qxc3#
- 1...dxe2
- 2.Sc4#
- 1...Se3
- 2.Qxe3#
- 1...Sh4
- 2.Qe3#
- 1...Bxe6!
- threat
- 1.Sh6?
- threat
- 2.Rf5#
- 1...Bxc3
- 2.Qxc3#
- 1...Bxe6
- 2.Rxe6#
- 1...Se3
- 2.Qxe3#
- 1...Sh4
- 2.Qe3#
- 1...dxe2!
- threat
- 1.Sg7?
- threat
- 2.Rf5#
- 1...Bxc3
- 2.Qxc3#
- 1...Bxe6
- 2.Rxe6#
- 1...Se3
- 2.Qxe3#
- 1...Sh4
- 2.Qe3#
- 1...dxe2!
- threat
- 1.f4+?
- 1...Ke4
- 2.Sg3#
- 2.Sd6#
- 2.Rb4#
- 1...Sgxf4
- 2.Qe3#
- 1...Shxf4!
- 1...Ke4
- 1.Se3?
- Keys
- 1.Se7!
- threat
- 2.Rf5#
- 1...Bxc3
- 2.Qxc3#
- 1...Bxe6
- 2.Rxe6#
- 1...dxe2
- 2.Sc6#
- 1...Se3
- 2.Qxe3#
- 1...Sh4
- 2.Qe3#
- threat
- 1.Se7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 3
- Sets
- B(k);OGATE,XP(H)::R1(G),XB(k)
- S(d);N_GUARD::QAR2(A)
- S(d);N_GUARD::QAR2(A),XS(d)
- P(i);N_GUARD::R(G)
- Tries
- Try
- S(F);
- Threat
- R1(J)
- Vars
- B(c);OGATE,XP(D)::QAB(A),XB(c)
- B(k);OGATE,XP(H)::R1(G),XB(k)
- S(d);OGATE,XS(F)::QAR2(A),XS(d)
- P(e);XP(B)::S(F)
- Refutation
- S(d);
- Try
- S(F);
- Threat
- R1(J)
- Vars
- B(c);OGATE,XP(D)::QAB(A),XB(c)
- B(k);OGATE,XP(H)::R1(G),XB(k)
- S(d);N_GUARD::QAR2(A),XS(d)
- S(d);N_GUARD::QAR2(A)
- Refutation
- P(e);XP(B)
- Try
- S(F);
- Threat
- R1(J)
- Vars
- B(k);OGATE,XP(H)::R1(G),XB(k)
- P(e);XP(B)::S(F)
- S(d);N_GUARD::QAR2(A),XS(d)
- S(d);N_GUARD::QAR2(A)
- Refutation
- B(c);XP(D)
- Try
- S(F);
- Threat
- R1(J)
- Vars
- B(c);OGATE,XP(D)::QAB(A),XB(c)
- B(k);OGATE,XP(H)::R1(G),XB(k)
- S(d);N_GUARD,XS(F)::QAR2(A)
- S(d);N_GUARD::QAR2(A),XS(d)
- Refutation
- P(e);XP(B)
- Try
- S(F);
- Threat
- R1(J)
- Vars
- B(c);OGATE,XP(D)::QAB(A),XB(c)
- P(e);XP(B)::S(F)
- S(d);N_GUARD::QAR2(A),XS(d)
- S(d);N_GUARD::QAR2(A)
- Refutation
- B(k);XP(H)
- Try
- S(F);
- Threat
- R1(J)
- Vars
- B(c);OGATE,XP(D)::QAB(A),XB(c)
- B(k);OGATE,XP(H)::R1(G),XB(k)
- S(d);N_GUARD::QAR2(A),XS(d)
- S(d);N_GUARD::QAR2(A)
- Refutation
- P(e);XP(B)
- Try
- S(F);
- Threat
- R1(J)
- Vars
- B(c);OGATE,XP(D)::QAB(A),XB(c)
- B(k);OGATE,XP(H)::R1(G),XB(k)
- S(d);N_GUARD::QAR2(A),XS(d)
- S(d);N_GUARD::QAR2(A)
- Refutation
- P(e);XP(B)
- Try
- P(E);CHECK
- Vars
- S(d);XP(E)::QAR2(A)
- Refutation
- S(f);XP(E)
- Try
- Actual
- S(F);
- Threat
- R1(J)
- Vars
- B(c);OGATE,XP(D)::QAB(A),XB(c)
- B(k);OGATE,XP(H)::R1(G),XB(k)
- P(e);XP(B)::S(F)
- S(d);N_GUARD::QAR2(A),XS(d)
- S(d);N_GUARD::QAR2(A)
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).