MESON Chess Problem Database
Problem Display
PID: 16640 (nB6/2rRnRK1/4P3/2N1k3/8/4N1P1/4b3/8 w - - 0 1)
Andrade, Barry Jack da Costa
Chess, 1942
#2
8 + 5
SOLUTION
- SOUND
- Sets
- 1...Bd1
- 2.Sc4#
- 1...Bf1
- 2.Sg4#
- 1...Bd3
- 2.Sg4#
- 1...Bf3
- 2.Sc4#
- 1...Bc4
- 2.Sxc4#
- 2.Sg4#
- 1...Bg4
- 2.Sc4#
- 2.Sxg4#
- 1...Bb5
- 2.Sg4#
- 1...Bh5
- 2.Sc4#
- 1...Ba6
- 2.Sg4#
- 1...Sd5
- 2.Rxd5#
- 1...Sf5+
- 2.Rxf5#
- 1...Sc6
- 2.Rd5#
- 2.Rf5#
- 1...Sg6
- 2.Rd5#
- 2.Rf5#
- 1...Sc8
- 2.Rd5#
- 2.Rf5#
- 1...Sg8
- 2.Rd5#
- 2.Rf5#
- 1...Sb6
- 2.Bxc7#
- 1...Bd1
- Tries
- 1.Kh6?
- 1...Sf5+
- 2.Rxf5#
- 1...Sd5
- 2.Rxd5#
- 1...Bd1
- 2.Sc4#
- 1...Bf1
- 2.Sg4#
- 1...Bd3
- 2.Sg4#
- 1...Bf3
- 2.Sc4#
- 1...Bc4
- 2.Sxc4#
- 2.Sg4#
- 1...Bg4
- 2.Sc4#
- 2.Sxg4#
- 1...Bb5
- 2.Sg4#
- 1...Bh5
- 2.Sc4#
- 1...Ba6
- 2.Sg4#
- 1...Sc6
- 2.Rd5#
- 2.Rf5#
- 1...Sg6
- 2.Rd5#
- 2.Rf5#
- 1...Sc8
- 2.Rd5#
- 2.Rf5#
- 1...Sb6
- 2.Bxc7#
- 1...Sg8+!
- 1...Sf5+
- 1.Kh7?
- 1...Sd5
- 2.Rxd5#
- 1...Bd1
- 2.Sc4#
- 1...Bf1
- 2.Sg4#
- 1...Bf3
- 2.Sc4#
- 1...Bc4
- 2.Sxc4#
- 2.Sg4#
- 1...Bg4
- 2.Sc4#
- 2.Sxg4#
- 1...Bb5
- 2.Sg4#
- 1...Bh5
- 2.Sc4#
- 1...Ba6
- 2.Sg4#
- 1...Sf5
- 2.Rd5#
- 2.Rxf5#
- 1...Sc6
- 2.Rd5#
- 2.Rf5#
- 1...Sg6
- 2.Rd5#
- 2.Rf5#
- 1...Sc8
- 2.Rd5#
- 2.Rf5#
- 1...Sg8
- 2.Rd5#
- 2.Rf5#
- 1...Sb6
- 2.Bxc7#
- 1...Bd3+!
- 1...Sd5
- 1.Kf8?
- 1...Sd5
- 2.Rxd5#
- 1...Bd1
- 2.Sc4#
- 1...Bf1
- 2.Sg4#
- 1...Bd3
- 2.Sg4#
- 1...Bf3
- 2.Sc4#
- 1...Bc4
- 2.Sxc4#
- 2.Sg4#
- 1...Bg4
- 2.Sc4#
- 2.Sxg4#
- 1...Bb5
- 2.Sg4#
- 1...Bh5
- 2.Sc4#
- 1...Ba6
- 2.Sg4#
- 1...Sf5
- 2.Rd5#
- 2.Rxf5#
- 1...Sc6
- 2.Rd5#
- 2.Rf5#
- 1...Sc8
- 2.Rd5#
- 2.Rf5#
- 1...Sg8
- 2.Rd5#
- 2.Rf5#
- 1...Sb6
- 2.Bxc7#
- 1...Sg6+!
- 1...Sd5
- 1.Kh8?
- 1...Sd5
- 2.Rxd5#
- 1...Bd1
- 2.Sc4#
- 1...Bf1
- 2.Sg4#
- 1...Bd3
- 2.Sg4#
- 1...Bf3
- 2.Sc4#
- 1...Bc4
- 2.Sxc4#
- 2.Sg4#
- 1...Bg4
- 2.Sc4#
- 2.Sxg4#
- 1...Bb5
- 2.Sg4#
- 1...Bh5
- 2.Sc4#
- 1...Ba6
- 2.Sg4#
- 1...Sf5
- 2.Rd5#
- 2.Rxf5#
- 1...Sc6
- 2.Rd5#
- 2.Rf5#
- 1...Sc8
- 2.Rd5#
- 2.Rf5#
- 1...Sg8
- 2.Rd5#
- 2.Rf5#
- 1...Sb6
- 2.Bxc7#
- 1...Sg6+!
