MESON Chess Problem Database
Problem Display
PID: 92282 (1NNR4/b1B2p2/B1p2Pp1/2kPnnR1/4K3/P5p1/6P1/8 w - - 0 1)
Hegermann, Albert
2nd Prize, Schach, 1964
#2
11 + 8
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Bb6
- 2.Bxb6#
- 1...Bxb8
- 2.Bb6#
- 1...Sd3
- 2.Sd7#
- 1...Sf3
- 2.Sd7#
- 1...Sc4
- 2.Sd7#
- 1...Sg4
- 2.Sd7#
- 1...Sd7
- 2.Sxd7#
- 1...Se3
- 2.Bd6#
- 1...Sd4
- 2.Bd6#
- 1...Sh4
- 2.Bd6#
- 1...Sd6+
- 2.Bxd6#
- 1...Sh6
- 2.Bd6#
- 1...Se7
- 2.Bd6#
- 1...Sg7
- 2.Bd6#
- 1...cxd5+
- 2.Rxd5#
- 1...Bb6
- Tries
- 1.Kxe5?
- threat
- 2.Sd7#
- 1...cxd5
- 2.Rxd5#
- 1...Bxb8!
- threat
- 1.Ba5?
- threat
- 2.Bb4#
- 1...cxd5+
- 2.Rxd5#
- 1...Sd3
- 2.Sd7#
- 1...Sd6+!
- threat
- 1.Bxe5?
- threat
- 2.Sd7#
- 1...Sd6+
- 2.Bxd6#
- 1...cxd5+
- 2.Rxd5#
- 1...Bxb8!
- threat
- 1.Rg4?
- 1...Sd6+
- 2.Bxd6#
- 1...cxd5+
- 2.Rxd5#
- 1...Bxb8
- 2.Bb6#
- 1...Sxg4
- 2.Sd7#
- 1...Bb6
- 2.Bxb6#
- 1...Sd3
- 2.Sd7#
- 1...Sf3
- 2.Sd7#
- 1...Sc4
- 2.Sd7#
- 1...Sd7
- 2.Sxd7#
- 1...Se3
- 2.Bd6#
- 1...Sd4
- 2.Bd6#
- 1...Sh4
- 2.Bd6#
- 1...Sh6
- 2.Bd6#
- 1...Se7
- 2.Bd6#
- 1...Sg7
- 2.Bd6#
- 1...g5!
- 1...Sd6+
- 1.Rxf5?
- threat
- 2.Bd6#
- 1...cxd5+
- 2.Rxd5#
- 1...Bxb8
- 2.Bb6#
- 1...Sc4
- 2.Sd7#
- 1...gxf5+!
- threat
- 1.Rxg6?
- 1...Sd6+
- 2.Bxd6#
- 1...cxd5+
- 2.Rxd5#
- 1...Bxb8
- 2.Bb6#
- 1...Sxg6
- 2.Sd7#
- 1...Bb6
- 2.Bxb6#
- 1...Sd3
- 2.Sd7#
- 1...Sf3
- 2.Sd7#
- 1...Sc4
- 2.Sd7#
- 1...Sg4
- 2.Sd7#
- 1...Sd7
- 2.Sxd7#
- 1...Se3
- 2.Bd6#
- 1...Sd4
- 2.Bd6#
- 1...Sh4
- 2.Bd6#
- 1...Sh6
- 2.Bd6#
- 1...Se7
- 2.Bd6#
- 1...Sg7
- 2.Bd6#
- 1...fxg6!
- 1...Sd6+
- 1.Re8?
- 1...Sd6+
- 2.Bxd6#
- 1...Bxb8
- 2.Bb6#
- 1...Bb6
- 2.Bxb6#
- 1...Sd3
- 2.Sd7#
- 1...Sf3
- 2.Sd7#
- 1...Sc4
- 2.Sd7#
- 1...Sg4
- 2.Sd7#
- 1...Sd7
- 2.Sxd7#
- 1...Se3
- 2.Bd6#
- 1...Sd4
- 2.Bd6#
- 1...Sh4
- 2.Bd6#
- 1...Sh6
- 2.Bd6#
- 1...Se7
- 2.Bd6#
- 1...Sg7
- 2.Bd6#
- 1...cxd5+!
- 1...Sd6+
- 1.Rf8?
