MESON Chess Problem Database
Problem Display
PID: 203 (K2R4/2p2Q1p/7b/2BPN3/4k3/1pR1pN2/6n1/2nB1b2 w - - 0 1)
Ellerman, Arnoldo
1st Prize, Magasinet, 1950
#2
9 + 9
| 3105 | FIDE Album (1945-1955) | 1964 |
SOLUTION
- SOUND
- Sets
- 1...Bc4
- 2.Rxc4#
- 1...Bf4
- 2.Qxh7#
- 1...Sd3
- 2.Rc4#
- 1...Sf4
- 2.Rxe3#
- 1...e2
- 2.Rc4#
- 1...Bc4
- Tries
- 1.Sd2+?
- 1...Kxe5
- 2.Re8#
- 1...exd2!
- 1...Kxe5
- 1.Sd4?
- threat
- 2.Qf5#
- 1...Kxe5
- 2.Re8#
- 2.Qf5#
- 1...Sh4!
- threat
- 1.Sh4?
- threat
- 2.Qf5#
- 1...Kxe5
- 2.Re8#
- 2.Qf5#
- 1...Sxh4!
- threat
- 1.Sg5+?
- 1...Kxe5
- 2.Re8#
- 1...Bxg5!
- 1...Kxe5
- 1.Sd3?
- threat
- 2.Re8#
- 2.Qe6#
- 2.Qxh7#
- 1...Bxd3
- 2.Re8#
- 1...Sxd3
- 2.Rc4#
- 1...Be2
- 2.Re8#
- 1...Bf4
- 2.Qxh7#
- 1...Bg5
- 2.Sxg5#
- 2.Qe6#
- 2.Qxh7#
- 1...Bg7
- 2.Sg5#
- 1...Bf8
- 2.Sg5#
- 2.Qe6#
- 2.Qxh7#
- 1...Se2
- 2.Re8#
- 1...Sh4
- 2.Re8#
- 2.Qe6#
- 1...e2
- 2.Sf2#
- 2.Re8#
- 1...Sf4!
- threat
- 1.Sc4?
- threat
- 2.Re8#
- 1...Bf4
- 2.Qxh7#
- 1...Bg5
- 2.Sxg5#
- 1...Bg7
- 2.Sg5#
- 1...Bf8
- 2.Sg5#
- 1...Sf4
- 2.Rxe3#
- 1...Sd3!
- threat
- 1.Sg4?
- threat
- 2.Re8#
- 1...Bf4
- 2.Qxh7#
- 1...Bg5
- 2.Sxg5#
- 1...Bg7
- 2.Sg5#
- 1...Bf8
- 2.Sg5#
- 1...Sd3
- 2.Rc4#
- 1...Sf4
- 2.Rxe3#
- 1...Bb5!
- threat
- 1.Sg6?
- threat
- 2.Re8#
- 2.Qe6#
- 1...hxg6
- 2.Re8#
- 1...Be2
- 2.Re8#
- 1...Bb5
- 2.Qe6#
- 1...Bg5
- 2.Sxg5#
- 2.Qe6#
- 1...Bg7
- 2.Sg5#
- 1...Bf8
- 2.Sg5#
- 2.Qe6#
- 1...Se2
- 2.Re8#
- 1...Sd3
- 2.Rc4#
- 1...Sf4
- 2.Rxe3#
- 1...Bf4!
- threat
- 1.Sd7?
- threat
- 2.Re8#
- 1...Bg5
- 2.Sxg5#
- 1...Bg7
- 2.Sg5#
- 1...Bf8
- 2.Sg5#
- 1...Sd3
- 2.Rc4#
- 1...Sf4
- 2.Rxe3#
- 1...Bf4!
- threat
- 1.Bc2+?
- 1...Bd3
- 2.Rc4#
- 1...Sd3
- 2.Rc4#
- 1...bxc2!
- 1...Bd3
- 1.Re8?
- threat
- 2.Sd3#
- 2.Sc4#
- 2.Sg4#
- 2.Sc6#
- 2.Sg6#
- 2.Sd7#
- 1...Bd3
- 2.Sxd3#
- 2.Sc4#
- 2.Sg4#
- 2.Sc6#
- 2.Sg6#
- 2.Sd7#
- 1...Bc4
- 2.Sd3#
- 2.Sxc4#
- 2.Sg4#
- 2.Sc6#
- 2.Sg6#
- 2.Sd7#
- 2.Rxc4#
- 1...Bb5
- 2.Sc6#
- 2.Sd7#
- 1...Bg5
- 2.Sxg5#
- 1...Bg7
- 2.Sg5#
- 1...Bf8
- 2.Sg5#
- 1...Sd3
- 2.Sxd3#
- 2.Rc4#
- 1...Sf4
- 2.Rxe3#
- 1...c6
- 2.Sd3#
- 2.Sc4#
- 2.Sg4#
- 2.Sxc6#
- 2.Sg6#
- 2.Sd7#
- 1...Bf4!
