MESON Chess Problem Database
Problem Display
PID: 186109 (1K1B4/3P1p2/k2N1R1n/2pP4/1pp5/Np5Q/5r2/R3r1b1 w - - 0 1)
Kraemer, Adolf Herrmann Rudolf Ferdinand
Basler Nachrichten, 1931
#2
9 + 10
| 15601 | Albrecht-Leiss-Degener Collection | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Rxa1
- 2.Sf5#
- 1...Rb1
- 2.Sf5#
- 1...Rc1
- 2.Sf5#
- 1...Rd1
- 2.Sf5#
- 1...Ref1
- 2.Sf5#
- 1...Ree2
- 2.Sc2#
- 1...Re3
- 2.Sc2#
- 1...Re4
- 2.Sc2#
- 1...Re5
- 2.Sc2#
- 1...Re6
- 2.Sc2#
- 1...Re7
- 2.Sc2#
- 1...Re8
- 2.Sc2#
- 1...Rff1
- 2.Sb1#
- 1...Ra2
- 2.Se4#
- 1...Rb2
- 2.Se4#
- 1...Rc2
- 2.Se4#
- 1...Rd2
- 2.Se4#
- 1...Rfe2
- 2.Se4#
- 1...Rg2
- 2.Se4#
- 1...Rh2
- 2.Se4#
- 1...Rf3
- 2.Sb1#
- 1...Rf4
- 2.Sb1#
- 1...Rf5
- 2.Sb1#
- 1...Rxf6
- 2.Sb1#
- 1...bxa3
- 2.Rxa3#
- 1...Rxa1
- Tries
- 1.Sb7+?
- 1...Re6
- 2.Sxc5#
- 1...Rxf6!
- 1...Re6
- 1.Sxf7+?
- 1...Re6
- 2.Rxe6#
- 2.Qxe6#
- 1...Rxf6!
- 1...Re6
- 1.Qg4?
- threat
- 2.Qxc4#
- 1...Rc1
- 2.Sf5#
- 1...Re4
- 2.Sc2#
- 1...Rc2
- 2.Se4#
- 1...Rf4
- 2.Sb1#
- 1...c3
- 2.Qc4#
- 1...Sxg4!
- threat
- 1.Qxb3?
- threat
- 2.Qa4#
- 2.Qxc4#
- 1...Rc1
- 2.Sf5#
- 2.Qa4#
- 1...Re4
- 2.Sc2#
- 2.Qa4#
- 1...Rc2
- 2.Se4#
- 2.Qa4#
- 1...Rf4
- 2.Sb1#
- 2.Qa4#
- 1...c3
- 2.Qa4#
- 2.Qc4#
- 1...cxb3!
- threat
- 1.Qc3?
- threat
- 2.Qxc4#
- 1...Rc1
- 2.Sf5#
- 1...Re4
- 2.Sc2#
- 1...Rc2
- 2.Se4#
- 1...Rf4
- 2.Sb1#
- 1...bxc3!
- threat
- 1.Qd3?
- threat
- 2.Qxc4#
- 1...Rc1
- 2.Sf5#
- 1...Re4
- 2.Sc2#
- 1...Rc2
- 2.Se4#
- 1...Rf4
- 2.Sb1#
- 1...cxd3!
- threat
- 1.Qh4?
- threat
- 2.Qxc4#
- 1...Rc1
- 2.Sf5#
- 1...Re4
- 2.Sc2#
- 1...Rc2
- 2.Se4#
- 1...Rf4
- 2.Sb1#
- 1...c3
- 2.Qc4#
- 1...Sg4!
- threat
- 1.Sb7+?
- Keys
- 1.Qf1!
- threat
- 2.Qxc4#
- 1...Rexf1
- 2.Sf5#
- 1...Rfxf1
- 2.Sb1#
- 1...Rc1
- 2.Sf5#
- 1...Ree2
- 2.Sc2#
- 1...Re4
- 2.Sc2#
- 1...Rc2
- 2.Se4#
- 1...Rfe2
- 2.Se4#
- 1...Rf4
- 2.Sb1#
- threat
- 1.Qf1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 17
- Sets
- R(a);N_GUARD,XR(A)::R(F)+S(E)
- R(a);N_GUARD::R(F)+S(E)
- R(a);N_GUARD::R(A)+S(B)
- R(a);N_GUARD,P_PINB(I)::R(A)+S(B)
- R(c);N_GUARD::R(A)+S(B)
- R(c);N_GUARD::R(F)+S(E)
- R(c);N_GUARD,XR(F)::R(A)+S(B)
- P(e);OGATE,P_SPINP(e),XS(B)::R(A),XP(e)
- Tries
- Try
- S(E);CHECK
- Vars
- R(a);P_SPINR(a)::S(E),XP(g)
- Refutation
- R(c);XR(F)
- Try
- S(E);CHECK,XP(j)
- Refutation
- R(c);XR(F)
- Try
- Q(C);
- Threat
- QAB(C),XP(f)
- Vars
- R(a);N_GUARD::R(F)+S(E)
- R(a);N_GUARD::R(A)+S(B)
- R(c);N_GUARD::R(F)+S(E)
- R(c);N_GUARD::R(A)+S(B)
- P(f);::QAB(C)
- Refutation
- S(i);XQ(C)
- Try
- Q(C);XP(d)
- Threat
- DUALS(2)
- Refutation
- P(f);XQ(C)
- Try
- Q(C);
- Threat
- QAB(C),XP(f)
- Vars
- R(a);N_GUARD::R(F)+S(E)
- R(a);N_GUARD::R(A)+S(B)
- R(c);N_GUARD::R(F)+S(E)
- R(c);N_GUARD::R(A)+S(B)
- Refutation
- P(e);XQ(C)
- Try
- Q(C);P_PINP(f)
- Threat
- QAB(C),XP(f)
- Vars
- R(a);N_GUARD::R(F)+S(E)
- R(a);N_GUARD::R(A)+S(B)
- R(c);N_GUARD::R(F)+S(E)
- R(c);N_GUARD::R(A)+S(B)
- Refutation
- P(f);N_SPINP(f),XQ(C)
- Try
- Q(C);
- Threat
- QAB(C),XP(f)
- Vars
- R(a);N_GUARD::R(F)+S(E)
- R(a);N_GUARD::R(A)+S(B)
- R(c);N_GUARD::R(F)+S(E)
- R(c);N_GUARD::R(A)+S(B)
- P(f);::QAB(C)
- Refutation
- S(i);
- Try
- Actual
- Q(C);P_PINP(f)
- Threat
- QAB(C),XP(f)
- Vars
- R(a);N_GUARD,N_SPINP(f),XQ(C)::R(F)+S(E)
- R(c);N_GUARD,N_SPINP(f),XQ(C)::R(A)+S(B)
- R(a);N_GUARD::R(F)+S(E)
- R(a);N_GUARD,N_SPINP(f)::R(A)+S(B)
- R(a);N_GUARD::R(A)+S(B)
- R(c);N_GUARD::R(F)+S(E)
- R(c);N_GUARD,N_SPINP(f)::R(F)+S(E)
- R(c);N_GUARD::R(A)+S(B)
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).