MESON Chess Problem Database
Problem Display
PID: 233872 (5n1Q/b2pp3/3P3p/1N6/K1P1kNPn/R5B1/1p1Pp3/5B2 w - - 0 1)
Ellerman, Arnoldo
Skakbladet, 1948
#2
11 + 9
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Be3
- 2.Rxe3#
- 1...Bd4
- 2.Qxd4#
- 1...Bb8
- 2.Re3#
- 2.Qd4#
- 1...Sg2
- 2.Bxg2#
- 1...Sf3
- 2.Sc3#
- 1...Sf5
- 2.Bg2#
- 1...Shg6
- 2.Bg2#
- 1...exd6
- 2.Sxd6#
- 1...Be3
- Tries
- 1.Sg2?
- threat
- 2.Qe5#
- 1...exd6
- 2.Sxd6#
- 1...Be3
- 2.Rxe3#
- 1...Bd4
- 2.Qxd4#
- 1...Sf3
- 2.d3#
- 1...Sfg6
- 2.Qa8#
- 1...e5
- 2.Qxe5#
- 1...Shg6!
- threat
- 1.Sh3?
- threat
- 2.Qe5#
- 1...exd6
- 2.Sxd6#
- 1...Be3
- 2.Rxe3#
- 1...Bd4
- 2.Qxd4#
- 1...Shg6
- 2.Bg2#
- 1...Sfg6
- 2.Qa8#
- 1...e5
- 2.Qxe5#
- 1...Sf3!
- threat
- 1.Sd5?
- threat
- 2.Qe5#
- 1...exd6
- 2.Sxd6#
- 2.Sf6#
- 1...Be3
- 2.Rxe3#
- 1...Bd4
- 2.Qxd4#
- 1...Sf3
- 2.d3#
- 1...Shg6
- 2.Bg2#
- 1...e5
- 2.Sf6#
- 2.Qxe5#
- 1...Sfg6!
- threat
- 1.Sh5?
- threat
- 2.Qe5#
- 1...exd6
- 2.Sxd6#
- 2.Sf6#
- 1...Be3
- 2.Rxe3#
- 1...Bd4
- 2.Qxd4#
- 1...Shg6
- 2.Bg2#
- 1...Sfg6
- 2.Qa8#
- 1...e5
- 2.Sf6#
- 2.Qxe5#
- 1...Sf3!
- threat
- 1.Se6?
- threat
- 2.Qe5#
- 1...exd6
- 2.Sxd6#
- 1...Be3
- 2.Rxe3#
- 1...Bd4
- 2.Qxd4#
- 1...Shg6
- 2.Bg2#
- 1...Sfg6
- 2.Qa8#
- 1...Sf3!
- threat
- 1.Sg6?
- threat
- 2.Qe5#
- 1...Shxg6
- 2.Bg2#
- 1...Sfxg6
- 2.Qa8#
- 1...exd6
- 2.Sxd6#
- 1...Be3
- 2.Rxe3#
- 1...Bd4
- 2.Qxd4#
- 1...e5
- 2.Qxe5#
- 1...Sf3!
- threat
- 1.Bg2+?
- 1...Sf3
- 2.Sc3#
- 2.Bxf3#
- 1...Sxg2!
- 1...Sf3
- 1.Rd3?
- threat
- 2.Sc3#
- 1...Be3
- 2.Rxe3#
- 1...Bd4
- 2.Qxd4#
- 1...b1S!
- threat
- 1.d4?
- threat
- 2.Qe5#
- 1...Bxd4
- 2.Qxd4#
- 1...exd6
- 2.Sxd6#
- 1...Shg6
- 2.Bg2#
- 1...Sfg6
- 2.Qa8#
- 1...e5
- 2.Qxe5#
- 1...Sf3!
- threat
- 1.c5?
- threat
- 2.Re3#
- 2.Qd4#
- 1...exf1S
- 2.Qd4#
- 1...e1Q
- 2.Qd4#
- 1...e1R
- 2.Qd4#
- 1...Sf3
- 2.Sc3#
- 2.Re3#
- 1...Sg2
- 2.Bxg2#
- 2.Qd4#
- 1...Sf5
- 2.Bg2#
- 1...Se6
- 2.Re3#
- 1...e5
- 2.Re3#
- 1...Bxc5!
- threat
- 1.dxe7?
- threat
- 2.Sd6#
- 1...Be3
- 2.Rxe3#
- 1...Bb8
- 2.Re3#
- 2.Qd4#
- 1...Sf5
- 2.Bg2#
- 1...d6
- 2.Sxd6#
- 1...Bc5!
- threat
- 1.Sg2?
- Keys
- 1.Sxe2!
