MESON Chess Problem Database
Problem Display
PID: 92037 (2n3B1/3R2b1/p1N2pk1/R1p4p/7p/7p/1Q5N/K1B5 w - - 0 1)
Steinweg, Richard
Der Schachfreund, 1899
#2
8 + 9
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Kf5
- 2.Qb1#
- 2.Qc2#
- 1...Bh6
- 2.Bh7#
- 1...Bf8
- 2.Bh7#
- 1...Bh8
- 2.Bh7#
- 1...Sb6
- 2.Se7#
- 1...Sd6
- 2.Se7#
- 1...Sa7
- 2.Se7#
- 1...Se7
- 2.Sxe7#
- 1...f5
- 2.Rxg7#
- 2.Qxg7#
- 1...Kf5
- Tries
- 1.Kb1?
- 1...Kf5
- 2.Qc2#
- 1...Bh6
- 2.Bh7#
- 1...Bf8
- 2.Bh7#
- 1...Bh8
- 2.Bh7#
- 1...Sb6
- 2.Se7#
- 1...Sd6
- 2.Se7#
- 1...Sa7
- 2.Se7#
- 1...Se7
- 2.Sxe7#
- 1...f5
- 2.Rxg7#
- 2.Qxg7#
- 1...c4!
- 1...Kf5
- 1.Ka2?
- 1...Kf5
- 2.Qb1#
- 2.Qc2#
- 1...Bh6
- 2.Bh7#
- 1...Bf8
- 2.Bh7#
- 1...Bh8
- 2.Bh7#
- 1...Sb6
- 2.Se7#
- 1...Sd6
- 2.Se7#
- 1...Sa7
- 2.Se7#
- 1...Se7
- 2.Sxe7#
- 1...f5
- 2.Rxg7#
- 2.Qxg7#
- 1...c4!
- 1...Kf5
- 1.Bd2?
- 1...Kf5
- 2.Qb1#
- 2.Qc2#
- 1...Bh6
- 2.Bh7#
- 1...Bf8
- 2.Bh7#
- 1...Bh8
- 2.Bh7#
- 1...Sb6
- 2.Se7#
- 1...Sd6
- 2.Se7#
- 1...Sa7
- 2.Se7#
- 1...Se7
- 2.Sxe7#
- 1...f5
- 2.Rxg7#
- 2.Qxg7#
- 1...c4!
- 1...Kf5
- 1.Be3?
- 1...Kf5
- 2.Qb1#
- 2.Qc2#
- 1...Bh6
- 2.Bh7#
- 1...Bf8
- 2.Bh7#
- 1...Bh8
- 2.Bh7#
- 1...Sb6
- 2.Se7#
- 1...Sd6
- 2.Se7#
- 1...Sa7
- 2.Se7#
- 1...Se7
- 2.Sxe7#
- 1...f5
- 2.Rxg7#
- 2.Qxg7#
- 1...c4!
- 1...Kf5
- 1.Bf7+?
- 1...Kf5
- 2.Qb1#
- 2.Qc2#
- 1...Kh7!
- 1...Kf5
- 1.Rxc5?
- 1...Bh6
- 2.Bh7#
- 1...Bf8
- 2.Bh7#
- 1...Bh8
- 2.Bh7#
- 1...Sb6
- 2.Se7#
- 1...Sd6
- 2.Se7#
- 1...Sa7
- 2.Se7#
- 1...Se7
- 2.Sxe7#
- 1...f5
- 2.Rxg7#
- 2.Qxg7#
- 1...a5!
- 1...Bh6
- 1.Rxa6?
- 1...Kf5
- 2.Qb1#
- 2.Qc2#
- 1...Bh6
- 2.Bh7#
- 1...Bf8
- 2.Bh7#
- 1...Bh8
- 2.Bh7#
- 1...Sb6
- 2.Se7#
- 1...Sd6
- 2.Se7#
- 1...Sa7
- 2.Se7#
- 1...Se7
- 2.Sxe7#
- 1...f5
- 2.Se5#
- 2.Se7#
- 2.Rxg7#
- 2.Qxg7#
- 1...c4!
- 1...Kf5
- 1.Rd6?
- threat
- 2.Qb1#
- 2.Qc2#
- 1...Kf5
- 2.Bh7#
- 2.Qb1#
- 2.Qc2#
- 1...Sxd6
- 2.Se7#
- 1...Bh6
- 2.Qxf6#
- 1...Bf8
- 2.Qxf6#
- 1...Se7
- 2.Sxe7#
- 1...Bh8!
- threat
- 1.Ra7?
- 1...Kf5
- 2.Qb1#
- 2.Qc2#
- 1...Sxa7
- 2.Se7#
- 1...Bh6
- 2.Bh7#
- 1...Bf8
- 2.Bh7#
- 1...Bh8
- 2.Bh7#
- 1...Sb6
- 2.Se7#
- 1...Sd6
- 2.Se7#
- 1...Se7
- 2.Sxe7#
- 1...f5
- 2.Rxg7#
- 2.Qxg7#
- 1...c4!
