MESON Chess Problem Database
Problem Display
PID: 123437 (1nr1r1b1/3N1n2/6Q1/5p1N/R1B1k2p/3R2b1/8/7K w - - 0 1)
Zucker, Manfred
Thema Danicum, 1993
#2
7 + 9
| 6490 | yacpdb | 2009 |
| 15148 | Sadier Collection | 2013 |
SOLUTION
- SOUND
- Sets
- 1...Rcd8
- 2.Bb5#
- 2.Ba6#
- 1...Re5
- 2.Sdf6#
- 1...Be1
- 2.Qg2#
- 1...Bf2
- 2.Qg2#
- 1...Bh2
- 2.Qg2#
- 1...Bf4
- 2.Shf6#
- 2.Qg2#
- 1...Be5
- 2.Qg2#
- 1...Bd6
- 2.Qg2#
- 1...Bc7
- 2.Bb5#
- 2.Ba6#
- 2.Qg2#
- 1...Se5
- 2.Sdf6#
- 1...Rcd8
- Tries
- 1.Sxg3+?
- 1...Kf4
- 2.Qxf5#
- 1...hxg3!
- 1...Kf4
- 1.Sc5+?
- 1...Ke5
- 2.Rd5#
- 2.Qf6#
- 2.Qg7#
- 1...Rxc5!
- 1...Ke5
- 1.Be6+?
- 1...Rc4
- 2.Bxf5#
- 2.Qxf5#
- 1...Kxd3!
- 1...Rc4
- 1.Ra2?
- threat
- 2.Re2#
- 1...Bf2
- 2.Qg2#
- 1...Bf4
- 2.Shf6#
- 2.Qg2#
- 1...Rxc4!
- threat
- 1.Ra5?
- threat
- 2.Sdf6#
- 2.Qxf5#
- 1...Rxc4
- 2.Qxf5#
- 1...Sxd7
- 2.Qxf5#
- 1...Rc6
- 2.Qxf5#
- 1...Re5
- 2.Sdf6#
- 1...Re6
- 2.Qxf5#
- 1...Be5
- 2.Qg2#
- 1...Bh7
- 2.Sdf6#
- 1...Se5
- 2.Sdf6#
- 1...Sd6
- 2.Sdf6#
- 1...Sh6
- 2.Sdf6#
- 1...Rc5!
- threat
- 1.Qxg3?
- threat
- 2.Shf6#
- 2.Sdf6#
- 2.Bd5#
- 2.Qe1#
- 2.Qf4#
- 2.Qg2#
- 2.Qe3#
- 2.Qf3#
- 1...Rxc4
- 2.Shf6#
- 2.Sc5#
- 2.Sdf6#
- 2.Rxc4#
- 2.Qe3#
- 2.Qf3#
- 1...Sxd7
- 2.Bd5#
- 2.Qe1#
- 2.Qf4#
- 2.Qe3#
- 1...f4
- 2.Qxf4#
- 2.Qg6#
- 1...Rc6
- 2.Bd5#
- 2.Qe1#
- 2.Qf4#
- 2.Qg2#
- 2.Qe3#
- 2.Qf3#
- 1...Re6
- 2.Bd5#
- 2.Qe1#
- 2.Qf4#
- 2.Qg2#
- 2.Qe3#
- 2.Qf3#
- 1...Se5
- 2.Shf6#
- 2.Sdf6#
- 2.Bd5#
- 2.Qe1#
- 2.Qf4#
- 2.Qe3#
- 1...Sg5
- 2.Shf6#
- 2.Sdf6#
- 2.Bd5#
- 2.Qe1#
- 2.Qf4#
- 2.Qe3#
- 1...h3
- 2.Shf6#
- 2.Sdf6#
- 2.Bd5#
- 2.Qe1#
- 2.Qf4#
- 2.Qe3#
- 2.Qf3#
- 1...hxg3!
- threat
- 1.Qg4+?