- threat
- 2.Qe5#
- 1...exd6
- 2.Sxd6#
- 1...Be3
- 2.Rxe3#
- 1...Bd4
- 2.Qxd4#
- 1...Sf3
- 2.Sec3#
- 1...Shg6
- 2.Bg2#
- 1...Sfg6
- 2.Qa8#
- 1...e5
- 2.Qxe5#
- threat
- 1.Sxe2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 2
- Sets
- B(f);N_GUARD::R1(C),XB(f)
- B(f);N_GUARD::QAR1(K),XB(f)
- S(d);N_GUARD::B(A),XS(d)
- S(d);SBLOCK::S(I)
- S(d);N_GUARD::B(A)
- P(h);XP(J)::S(I),XP(h)
- Tries
- Try
- S(G);
- Threat
- QAR1(K)
- Vars
- P(h);XP(J)::S(I),XP(h)
- B(f);N_GUARD::R1(C),XB(f)
- B(f);N_GUARD::QAR1(K),XB(f)
- S(d);SBLOCK::P(B)
- S(i);OGATE::QAB(K)
- P(h);::QAR1(K),XP(h)
- Refutation
- S(d);
- Try
- S(G);
- Threat
- QAR1(K)
- Vars
- P(h);XP(J)::S(I),XP(h)
- B(f);N_GUARD::R1(C),XB(f)
- B(f);N_GUARD::QAR1(K),XB(f)
- S(d);N_GUARD::B(A)
- S(i);OGATE::QAB(K)
- P(h);::QAR1(K),XP(h)
- Refutation
- S(d);
- Try
- S(G);
- Threat
- QAR1(K)
- Vars
- B(f);N_GUARD::R1(C),XB(f)
- B(f);N_GUARD::QAR1(K),XB(f)
- S(d);SBLOCK::P(B)
- S(d);N_GUARD::B(A)
- Refutation
- S(i);
- Try
- S(G);
- Threat
- QAR1(K)
- Vars
- B(f);N_GUARD::R1(C),XB(f)
- B(f);N_GUARD::QAR1(K),XB(f)
- S(d);N_GUARD::B(A)
- S(i);OGATE::QAB(K)
- Refutation
- S(d);
- Try
- S(G);
- Threat
- QAR1(K)
- Vars
- P(h);XP(J)::S(I),XP(h)
- B(f);N_GUARD::R1(C),XB(f)
- B(f);N_GUARD::QAR1(K),XB(f)
- S(d);N_GUARD::B(A)
- S(i);OGATE::QAB(K)
- Refutation
- S(d);
- Try
- S(G);
- Threat
- QAR1(K)
- Vars
- S(d);N_GUARD,XS(G)::B(A)
- S(i);OGATE,XS(G)::QAB(K)
- P(h);XP(J)::S(I),XP(h)
- B(f);N_GUARD::R1(C),XB(f)
- B(f);N_GUARD::QAR1(K),XB(f)
- P(h);::QAR1(K),XP(h)
- Refutation
- S(d);
- Try
- B(A);CHECK
- Refutation
- S(d);XB(A)
- Try
- R(C);
- Threat
- S(I)
- Vars
- B(f);N_GUARD::R1(C),XB(f)
- B(f);N_GUARD::QAR1(K),XB(f)
- Refutation
- P(a);
- Try
- P(B);
- Threat
- QAR1(K)
- Vars
- B(f);OGATE,XP(B)::QAR1(K),XB(f)
- P(h);XP(J)::S(I),XP(h)
- S(d);N_GUARD::B(A)
- S(i);OGATE::QAB(K)
- P(h);::QAR1(K),XP(h)
- Refutation
- S(d);
- Try
- P(F);
- Threat
- DUALS(2)
- Vars
- P(b);XB(A)::QAR1(K)
- P(b);::QAR1(K)
- S(d);N_GUARD::B(A)
- S(i);::R1(C)
- P(h);::R1(C)
- Refutation
- B(f);XP(F)
- Try
- P(J);XP(h)
- Threat
- S(I)
- Vars
- B(f);N_GUARD::R1(C),XB(f)
- S(d);N_GUARD::B(A)
- P(g);::S(I),XP(g)
- Refutation
- B(f);
- Try
- Actual
- S(G);XP(b)
- Threat
- QAR1(K)
- Vars
- P(h);XP(J)::S(I),XP(h)
- B(f);N_GUARD::R1(C),XB(f)
- B(f);N_GUARD::QAR1(K),XB(f)
- S(d);SBLOCK::S(G)
- S(d);N_GUARD::B(A)
- S(i);OGATE::QAB(K)
- P(h);::QAR1(K),XP(h)
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).