MESON Chess Problem Database
Problem Display
PID: 79074 (5N1B/8/1np1B3/K3P3/n2kP3/R1RP4/P1P4p/5Nbb w - - 0 1)
Hirschenson, Aaron
Die Schwalbe, 2007
#2
12 + 7
SOLUTION
- SOUND
- Sets
- 1...Sc4+
- 2.Rxc4#
- 1...Sd5
- 2.Rc4#
- 1...Sd7
- 2.Rc4#
- 1...Sa8
- 2.Rc4#
- 1...Sc8
- 2.Rc4#
- 1...Sc4+
- Tries
- 1.Bb3?
- threat
- 2.e6#
- 1...Sc4+
- 2.Rxc4#
- 1...Sxc3
- 2.Se6#
- 1...Sd5
- 2.Rc4#
- 1...Sd7
- 2.Rc4#
- 1...Kxc3!
- threat
- 1.Bh3?
- threat
- 2.Se6#
- 2.e6#
- 1...Sc4+
- 2.Rxc4#
- 1...Sxc3
- 2.Se6#
- 1...Sc5
- 2.e6#
- 1...Sd5
- 2.Se6#
- 2.Rc4#
- 1...Sd7
- 2.Se6#
- 2.Rc4#
- 1...Bxe4!
- threat
- 1.Bg4?
- threat
- 2.Se6#
- 2.e6#
- 1...Sc4+
- 2.Rxc4#
- 1...Sxc3
- 2.Se6#
- 1...Sc5
- 2.e6#
- 1...Sd5
- 2.Se6#
- 2.Rc4#
- 1...Sd7
- 2.Se6#
- 2.Rc4#
- 1...Bxe4!
- threat
- 1.Bd5?
- threat
- 2.Se6#
- 2.e6#
- 1...Sc4+
- 2.Rxc4#
- 1...Sxc3
- 2.Se6#
- 1...Sxd5
- 2.Se6#
- 2.Rc4#
- 1...Sc5
- 2.e6#
- 1...Sd7
- 2.Se6#
- 2.Rc4#
- 1...Bxe4!
- threat
- 1.Bf5?
- threat
- 2.Se6#
- 2.e6#
- 1...Sc4+
- 2.Rxc4#
- 1...Sxc3
- 2.Se6#
- 1...Sc5
- 2.e6#
- 1...Sd5
- 2.Se6#
- 2.Rc4#
- 1...Sd7
- 2.Se6#
- 2.Rc4#
- 1...Bxe4!
- threat
- 1.Bd7?
- threat
- 2.Se6#
- 2.e6#
- 1...Sc4+
- 2.Rxc4#
- 1...Sxc3
- 2.Se6#
- 1...Sxd7
- 2.Se6#
- 2.Rc4#
- 1...Sc5
- 2.e6#
- 1...Sd5
- 2.Se6#
- 2.Rc4#
- 1...Bxe4!
- threat
- 1.Bf7?
- threat
- 2.Se6#
- 2.e6#
- 1...Sc4+
- 2.Rxc4#
- 1...Sxc3
- 2.Se6#
- 1...Sc5
- 2.e6#
- 1...Sd5
- 2.Se6#
- 2.Rc4#
- 1...Sd7
- 2.Se6#
- 2.Rc4#
- 1...Bxe4!
- threat
- 1.Bc8?
- threat
- 2.Se6#
- 2.e6#
- 1...Sc4+
- 2.Rxc4#
- 1...Sxc3
- 2.Se6#
- 1...Sc5
- 2.e6#
- 1...Sd5
- 2.Se6#
- 2.Rc4#
- 1...Sd7
- 2.Se6#
- 2.Rc4#
- 1...Bxe4!
- threat
- 1.Bg8?
- threat
- 2.Se6#
- 2.e6#
- 1...Sc4+
- 2.Rxc4#
- 1...Sxc3
- 2.Se6#
- 1...Sc5
- 2.e6#
- 1...Sd5
- 2.Se6#
- 2.Rc4#
- 1...Sd7
- 2.Se6#
- 2.Rc4#
- 1...Bxe4!
- threat
- 1.Rxa4+?
- 1...Sxa4
- 2.Rc4#
- 1...Sc4+
- 2.Rcxc4#
- 2.Raxc4#
- 1...Kxc3!
- 1...Sxa4
- 1.Bb3?
- Keys
- 1.Bc4!
- threat
- 2.Se6#
- 1...Sxc4+
- 2.Rxc4#
- 1...Kc5
- 2.Se6#
- 1...Sc5
- 2.e6#
- threat
- 1.Bc4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 4
- Sets
- S(f);CHECK,N_GUARD::R1(E),XS(f)
- S(f);N_GUARD::R1(E)
- Tries
- Try
- B(J);
- Threat
- B(L)+P(I)
- Vars
- S(f);CHECK,N_GUARD::R1(E),XS(f)
- S(d);SBLOCK,XR(E)::S(K)
- S(f);N_GUARD::R1(E)
- Refutation
- K(e);S_FLIGHT,XR(E)
- Try
- B(J);
- Threat
- DUALS(2)
- Vars
- S(f);CHECK,N_GUARD::R1(E),XS(f)
- S(d);XR(E)::S(K)
- S(d);::B(L)+P(I)
- Refutation
- B(b);XP(G)
- Try
- B(J);
- Threat
- DUALS(2)
- Vars
- S(f);CHECK,N_GUARD::R1(E),XS(f)
- S(d);XR(E)::S(K)
- S(d);::B(L)+P(I)
- Refutation
- B(b);XP(G)
- Try
- B(J);
- Threat
- DUALS(2)
- Vars
- S(f);CHECK,N_GUARD::R1(E),XS(f)
- S(d);XR(E)::S(K)
- S(d);::B(L)+P(I)
- Refutation
- B(b);XP(G)
- Try
- B(J);
- Threat
- DUALS(2)
- Vars
- S(f);CHECK,N_GUARD::R1(E),XS(f)
- S(d);XR(E)::S(K)
- S(d);::B(L)+P(I)
- Refutation
- B(b);XP(G)
- Try
- B(J);
- Threat
- DUALS(2)
- Vars
- S(f);CHECK,N_GUARD::R1(E),XS(f)
- S(d);XR(E)::S(K)
- S(d);::B(L)+P(I)
- Refutation
- B(b);XP(G)
- Try
- B(J);
- Threat
- DUALS(2)
- Vars
- S(f);CHECK,N_GUARD::R1(E),XS(f)
- S(d);XR(E)::S(K)
- S(d);::B(L)+P(I)
- Refutation
- B(b);XP(G)
- Try
- B(J);
- Threat
- DUALS(2)
- Vars
- S(f);CHECK,N_GUARD::R1(E),XS(f)
- S(d);XR(E)::S(K)
- S(d);::B(L)+P(I)
- Refutation
- B(b);XP(G)
- Try
- B(J);
- Threat
- DUALS(2)
- Vars
- S(f);CHECK,N_GUARD::R1(E),XS(f)
- S(d);XR(E)::S(K)
- S(d);::B(L)+P(I)
- Refutation
- B(b);XP(G)
- Try
- R(D);CHECK,XS(d)
- Vars
- S(f);N_GUARD,XR(D)::R1(E)
- Refutation
- K(e);S_FLIGHT,XR(E)
- Try
- Actual
- B(J);
- Threat
- S(K)
- Vars
- S(f);CHECK,OGATE,XB(J)::R1(E),XS(f)
- K(e);S_FLIGHT::S(K)
- S(d);SBLOCK::B(L)+P(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).