MESON Chess Problem Database
Problem Display
PID: 159908 (8/1Np5/8/2Rn2K1/Rn2k3/b1r1pN2/1pP1P3/1B6 w - - 0 1)
Anonymous
BCPJ (August), 1919
#2
8 + 8
SOLUTION
- SOUND
- Sets
- 1...Rxc2
- 2.Bxc2#
- 2.Rc4#
- 1...Rb3
- 2.Rc4#
- 2.cxb3#
- 2.c3#
- 1...Rd3
- 2.cxd3#
- 1...Rc4
- 2.Rxc4#
- 1...Rxc5
- 2.Sxc5#
- 2.c3#
- 1...Sf4
- 2.Re5#
- 1...Sb6
- 2.Re5#
- 1...Sf6
- 2.Re5#
- 1...Se7
- 2.Re5#
- 1...c6
- 2.Sd6#
- 1...Rxc2
- Tries
- 1.Kg4?
- 1...Rxc2
- 2.Bxc2#
- 2.Rc4#
- 1...Rxc5
- 2.Sxc5#
- 2.c3#
- 1...Rb3
- 2.Rc4#
- 2.cxb3#
- 2.c3#
- 1...Rd3
- 2.cxd3#
- 2.exd3#
- 1...Rc4
- 2.Rxc4#
- 1...Sf4
- 2.Re5#
- 1...Sb6
- 2.Re5#
- 1...Se7
- 2.Re5#
- 1...c6
- 2.Sd6#
- 1...Sf6+!
- 1...Rxc2
- 1.Sa5?
- 1...Rxc2
- 2.Bxc2#
- 2.Rc4#
- 1...Rxc5
- 2.c3#
- 1...Rb3
- 2.Rc4#
- 2.cxb3#
- 2.c3#
- 1...Rd3
- 2.cxd3#
- 1...Rc4
- 2.Rxc4#
- 1...Sf4
- 2.Re5#
- 1...Sb6
- 2.Re5#
- 1...Sf6
- 2.Re5#
- 1...Se7
- 2.Re5#
- 1...c6!
- 1...Rxc2
- 1.Sd8?
- 1...Rxc2
- 2.Bxc2#
- 2.Rc4#
- 1...Rxc5
- 2.c3#
- 1...Rb3
- 2.Rc4#
- 2.cxb3#
- 2.c3#
- 1...Rd3
- 2.cxd3#
- 1...Rc4
- 2.Rxc4#
- 1...Sf4
- 2.Re5#
- 1...Sb6
- 2.Re5#
- 1...Sf6
- 2.Re5#
- 1...Se7
- 2.Re5#
- 1...c6!
- 1...Rxc2
- 1.Rxb4+?
- 1...Rc4
- 2.Rbxc4#
- 2.Rcxc4#
- 2.c3#
- 1...Sxb4
- 2.Re5#
- 1...Bxb4!
- 1...Rc4
- 1.Rca5?
- 1...Rxc2
- 2.Sc5#
- 2.Bxc2#
- 1...Rd3
- 2.Sc5#
- 2.cxd3#
- 1...Rb3
- 2.Sc5#
- 2.cxb3#
- 2.c3#
- 1...Rc5
- 2.Sxc5#
- 2.c3#
- 1...Rc6
- 2.c3#
- 1...Sf4
- 2.Re5#
- 1...Sb6
- 2.Re5#
- 1...Sf6
- 2.Re5#
- 1...Se7
- 2.Re5#
- 1...c5
- 2.Sd6#
- 1...c6
- 2.Sd6#
- 1...Rc4!
- 1...Rxc2
- 1.Rb5?
- 1...Rxc2
- 2.Sc5#
- 2.Bxc2#
- 1...Rd3
- 2.Sc5#
- 2.cxd3#
- 1...Rb3
- 2.Sc5#
- 2.cxb3#
- 2.c3#
- 1...Rc5
- 2.Sxc5#
- 2.c3#
- 1...Rc6
- 2.c3#
- 1...Sf4
- 2.Re5#
- 1...Sb6
- 2.Re5#
- 1...Sf6
- 2.Re5#
- 1...Se7
- 2.Re5#
- 1...c5
- 2.Sd6#
- 1...c6
- 2.Sd6#
- 1...Rc4!
- 1...Rxc2
- 1.Kg4?
- Keys
- 1.Ba2!
- threat
- 2.Bxd5#
- 1...Rxc5
- 2.Sxc5#
- 1...c6
- 2.Sd6#
- 1...Rb3
- 2.Rc4#
- 1...Rd3
- 2.cxd3#
- 1...Rc4
- 2.Rxc4#
- 1...Sf4
- 2.Re5#
- 1...Sb6
- 2.Re5#
- 1...Sf6
- 2.Re5#
- 1...Se7
- 2.Re5#
- threat
- 1.Ba2!
FEATURES
- Static
- TYPE = BLOCK_THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- R(c);OGATE::P(B),XR(c)
- R(c);N_GUARD,N_SPINS(e)::R(F),XR(c)
- S(g);OGATE::R1(F)
- P(h);N_GUARD::S(H)
- Tries
- Try
- K(G);P-FLIGHT
- Vars
- R(c);N_GUARD,N_SPINS(e)::R(F),XR(c)
- S(g);OGATE::R1(F)
- P(h);N_GUARD::S(H)
- Refutation
- S(g);CHECK
- Try
- S(H);
- Vars
- R(c);OGATE,XR(F)::B(A)+P(B)
- R(c);OGATE::P(B),XR(c)
- R(c);N_GUARD,N_SPINS(e)::R(F),XR(c)
- S(g);OGATE::R1(F)
- Refutation
- P(h);
- Try
- S(H);
- Vars
- R(c);OGATE,XR(F)::B(A)+P(B)
- R(c);OGATE::P(B),XR(c)
- R(c);N_GUARD,N_SPINS(e)::R(F),XR(c)
- S(g);OGATE::R1(F)
- Refutation
- P(h);
- Try
- R(E);CHECK,XS(e)
- Vars
- S(g);OGATE,XR(E)::R1(F)
- Refutation
- B(b);XR(E)
- Try
- R(F);
- Vars
- R(c);OGATE::B(A)+P(B)
- S(g);OGATE::R1(F)
- P(h);N_GUARD::S(H)
- Refutation
- R(c);N_SPINS(e)
- Try
- R(F);
- Vars
- R(c);OGATE::B(A)+P(B)
- S(g);OGATE::R1(F)
- P(h);N_GUARD::S(H)
- Refutation
- R(c);N_SPINS(e)
- Try
- Actual
- B(A);
- Threat
- B(A),XS(g)
- Vars
- R(c);XR(F)::S(H),XR(c)
- P(h);N_GUARD::S(H)
- R(c);N_GUARD::R(F)
- R(c);OGATE::P(B),XR(c)
- R(c);N_GUARD,N_SPINS(e)::R(F),XR(c)
- S(g);OGATE::R1(F)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
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