- 1...Sd6+
- 2.Bxd6#
- 1...Bxb8
- 2.Bb6#
- 1...Bb6
- 2.Bxb6#
- 1...Sd3
- 2.Sd7#
- 1...Sf3
- 2.Sd7#
- 1...Sc4
- 2.Sd7#
- 1...Sg4
- 2.Sd7#
- 1...Sd7
- 2.Sxd7#
- 1...Se3
- 2.Bd6#
- 1...Sd4
- 2.Bd6#
- 1...Sh4
- 2.Bd6#
- 1...Sh6
- 2.Bd6#
- 1...Se7
- 2.Bd6#
- 1...Sg7
- 2.Bd6#
- 1...cxd5+!
- 1...Sd6+
- 1.Rg8?
- 1...Sd6+
- 2.Bxd6#
- 1...Bxb8
- 2.Bb6#
- 1...Bb6
- 2.Bxb6#
- 1...Sd3
- 2.Sd7#
- 1...Sf3
- 2.Sd7#
- 1...Sc4
- 2.Sd7#
- 1...Sg4
- 2.Sd7#
- 1...Sd7
- 2.Sxd7#
- 1...Se3
- 2.Bd6#
- 1...Sd4
- 2.Bd6#
- 1...Sh4
- 2.Bd6#
- 1...Sh6
- 2.Bd6#
- 1...Se7
- 2.Bd6#
- 1...Sg7
- 2.Bd6#
- 1...cxd5+!
- 1...Sd6+
- 1.Rh8?
- 1...Sd6+
- 2.Bxd6#
- 1...Bxb8
- 2.Bb6#
- 1...Bb6
- 2.Bxb6#
- 1...Sd3
- 2.Sd7#
- 1...Sf3
- 2.Sd7#
- 1...Sc4
- 2.Sd7#
- 1...Sg4
- 2.Sd7#
- 1...Sd7
- 2.Sxd7#
- 1...Se3
- 2.Bd6#
- 1...Sd4
- 2.Bd6#
- 1...Sh4
- 2.Bd6#
- 1...Sh6
- 2.Bd6#
- 1...Se7
- 2.Bd6#
- 1...Sg7
- 2.Bd6#
- 1...cxd5+!
- 1...Sd6+
- 1.dxc6?
- threat
- 2.Rd5#
- 1...Sd6+
- 2.Bxd6#
- 1...Sd7
- 2.Bd6#
- 1...Se3
- 2.Bd6#
- 1...Se7
- 2.Bd6#
- 1...Bxb8!
- threat
- 1.Kxe5?
- Keys
- 1.d6!
- 1...Sxd6+
- 2.Bxd6#
- 1...Bxb8
- 2.Bb6#
- 1...Bb6
- 2.Bxb6#
- 1...Sd3
- 2.Sd7#
- 1...Sf3
- 2.Sd7#
- 1...Sc4
- 2.Sd7#
- 1...Sg4
- 2.Sd7#
- 1...Sd7
- 2.Sxd7#
- 1...Se3
- 2.Sd7#
- 1...Sd4
- 2.Sd7#
- 2.Rxe5#
- 1...Sh4
- 2.Sd7#
- 2.Rxe5#
- 1...Sh6
- 2.Sd7#
- 2.Rxe5#
- 1...Se7
- 2.Sd7#
- 1...Sg7
- 2.Sd7#
- 2.Rxe5#
- 1...Sxd6+
- 1.d6!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 2
- ADDED MATES = 0
- REMOVED MATES = 5
- Sets
- B(g);N_GUARD::B(H),XB(g)
- B(g);N_GUARD,XS(I)::B(H)
- S(c);N_GUARD::S(I)
- S(c);N_GUARD::S(I),XS(c)
- S(d);N_GUARD::B(H)
- S(d);CHECK,N_GUARD::B(H),XS(d)
- P(e);CHECK,OGATE,XP(D)::R1(K),XP(e)
- Tries
- Try
- K(C);P-FLIGHT,XS(c)
- Threat
- S(I)
- Vars
- P(e);OGATE,XP(D)::R1(K),XP(e)
- Refutation
- B(g);P_PINB(H),XS(I)
- Try
- B(H);
- Threat
- B(H)
- Vars
- P(e);CHECK,OGATE,XP(D)::R1(K),XP(e)
- S(c);N_GUARD::S(I)
- Refutation
- S(d);CHECK
- Try
- B(H);XS(c)
- Threat
- S(I)
- Vars
- S(d);CHECK,N_GUARD::B(H),XS(d)
- P(e);CHECK,OGATE,XP(D)::R1(K),XP(e)
