MESON Chess Problem Database
Problem Display
PID: 237760 (K1B1N2b/4Pp2/R1P5/3k4/1P5Q/2B2P2/p1P1r3/3N1b2 w - - 0 1)
Ellerman, Arnoldo
Arbejder-Skak, 1958
#2
12 + 6
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Rxc2
- 2.Se3#
- 2.Qe4#
- 1...Rd2
- 2.Se3#
- 2.Qe4#
- 1...Rf2
- 2.Se3#
- 2.Qe4#
- 1...Rg2
- 2.Se3#
- 2.Qe4#
- 1...Rh2
- 2.Se3#
- 2.Qe4#
- 1...Re3
- 2.Sxe3#
- 1...Re4
- 2.Qxe4#
- 1...Re5
- 2.Qd4#
- 1...Bd4
- 2.Qxd4#
- 1...f6
- 2.Qd4#
- 1...Rxc2
- Tries
- 1.Bf6?
- threat
- 2.Sc3#
- 2.Qd4#
- 2.c4#
- 1...Rxc2
- 2.Se3#
- 2.Qd4#
- 2.Qe4#
- 1...Rxe7
- 2.Sc3#
- 2.Qd4#
- 1...Re4
- 2.Qxe4#
- 1...a1Q
- 2.c4#
- 1...a1B
- 2.c4#
- 1...Re1
- 2.Sc3#
- 2.Qd4#
- 1...Rd2
- 2.Sc3#
- 2.Se3#
- 2.Qe4#
- 1...Rf2
- 2.Sc3#
- 2.Se3#
- 2.Qd4#
- 2.Qe4#
- 1...Rg2
- 2.Sc3#
- 2.Se3#
- 2.Qd4#
- 2.Qe4#
- 1...Rh2
- 2.Sc3#
- 2.Se3#
- 2.Qd4#
- 2.Qe4#
- 1...Re3
- 2.Sxe3#
- 2.Qd4#
- 1...Re5
- 2.Sc3#
- 1...Re6
- 2.Sc3#
- 2.Qd4#
- 1...Bxf6!
- threat
- 1.Bxh8?
- threat
- 2.Sc3#
- 2.Qd4#
- 2.c4#
- 1...Rxc2
- 2.Se3#
- 2.Qd4#
- 2.Qe4#
- 1...Rxe7
- 2.Sc3#
- 2.Qd4#
- 1...Re4
- 2.Qxe4#
- 1...a1Q
- 2.c4#
- 1...a1B
- 2.c4#
- 1...Re1
- 2.Sc3#
- 2.Qd4#
- 1...Rd2
- 2.Sc3#
- 2.Se3#
- 2.Qe4#
- 1...Rf2
- 2.Sc3#
- 2.Se3#
- 2.Qd4#
- 2.Qe4#
- 1...Rg2
- 2.Sc3#
- 2.Se3#
- 2.Qd4#
- 2.Qe4#
- 1...Rh2
- 2.Sc3#
- 2.Se3#
- 2.Qd4#
- 2.Qe4#
- 1...Re3
- 2.Sxe3#
- 2.Qd4#
- 1...Re5
- 2.Sc3#
- 1...Re6
- 2.Sc3#
- 2.Qd4#
- 1...f6!
- threat
- 1.Qf4?
- threat
- 2.Sc7#
- 1...Re4
- 2.Qxe4#
- 1...Bd4
- 2.Qxd4#
- 1...Re5
- 2.Qd4#
- 1...Be5
- 2.Qxf7#
- 1...Rxe7!
- threat
- 1.Qh5+?
- 1...Kc4
- 2.Sd6#
- 2.Qc5#
- 1...Re5
- 2.Se3#
- 1...Be5
- 2.Qxf7#
- 1...f5!
- 1...Kc4
- 1.Bf6?
- Keys
- 1.Qf2!
- threat
- 2.Qc5#
- 1...Kc4
- 2.Qc5#
- 1...Rxf2
- 2.Se3#
- 1...Bd4
- 2.Qxd4#
- 1...Re3
- 2.Sxe3#
- threat
- 1.Qf2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 3
- Sets
- R(c);N_GUARD::S(A),XR(c)
- R(c);N_GUARD::QAB1(F),XR(c)
- R(c);S_CUTB(f)::QAR1(F)
- B(f);N_GUARD::QAR1(F),XB(f)
- P(e);S_CUTB(f)::QAR1(F)
- Tries
- Try
- B(C);
- Threat
- DUALS(3)
- Vars
- R(c);N_GUARD::QAB1(F),XR(c)
- P(b);P_PINR(G)::P(B)
- P(b);::P(B)
- R(c);::S(A)
- Refutation
- B(f);XB(C)
- Try
- B(C);XB(f)
- Threat
- DUALS(3)
- Vars
- R(c);N_GUARD::QAB1(F),XR(c)
- P(b);P_PINR(G)::P(B)
- P(b);::P(B)
- R(c);::S(A)
- Refutation
- P(e);
- Try
- Q(F);
- Threat
- S(L)
- Vars
- R(c);N_GUARD::QAB1(F),XR(c)
- B(f);N_GUARD::QAR1(F),XB(f)
- R(c);S_CUTB(f)::QAR1(F)
- B(f);S_CUTR(c)::QAB(F),XP(e)
- Refutation
- R(c);XP(I)
- Try
- Q(F);CHECK
- Vars
- R(c);P_SPINR(c)::S(A)
- B(f);P_SPINB(f),S_CUTR(c)::QAB(F),XP(e)
- Refutation
- P(e);P_SPINP(e)
- Try
- Actual
- Q(F);
- Threat
- QAR1(F)
- Vars
- K(d);S_FLIGHT::QAR1(F)
- R(c);N_GUARD,XQ(F)::S(A)
- B(f);N_GUARD::QAR1(F),XB(f)
- R(c);N_GUARD::S(A),XR(c)
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).