- 1...Kf5
- 1.Rb7?
- 1...Kf5
- 2.Qb1#
- 2.Qc2#
- 1...Bh6
- 2.Bh7#
- 1...Bf8
- 2.Bh7#
- 1...Bh8
- 2.Bh7#
- 1...Sb6
- 2.Se7#
- 1...Sd6
- 2.Se7#
- 1...Sa7
- 2.Se7#
- 1...Se7
- 2.Sxe7#
- 1...f5
- 2.Rxg7#
- 2.Qxg7#
- 1...c4!
- 1...Kf5
- 1.Rc7?
- 1...Kf5
- 2.Qb1#
- 2.Qc2#
- 1...Bh6
- 2.Bh7#
- 1...Bf8
- 2.Bh7#
- 1...Bh8
- 2.Bh7#
- 1...Sb6
- 2.Se7#
- 1...Sd6
- 2.Se7#
- 1...Sa7
- 2.Se7#
- 1...Se7
- 2.Sxe7#
- 1...f5
- 2.Rxg7#
- 2.Qxg7#
- 1...c4!
- 1...Kf5
- 1.Rxg7+?
- 1...Kf5
- 2.Qb1#
- 2.Qc2#
- 1...Kxg7!
- 1...Kf5
- 1.Qc3?
- 1...Kf5
- 2.Qc2#
- 2.Qd3#
- 1...Bh6
- 2.Bh7#
- 1...Bf8
- 2.Bh7#
- 1...Bh8
- 2.Bh7#
- 1...Sb6
- 2.Se7#
- 1...Sd6
- 2.Se7#
- 1...Sa7
- 2.Se7#
- 1...Se7
- 2.Sxe7#
- 1...f5
- 2.Rxg7#
- 2.Qxg7#
- 1...c4!
- 1...Kf5
- 1.Qd4?
- 1...Kf5
- 2.Qd3#
- 1...c4
- 2.Qg1#
- 1...Bh6
- 2.Bh7#
- 1...Bf8
- 2.Bh7#
- 1...Bh8
- 2.Bh7#
- 1...Sb6
- 2.Se7#
- 1...Sd6
- 2.Se7#
- 1...Sa7
- 2.Se7#
- 1...Se7
- 2.Sxe7#
- 1...f5
- 2.Rxg7#
- 2.Qxg7#
- 1...cxd4!
- 1...Kf5
- 1.Qe5?
- 1...c4
- 2.Qf5#
- 2.Qxh5#
- 2.Qe8#
- 1...Bh6
- 2.Bh7#
- 1...Bf8
- 2.Bh7#
- 1...Bh8
- 2.Bh7#
- 1...Sb6
- 2.Se7#
- 1...Sd6
- 2.Se7#
- 1...Sa7
- 2.Se7#
- 1...Se7
- 2.Sxe7#
- 1...f5
- 2.Rxg7#
- 2.Qxg7#
- 1...fxe5!
- 1...c4
- 1.Qe2?
- 1...Kf5
- 2.Bh7#
- 2.Qd3#
- 2.Qc2#
- 1...c4
- 2.Qxh5#
- 2.Qe8#
- 1...Bh6
- 2.Bh7#
- 1...Bf8
- 2.Bh7#
- 1...Bh8
- 2.Bh7#
- 1...Sb6
- 2.Se7#
- 1...Sd6
- 2.Se7#
- 1...Sa7
- 2.Se7#
- 1...Se7
- 2.Sxe7#
- 1...f5+!
- 1...Kf5
- 1.Qf2?
- 1...c4
- 2.Qg1#
- 2.Qf5#
- 1...Bh6
- 2.Bh7#
- 1...Bf8
- 2.Bh7#
- 1...Bh8
- 2.Bh7#
- 1...Sb6
- 2.Se7#
- 1...Sd6
- 2.Se7#
- 1...Sa7
- 2.Se7#
- 1...Se7
- 2.Sxe7#
- 1...f5+!
- 1...c4
- 1.Qg2+?
- 1...Kf5
- 2.Rxc5#
- 2.Rd5#
- 2.Qc2#
- 1...hxg2!
- 1...Kf5
- 1.Qb7?
- 1...Kf5
- 2.Qb1#
- 1...c4
- 2.Rxg7#
- 1...Bh6
- 2.Bh7#
- 1...Bf8
- 2.Bh7#
- 1...Bh8
- 2.Bh7#
- 1...Sb6
- 2.Se7#
- 1...Sd6
- 2.Se7#
- 1...Sa7
- 2.Se7#
- 1...Se7
- 2.Sxe7#
- 1...f5+!
- 1...Kf5
- 1.Kb1?
- Keys
- 1.Qb6!