- Refutation
- B(g);XS(I)
- Try
- R(E);
- Vars
- S(d);CHECK,N_GUARD::B(H),XS(d)
- P(e);CHECK,OGATE,XP(D)::R1(K),XP(e)
- B(g);N_GUARD,XS(I)::B(H)
- S(c);N_GUARD,XR(E)::S(I)
- B(g);N_GUARD::B(H),XB(g)
- S(c);N_GUARD::S(I)
- S(c);N_GUARD::S(I),XS(c)
- S(d);N_GUARD::B(H)
- Refutation
- P(f);
- Try
- R(E);XS(d)
- Threat
- B(H)
- Vars
- P(e);CHECK,OGATE,XP(D)::R1(K),XP(e)
- B(g);N_GUARD,XS(I)::B(H)
- S(c);N_GUARD::S(I)
- Refutation
- P(f);CHECK,XR(E)
- Try
- R(E);XP(f)
- Vars
- S(d);CHECK,N_GUARD::B(H),XS(d)
- P(e);CHECK,OGATE,XP(D)::R1(K),XP(e)
- B(g);N_GUARD,XS(I)::B(H)
- S(c);N_GUARD,XR(E)::S(I)
- B(g);N_GUARD::B(H),XB(g)
- S(c);N_GUARD::S(I)
- S(c);N_GUARD::S(I),XS(c)
- S(d);N_GUARD::B(H)
- Refutation
- P(h);XR(E)
- Try
- R(K);
- Vars
- S(d);CHECK,N_GUARD::B(H),XS(d)
- B(g);N_GUARD,XS(I)::B(H)
- B(g);N_GUARD::B(H),XB(g)
- S(c);N_GUARD::S(I)
- S(c);N_GUARD::S(I),XS(c)
- S(d);N_GUARD::B(H)
- Refutation
- P(e);CHECK,XP(D)
- Try
- R(K);
- Vars
- S(d);CHECK,N_GUARD::B(H),XS(d)
- B(g);N_GUARD,XS(I)::B(H)
- B(g);N_GUARD::B(H),XB(g)
- S(c);N_GUARD::S(I)
- S(c);N_GUARD::S(I),XS(c)
- S(d);N_GUARD::B(H)
- Refutation
- P(e);CHECK,XP(D)
- Try
- R(K);
- Vars
- S(d);CHECK,N_GUARD::B(H),XS(d)
- B(g);N_GUARD,XS(I)::B(H)
- B(g);N_GUARD::B(H),XB(g)
- S(c);N_GUARD::S(I)
- S(c);N_GUARD::S(I),XS(c)
- S(d);N_GUARD::B(H)
- Refutation
- P(e);CHECK,XP(D)
- Try
- R(K);
- Vars
- S(d);CHECK,N_GUARD::B(H),XS(d)
- B(g);N_GUARD,XS(I)::B(H)
- B(g);N_GUARD::B(H),XB(g)
- S(c);N_GUARD::S(I)
- S(c);N_GUARD::S(I),XS(c)
- S(d);N_GUARD::B(H)
- Refutation
- P(e);CHECK,XP(D)
- Try
- P(D);XP(e)
- Threat
- R1(K)
- Vars
- S(d);CHECK,N_GUARD,P_SPINS(c)::B(H),XS(d)
- S(c);P_SPINS(d)::B(H)
- S(d);N_GUARD,P_SPINS(c)::B(H)
- Refutation
- B(g);XS(I)
- Try
- Actual
- P(D);
- Vars
- S(d);CHECK,OGATE,P_SPINS(c),XP(D)::B(H),XS(d)
- B(g);N_GUARD,XS(I)::B(H)
- B(g);N_GUARD::B(H),XB(g)
- S(c);N_GUARD,P_SPINS(d)::S(I)
- S(c);N_GUARD,P_SPINS(d)::S(I),XS(c)
- S(d);P_SPINS(c)::S(I)
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).