- 1...Bf4
- 2.Shf6#
- 2.Qf3#
- 2.Qg2#
- 2.Qxf4#
- 1...f4
- 2.Shf6#
- 2.Qg6#
- 1...fxg4!
- 1...Bf4
- 1.Qg5?
- threat
- 2.Shf6#
- 2.Qe3#
- 1...Rxc4
- 2.Qe3#
- 1...Sxd7
- 2.Qe3#
- 1...Rc6
- 2.Qe3#
- 1...Re6
- 2.Qe3#
- 1...Bf2
- 2.Shf6#
- 2.Qf4#
- 2.Qg2#
- 1...Bf4
- 2.Shf6#
- 2.Qxf4#
- 2.Qg2#
- 1...Be5
- 2.Qe3#
- 2.Qg2#
- 1...f4
- 2.Shf6#
- 2.Sdf6#
- 2.Qd5#
- 2.Qg6#
- 1...Sxg5!
- threat
- 1.Qe6+?
- 1...Be5
- 2.Sdf6#
- 2.Qd5#
- 1...Se5
- 2.Sdf6#
- 1...Rxe6!
- 1...Be5
- 1.Sxg3+?
- Keys
- 1.Qg7!
- threat
- 2.Qd4#
- 1...Rxc4
- 2.Sc5#
- 1...f4
- 2.Qg6#
- 1...Re5
- 2.Sdf6#
- 1...Bf2
- 2.Qg2#
- 1...Be5
- 2.Qg2#
- 1...Se5
- 2.Sdf6#
- 1...Sc6
- 2.Sc5#
- threat
- 1.Qg7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 3
- Sets
- R(h);SBLOCK::S(G)
- B(a);OGATE::QAB(F)
- S(e);SBLOCK::S(G)
- Tries
- Try
- S(E);CHECK,XB(a)
- Vars
- K(b);N_SPINP(d),P-FLIGHT::QAR1(F),XP(d)
- Refutation
- P(c);XS(E)
- Try
- S(G);CHECK
- Refutation
- R(g);XS(G)
- Try
- B(D);CHECK
- Refutation
- K(b);S_FLIGHT,XR(B)
- Try
- R(C);
- Threat
- R(C)
- Vars
- B(a);OGATE::QAB(F)
- Refutation
- R(g);XB(D)
- Try
- R(C);
- Threat
- DUALS(2)
- Vars
- R(g);XB(D)::QAB1(F),XP(d)
- S(f);XS(G)::QAB1(F),XP(d)
- R(g);::QAB1(F),XP(d)
- R(h);::S(G)
- R(h);::QAB1(F),XP(d)
- B(a);OGATE::QAB(F)
- B(i);::S(G)
- S(e);::S(G)
- Refutation
- R(g);
- Try
- Q(F);N_PINP(d),XB(a)
- Threat
- DUALS(8)
- Refutation
- P(c);XQ(F)
- Try
- Q(F);CHECK,N_PINP(d)
- Refutation
- P(d);XQ(F)
- Try
- Q(F);N_PINP(d)
- Threat
- DUALS(2)
- Vars
- R(g);P_SPINR(g),XB(D)::QAR1(F)
- S(f);XS(G)::QAR1(F)
- R(g);::QAR1(F)
- R(h);::QAR1(F)
- Refutation
- S(e);XQ(F)
- Try
- Q(F);CHECK,N_PINP(d)
- Vars
- S(e);P_SPINS(e)::S(G)
- Refutation
- R(h);XQ(F)
- Try
- Actual
- Q(F);N_PINP(d)
- Threat
- QAR1(F)
- Vars
- R(g);N_GUARD,P_SPINR(g),XB(D)::S(G)
- P(d);OGATEB::QAB(F)
- R(h);SBLOCK::S(G)
- B(a);OGATE::QAB(F)
- S(e);SBLOCK::S(G)
- S(f);S_CUTR(g)::S(G)
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).