MESON Chess Problem Database
Problem Display
PID: 261094 (4K3/B6p/N1nkp1nR/3P2Q1/2pb4/8/8/1Nr4B w - - 0 1)
Felber, Stefan
Neue Zurcher Zeitung, 2014
#2
8 + 8
| 6490 | yacpdb | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Ba1
- 2.Bc5#
- 1...Bb2
- 2.Bc5#
- 1...Bc3
- 2.Bc5#
- 1...Bc5
- 2.Bxc5#
- 1...Be5
- 2.Bc5#
- 1...Bf6
- 2.Bc5#
- 1...Bg7
- 2.Bc5#
- 1...Bh8
- 2.Bc5#
- 1...Sb4
- 2.Bb8#
- 1...Sa5
- 2.Bb8#
- 1...Sce5
- 2.Bb8#
- 1...Sce7
- 2.Bb8#
- 1...Sb8
- 2.Bxb8#
- 1...Sd8
- 2.Bb8#
- 1...Sh4
- 2.Rxe6#
- 1...Sge5
- 2.Rxe6#
- 1...Sge7
- 2.Rxe6#
- 1...Sh8
- 2.Rxe6#
- 1...exd5
- 2.Qxd5#
- 1...e5
- 2.Qf6#
- 1...Ba1
- Tries
- 1.Sa3?
- threat
- 2.Sb5#
- 1...exd5
- 2.Qxd5#
- 1...Rb1
- 2.Sxc4#
- 1...Sxa7!
- threat
- 1.Sc3?
- threat
- 2.Se4#
- 2.Sb5#
- 1...Bxc3
- 2.Bc5#
- 1...Sxa7
- 2.Se4#
- 1...exd5
- 2.Qxd5#
- 1...Rb1
- 2.Se4#
- 1...Re1
- 2.Sb5#
- 1...Be5
- 2.Sb5#
- 2.Bc5#
- 1...Sce5
- 2.Sb5#
- 2.Bb8#
- 1...Sge5
- 2.Sb5#
- 2.Rxe6#
- 1...e5
- 2.Sb5#
- 2.Qf6#
- 1...Rxc3!
- threat
- 1.Bxd4?
- threat
- 2.Bc5#
- 1...exd5
- 2.Qf6#
- 2.Qxd5#
- 1...Sxd4!
- threat
- 1.Bb6?
- threat
- 2.Bc7#
- 1...exd5
- 2.Qxd5#
- 1...Bxb6!
- threat
- 1.Qf4+?
- 1...Be5
- 2.Bc5#
- 1...Sce5
- 2.Bb8#
- 1...Sge5
- 2.Rxe6#
- 1...e5
- 2.Qf6#
- 1...Sxf4!
- 1...Be5
- 1.Qe7+?
- 1...Scxe7
- 2.Bb8#
- 1...Sgxe7
- 2.Rxe6#
- 1...Ke5!
- 1...Scxe7
- 1.Qd8+?
- 1...Sxd8
- 2.Bb8#
- 1...Ke5!
- 1...Sxd8
- 1.Qg3+?
- 1...Be5
- 2.Bc5#
- 1...Sce5
- 2.Bb8#
- 1...Sf4
- 2.Rxe6#
- 1...Sge5
- 2.Rxe6#
- 1...e5!
- 1...Be5
- 1.Qe5+?
- 1...Bxe5
- 2.Bc5#
- 1...Scxe5
- 2.Bb8#
- 1...Sgxe5
- 2.Rxe6#
- 1...Kxe5!
- 1...Bxe5
- 1.Sa3?
- Keys
- 1.Sd2!
- threat
- 2.Se4#
- 1...exd5
- 2.Qxd5#
- 1...Re1
- 2.Sxc4#
- 1...Be5
- 2.Bc5#
- 1...Sce5
- 2.Bb8#
- 1...Sge5
- 2.Rxe6#
- 1...e5
- 2.Qf6#
- threat
- 1.Sd2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 15
- Sets
- B(c);N_GUARD::B(G)
- B(c);N_GUARD::B(G),XB(c)
- S(d);N_GUARD::B(G)
- S(d);N_GUARD::B(G),XS(d)
- S(g);OGATE,P_SPINP(f)::R1(F),XP(f)
- P(f);OGATE,P_SPINS(g),XP(C)::QAR1(D),XP(f)
- P(f);OGATEB,P_SPINS(g)::QAR2(D)
- Tries
- Try
- S(A);
- Threat
- S(A)
- Vars
- P(f);OGATE,P_SPINS(g),XP(C)::QAR1(D),XP(f)
- R(a);N_GUARD::S(A),XP(b)
- Refutation
- S(d);XB(G)
- Try
- S(A);
- Threat
- DUALS(2)
- Vars
- B(c);N_GUARD,XS(A)::B(G)
- S(d);XB(G)::S(A)
- P(f);OGATE,P_SPINS(g),XP(C)::QAR1(D),XP(f)
- R(a);::S(A)
- Refutation
- R(a);XS(A)
- Try
- B(G);XB(c)
- Threat
- B(G)
- Refutation
- S(d);XB(G)
- Try
- B(G);
- Threat
- B(G)
- Vars
- P(f);OGATE,P_SPINS(g),XP(C)::QAR1(D),XP(f)
- Refutation
- B(c);XB(G)
- Try
- Q(D);CHECK
- Vars
- B(c);P_SPINB(c)::B(G)
- S(d);P_SPINS(d)::B(G)
- S(g);OGATE,P_SPINP(f),P_SPINS(g)::R1(F),XP(f)
- P(f);OGATEB,P_SPINP(f),P_SPINS(g)::QAR2(D)
- Refutation
- S(g);P_SPINP(f),XQ(D)
- Try
- Q(D);CHECK
- Vars
- S(d);XQ(D)::B(G)
- S(g);OGATE,P_SPINP(f),XQ(D)::R1(F),XP(f)
- Refutation
- K(e);P_SPINP(f),S_FLIGHT
- Try
- Q(D);CHECK
- Vars
- S(d);XQ(D)::B(G)
- Refutation
- K(e);S_FLIGHT
- Try
- Q(D);CHECK
- Vars
- B(c);P_SPINB(c)::B(G)
- S(d);P_SPINS(d)::B(G)
- S(g);OGATE,P_SPINP(f),P_SPINS(g)::R1(F),XP(f)
- Refutation
- P(f);P_SPINP(f),P_SPINS(g)
- Try
- Q(D);CHECK
- Vars
- B(c);SBLOCK,XQ(D)::B(G)
- S(d);SBLOCK,XQ(D)::B(G)
- S(g);OGATE,P_SPINP(f),XQ(D)::R1(F),XP(f)
- Refutation
- K(e);S_FLIGHT,XQ(D)
- Try
- Actual
- S(A);
- Threat
- S(A)
- Vars
- P(f);OGATE,P_SPINS(g),XP(C)::QAR1(D),XP(f)
- R(a);N_GUARD::S(A),XP(b)
- B(c);N_GUARD::B(G)
- S(d);N_GUARD::B(G)
- S(g);OGATE,P_SPINP(f)::R1(F),XP(f)
- P(f);OGATEB,P_SPINS(g)::QAR2(D)
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).