- 1...f5+
- 2.Se5#
- 1...Kf5
- 2.Qb1#
- 1...Sxb6
- 2.Se7#
- 1...c4
- 2.Qg1#
- 1...Bh6
- 2.Bh7#
- 1...Bf8
- 2.Bh7#
- 1...Bh8
- 2.Bh7#
- 1...Sd6
- 2.Se7#
- 1...Sa7
- 2.Se7#
- 1...Se7
- 2.Sxe7#
- 1...f5+
- 1.Qb6!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- B(h);::B(H)
- S(i);N_GUARD::S(F)
- S(i);N_GUARD::S(F),XS(i)
- Tries
- Try
- K(A);P-FLIGHT
- Vars
- K(g);P_SPINP(c),S_FLIGHT::QAB(C)
- B(h);::B(H)
- S(i);N_GUARD::S(F)
- S(i);N_GUARD::S(F),XS(i)
- Refutation
- P(c);
- Try
- K(A);P-FLIGHT
- Vars
- B(h);::B(H)
- S(i);N_GUARD::S(F)
- S(i);N_GUARD::S(F),XS(i)
- Refutation
- P(c);
- Try
- B(B);
- Vars
- B(h);::B(H)
- S(i);N_GUARD::S(F)
- S(i);N_GUARD::S(F),XS(i)
- Refutation
- P(c);
- Try
- B(B);
- Vars
- B(h);::B(H)
- S(i);N_GUARD::S(F)
- S(i);N_GUARD::S(F),XS(i)
- Refutation
- P(c);
- Try
- B(H);CHECK
- Refutation
- K(g);S_FLIGHT
- Try
- R(E);XP(c)
- Vars
- B(h);::B(H)
- S(i);N_GUARD::S(F)
- S(i);N_GUARD::S(F),XS(i)
- Refutation
- P(e);
- Try
- R(E);XP(e)
- Vars
- B(h);::B(H)
- S(i);N_GUARD::S(F)
- S(i);N_GUARD::S(F),XS(i)
- Refutation
- P(c);
- Try
- R(G);P_PINP(f)
- Threat
- DUALS(2)
- Vars
- S(i);N_GUARD,N_SPINP(f),XR(G)::S(F)
- B(h);N_GUARD::QAR1(C),XP(f)
- S(i);N_GUARD::S(F),XS(i)
- Refutation
- B(h);
- Try
- R(G);
- Vars
- S(i);N_GUARD,XR(G)::S(F)
- B(h);::B(H)
- S(i);N_GUARD::S(F)
- S(i);N_GUARD::S(F),XS(i)
- Refutation
- P(c);
- Try
- R(G);
- Vars
- B(h);::B(H)
- S(i);N_GUARD::S(F)
- S(i);N_GUARD::S(F),XS(i)
- Refutation
- P(c);
- Try
- R(G);
- Vars
- B(h);::B(H)
- S(i);N_GUARD::S(F)
- S(i);N_GUARD::S(F),XS(i)
- Refutation
- P(c);
- Try
- R(G);CHECK,XB(h)
- Refutation
- K(g);P-FLIGHT,P_SPINP(f),XR(G)
- Try
- Q(C);
- Vars
- B(h);::B(H)
- S(i);N_GUARD::S(F)
- S(i);N_GUARD::S(F),XS(i)
- Refutation
- P(c);
- Try
- Q(C);
- Vars
- K(g);P_SPINP(c),S_FLIGHT::QAB(C)
- P(c);::QAR(C)
- B(h);::B(H)
- S(i);N_GUARD::S(F)
- S(i);N_GUARD::S(F),XS(i)
- Refutation
- P(c);XQ(C)
- Try
- Q(C);
- Vars
- B(h);::B(H)
- S(i);N_GUARD::S(F)
- S(i);N_GUARD::S(F),XS(i)
- Refutation
- P(f);XQ(C)
- Try
- Q(C);
- Vars
- B(h);::B(H)
- S(i);N_GUARD::S(F)
- S(i);N_GUARD::S(F),XS(i)
- Refutation
- P(f);CHECK
- Try
- Q(C);
- Vars
- B(h);::B(H)
- S(i);N_GUARD::S(F)
- S(i);N_GUARD::S(F),XS(i)
- Refutation
- P(f);CHECK
- Try
- Q(C);CHECK
- Refutation
- P(a);XQ(C)
- Try
- Q(C);
- Vars
- K(g);P_SPINP(c),S_FLIGHT::QAB(C)
- P(c);::R1(G),XB(h)
- B(h);::B(H)
- S(i);N_GUARD::S(F)
- S(i);N_GUARD::S(F),XS(i)
- Refutation
- P(f);CHECK
- Try
- Actual
- Q(C);
- Vars
- P(f);CHECK,SBLOCK::QAR(C)+S(F),DCHECK
- K(g);P_SPINP(c),S_FLIGHT::QAB(C)
- S(i);N_GUARD,XQ(C)::S(F)
- P(c);OGATE::QAR(C)
- B(h);::B(H)
- S(i);N_GUARD::S(F)
- S(i);N_GUARD::S(F),XS(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).