MESON Chess Problem Database
Problem Display
PID: 49382 (2k5/KRNp4/p6r/8/3Qbn1B/4R3/7b/8 w - - 0 1)
Sommer, Bruno Oswald
Schach-Express, 1949
#2
6 + 7
SOLUTION
- SOUND
- Sets
- 1...Rb6
- 2.Qh8#
- 1...Rc6
- 2.Qh8#
- 1...Rd6
- 2.Qh8#
- 1...Rh8
- 2.Qxh8#
- 1...Bb1
- 2.Re8#
- 1...Bh1
- 2.Re8#
- 1...Bc2
- 2.Re8#
- 1...Bg2
- 2.Re8#
- 1...Bd3
- 2.Re8#
- 1...Bf3
- 2.Re8#
- 1...Bd5
- 2.Re8#
- 1...Bf5
- 2.Re8#
- 1...Bc6
- 2.Re8#
- 1...Bh7
- 2.Re8#
- 1...Rb6
- Tries
- 1.Sb5?
- threat
- 2.Rc7#
- 2.Rb8#
- 2.Qxd7#
- 1...Rxh4
- 2.Rb8#
- 2.Qxd7#
- 1...Bxb7
- 2.Re8#
- 1...axb5
- 2.Qxd7#
- 1...Rf6
- 2.Rb8#
- 2.Qxd7#
- 1...Rb6
- 2.Rc7#
- 2.Qh8#
- 2.Qxd7#
- 1...Rc6
- 2.Rb8#
- 2.Qh8#
- 2.Qxd7#
- 1...Rd6
- 2.Sxd6#
- 2.Rc7#
- 2.Rb8#
- 2.Qh8#
- 1...Rh7
- 2.Sd6#
- 2.Rc7#
- 2.Rb8#
- 1...Bd5
- 2.Re8#
- 2.Rc7#
- 2.Rb8#
- 1...Bf5
- 2.Re8#
- 2.Rc7#
- 2.Rb8#
- 1...Bc6
- 2.Re8#
- 2.Rc7#
- 2.Rb8#
- 1...Se2
- 2.Qxd7#
- 1...Sg2
- 2.Qxd7#
- 1...Sd3
- 2.Qxd7#
- 1...Sh3
- 2.Qxd7#
- 1...Sh5
- 2.Qxd7#
- 1...Se6
- 2.Qxd7#
- 1...Sg6
- 2.Qxd7#
- 1...d5
- 2.Rc7#
- 1...d6
- 2.Rc7#
- 1...Sd5!
- threat
- 1.Sa8?
- threat
- 2.Rc7#
- 2.Rb8#
- 2.Qxd7#
- 1...Rxh4
- 2.Rb8#
- 2.Qxd7#
- 1...Bxb7
- 2.Re8#
- 1...Rf6
- 2.Rb8#
- 2.Qxd7#
- 1...Rb6
- 2.Sxb6#
- 2.Rc7#
- 2.Qh8#
- 2.Qxd7#
- 1...Rc6
- 2.Rb8#
- 2.Qh8#
- 2.Qxd7#
- 1...Rd6
- 2.Rc7#
- 2.Rb8#
- 2.Qh8#
- 1...Rh7
- 2.Sb6#
- 2.Rc7#
- 2.Rb8#
- 1...Bd5
- 2.Re8#
- 2.Rc7#
- 2.Rb8#
- 1...Bf5
- 2.Re8#
- 2.Rc7#
- 2.Rb8#
- 1...Bc6
- 2.Sb6#
- 2.Re8#
- 2.Rc7#
- 2.Rb8#
- 1...Se2
- 2.Qxd7#
- 1...Sg2
- 2.Qxd7#
- 1...Sd3
- 2.Qxd7#
- 1...Sh3
- 2.Qxd7#
- 1...Sh5
- 2.Qxd7#
- 1...Se6
- 2.Sb6#
- 2.Qxd7#
- 1...Sg6
- 2.Sb6#
- 2.Qxd7#
- 1...d5
- 2.Rc7#
- 1...d6
- 2.Sb6#
- 2.Rc7#
- 1...Sd5!
- threat
- 1.Qc5?
- threat
- 2.Rb8#
- 2.Qf8#
- 1...Bxb7
- 2.Re8#
- 1...Rf6
- 2.Rb8#
- 1...d5
- 2.Se6#
- 1...Rb6
- 2.Qf8#
- 1...Rc6
- 2.Qf8#
- 1...Rd6
- 2.Rb8#
- 1...Re6
- 2.Rb8#
- 1...Rh8
- 2.Sd5#
- 2.Rb8#
- 1...Bc6
- 2.Re8#
- 2.Qf8#
- 1...Bg6
- 2.Sb5#
- 2.Sd5#
- 2.Sxa6#
- 2.Se6#
- 2.Sa8#
- 2.Se8#
- 2.Rb8#
- 1...Se6
- 2.Rb8#
- 1...Sg6
- 2.Rb8#
- 1...d6!