- threat
- 1.Qg6+?
- 1...Kf4
- 2.Qg4#
- 1...hxg6!
- 1...Kf4
- 1.Sd2+?
- Keys
- 1.Sc6!
- threat
- 2.Re8#
- 1...Bf4
- 2.Qxh7#
- 1...Bg5
- 2.Sxg5#
- 1...Bg7
- 2.Sg5#
- 1...Bf8
- 2.Sg5#
- 1...Sd3
- 2.Rc4#
- 1...Sf4
- 2.Rxe3#
- threat
- 1.Sc6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 2
- Sets
- B(b);N_GUARD::R(B),XB(b)
- B(g);SBLOCK::QAB(G),XP(i)
- S(a);S_CUTB(b)::R(B)
- S(c);N_GUARD,S_CUTB(g)::R1(B),XP(e)
- P(e);S_CUTB(b)::R(B)
- Tries
- Try
- S(C);CHECK
- Vars
- K(f);P-FLIGHT,XS(F)::R(I)
- Refutation
- P(e);XS(C)
- Try
- S(C);
- Threat
- QAB1(G)
- Refutation
- S(c);
- Try
- S(C);
- Threat
- QAB1(G)
- Refutation
- S(c);XS(C)
- Try
- S(C);CHECK
- Vars
- K(f);P-FLIGHT,XS(F)::R(I)
- Refutation
- B(g);XS(C)
- Try
- S(F);
- Threat
- DUALS(3)
- Vars
- B(b);XS(F)::R(I)
- S(a);SBLOCK,XS(F)::R(B)
- B(b);::R(I)
- B(g);::QAB(G),XP(i)
- B(g);N_GUARD::S(C)
- S(a);::R(I)
- Refutation
- S(c);
- Try
- S(F);
- Threat
- R(I)
- Vars
- B(g);SBLOCK::QAB(G),XP(i)
- B(g);N_GUARD::S(C),XB(g)
- B(g);N_GUARD::S(C)
- S(c);N_GUARD,S_CUTB(g)::R1(B),XP(e)
- Refutation
- S(a);
- Try
- S(F);
- Threat
- R(I)
- Vars
- B(g);SBLOCK::QAB(G),XP(i)
- B(g);N_GUARD::S(C),XB(g)
- B(g);N_GUARD::S(C)
- S(a);SBLOCK,S_CUTB(b)::R(B)
- S(c);N_GUARD,S_CUTB(g)::R1(B),XP(e)
- Refutation
- B(b);
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- P(i);XS(F)::R(I)
- B(b);::R(I)
- B(b);::QAR2(G)
- B(g);N_GUARD::S(C)
- S(a);::R(I)
- S(a);SBLOCK,S_CUTB(b)::R(B)
- S(c);N_GUARD,S_CUTB(g)::R1(B),XP(e)
- Refutation
- B(g);
- Try
- S(F);
- Threat
- R(I)
- Vars
- B(g);N_GUARD::S(C),XB(g)
- B(g);N_GUARD::S(C)
- S(a);SBLOCK,S_CUTB(b)::R(B)
- S(c);N_GUARD,S_CUTB(g)::R1(B),XP(e)
- Refutation
- B(g);
- Try
- B(A);CHECK
- Vars
- B(b);P_SPINB(b)::R(B)
- S(a);P_SPINS(a)::R(B)
- Refutation
- P(d);XB(A)
- Try
- R(I);
- Threat
- DUALS(6)
- Vars
- B(g);N_GUARD::S(C),XB(g)
- B(g);N_GUARD::S(C)
- S(c);N_GUARD,S_CUTB(g)::R1(B),XP(e)
- Refutation
- B(g);
- Try
- Q(G);CHECK
- Vars
- K(f);P-FLIGHT::QAR1(G)
- Refutation
- P(i);XQ(G)
- Try
- Actual
- S(F);
- Threat
- R(I)
- Vars
- B(g);SBLOCK::QAB(G),XP(i)
- B(g);N_GUARD::S(C),XB(g)
- B(g);N_GUARD::S(C)
- S(a);SBLOCK,S_CUTB(b)::R(B)
- S(c);N_GUARD,S_CUTB(g)::R1(B),XP(e)
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).