- threat
- 1.Qe5?
- threat
- 2.Rb8#
- 2.Qe8#
- 1...d5
- 2.Qe8#
- 1...d6
- 2.Qe8#
- 1...Rb6
- 2.Qh8#
- 2.Qe8#
- 1...Rd6
- 2.Qh8#
- 2.Qe8#
- 1...Re6
- 2.Rb8#
- 1...Rh8
- 2.Rb8#
- 2.Qxh8#
- 1...Bg6
- 2.Rb8#
- 1...Se6
- 2.Rb8#
- 1...Bxb7!
- threat
- 1.Qc4?
- threat
- 2.Rb8#
- 2.Qg8#
- 1...Bxb7
- 2.Re8#
- 1...Rf6
- 2.Rb8#
- 1...d6
- 2.Sd5#
- 1...Sd5
- 2.Rb8#
- 1...Rb6
- 2.Qg8#
- 1...Rc6
- 2.Qg8#
- 1...Re6
- 2.Rb8#
- 1...Rg6
- 2.Rb8#
- 1...Rh8
- 2.Sd5#
- 2.Rb8#
- 1...Bd5
- 2.Re8#
- 2.Rb8#
- 1...Bc6
- 2.Re8#
- 2.Qg8#
- 1...Bg6
- 2.Sb5#
- 2.Sd5#
- 2.Sxa6#
- 2.Se6#
- 2.Sa8#
- 2.Se8#
- 2.Rb8#
- 1...Bh7
- 2.Se6#
- 2.Re8#
- 2.Rb8#
- 1...Se6
- 2.Rb8#
- 1...Sg6
- 2.Rb8#
- 1...d5!
- threat
- 1.Qd6?
- threat
- 2.Rb8#
- 2.Qf8#
- 1...Bxb7
- 2.Re8#
- 1...Rf6
- 2.Rb8#
- 1...Re6
- 2.Rb8#
- 1...Rh8
- 2.Rb8#
- 1...Bg6
- 2.Rb8#
- 1...Se6
- 2.Rb8#
- 1...Sg6
- 2.Rb8#
- 1...Rxd6!
- threat
- 1.Sb5?
- Keys
- 1.Qc3!
- threat
- 2.Rb8#
- 1...Bxb7
- 2.Re8#
- 1...d5
- 2.Se6#
- 1...d6
- 2.Sd5#
- 1...Rb6
- 2.Qh8#
- 1...Rc6
- 2.Qh8#
- 1...Bc6
- 2.Re8#
- threat
- 1.Qc3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 11
- Sets
- R(e);N_GUARD::QAR(B)
- R(e);N_GUARD::QAR(B),XR(e)
- B(b);OGATE::R(A)
- Tries
- Try
- S(F);
- Threat
- DUALS(3)
- Vars
- B(b);OGATE,XR(E)::R(A)
- P(d);XS(F)::QAB1(B),XP(f)
- S(c);::QAB1(B),XP(f)
- P(f);::R1(E)
- Refutation
- S(c);
- Try
- S(F);
- Threat
- DUALS(3)
- Vars
- B(b);OGATE,XR(E)::R(A)
- S(c);::QAB1(B),XP(f)
- P(f);::R1(E)
- Refutation
- S(c);
- Try
- Q(B);
- Threat
- DUALS(2)
- Vars
- B(b);OGATE,XR(E)::R(A)
- R(e);::R1(E)
- P(f);S_CUTB(b)::QAR(B)+S(F)
- R(e);::QAR(B)
- S(c);::R1(E)
- Refutation
- P(f);
- Try
- Q(B);
- Threat
- DUALS(2)
- Vars
- P(f);::QAR2(B)
- R(e);::R1(E)
- B(b);::R1(E)
- S(c);::R1(E)
- Refutation
- B(b);XR(E)
- Try
- Q(B);
- Threat
- DUALS(2)
- Vars
- B(b);OGATE,XR(E)::R(A)
- R(e);::R1(E)
- P(f);S_CUTR(e)::QAR(B)+S(F)
- S(c);::R1(E)
- R(e);::QAR(B)
- Refutation
- P(f);
- Try
- Q(B);
- Threat
- DUALS(2)
- Vars
- B(b);OGATE,XR(E)::R(A)
- R(e);::R1(E)
- B(b);::R1(E)
- S(c);::R1(E)
- Refutation
- R(e);XQ(B)
- Try
- Actual
- Q(B);
- Threat
- R1(E)
- Vars
- B(b);OGATE,XR(E)::R(A)
- P(f);S_CUTB(b)::QAR(B)+S(F)
- P(f);S_CUTR(e)::QAR(B)+S(F)
- R(e);N_GUARD::QAR(B)
- B(b);OGATE::R(A)
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).