- 1...Sd5
- 1.Rd8?
- 1...Sd5
- 2.Rxd5#
- 1...Bd1
- 2.Sc4#
- 1...Bf1
- 2.Sg4#
- 1...Bd3
- 2.Sg4#
- 1...Bf3
- 2.Sc4#
- 1...Bc4
- 2.Sxc4#
- 2.Sg4#
- 1...Bg4
- 2.Sc4#
- 2.Sxg4#
- 1...Bb5
- 2.Sg4#
- 1...Bh5
- 2.Sc4#
- 1...Ba6
- 2.Sg4#
- 1...Sc6
- 2.Rd5#
- 1...Sg6
- 2.Rd5#
- 1...Sc8
- 2.Rd5#
- 1...Sg8
- 2.Rd5#
- 1...Sb6
- 2.Bxc7#
- 1...Sf5+!
- 1...Sd5
- 1.Rf6?
- 1...Sf5+
- 2.Rxf5#
- 1...Bd1
- 2.Sc4#
- 1...Bf1
- 2.Sg4#
- 1...Bd3
- 2.Sg4#
- 1...Bf3
- 2.Sc4#
- 1...Bc4
- 2.Sxc4#
- 2.Sg4#
- 1...Bg4
- 2.Sc4#
- 2.Sxg4#
- 1...Bb5
- 2.Sg4#
- 1...Bh5
- 2.Sc4#
- 1...Ba6
- 2.Sg4#
- 1...Sc6
- 2.Rf5#
- 1...Sg6
- 2.Rf5#
- 1...Sc8
- 2.Rf5#
- 1...Sg8
- 2.Rf5#
- 1...Sb6
- 2.Bxc7#
- 1...Sd5!
- 1...Sf5+
- 1.Rf8?
- 1...Sf5+
- 2.Rxf5#
- 1...Bd1
- 2.Sc4#
- 1...Bf1
- 2.Sg4#
- 1...Bd3
- 2.Sg4#
- 1...Bf3
- 2.Sc4#
- 1...Bc4
- 2.Sxc4#
- 2.Sg4#
- 1...Bg4
- 2.Sc4#
- 2.Sxg4#
- 1...Bb5
- 2.Sg4#
- 1...Bh5
- 2.Sc4#
- 1...Ba6
- 2.Sg4#
- 1...Sc6
- 2.Rf5#
- 1...Sg6
- 2.Rf5#
- 1...Sc8
- 2.Rf5#
- 1...Sg8
- 2.Rf5#
- 1...Sb6
- 2.Bxc7#
- 1...Sd5!
- 1...Sf5+
- 1.Kh6?
- Keys
- 1.Rf4!
- threat
- 2.Re4#
- 1...Sf5+
- 2.Rxf5#
- 1...Bd3
- 2.Sg4#
- 1...Bf3
- 2.Sc4#
- threat
- 1.Rf4!
FEATURES
- Static
- TYPE = BLOCK_THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 7
- Sets
- B(a);N_GUARD::S(A)
- S(d);N_GUARD::R1(E),XS(d)
- S(d);CHECK,N_GUARD::R1(F),XS(d)
- S(e);N_GUARD::B(H),XR(c)
- Tries
- Try
- K(G);S_FLIGHT
- Vars
- S(d);CHECK,N_GUARD::R1(F),XS(d)
- S(d);N_GUARD::R1(E),XS(d)
- B(a);N_GUARD::S(A)
- S(e);N_GUARD::B(H),XR(c)
- Refutation
- S(d);CHECK
- Try
- K(G);P-FLIGHT
- Vars
- S(d);N_GUARD::R1(E),XS(d)
- B(a);N_GUARD::S(A)
- S(e);N_GUARD::B(H),XR(c)
- Refutation
- B(a);CHECK
- Try
- K(G);S_FLIGHT
- Vars
- S(d);N_GUARD::R1(E),XS(d)
- B(a);N_GUARD::S(A)
- S(e);N_GUARD::B(H),XR(c)
- Refutation
- S(d);CHECK
- Try
- K(G);S_FLIGHT
- Vars
- S(d);N_GUARD::R1(E),XS(d)
- B(a);N_GUARD::S(A)
- S(e);N_GUARD::B(H),XR(c)
- Refutation
- S(d);CHECK
- Try
- R(E);
- Vars
- S(d);N_GUARD,P_PINR(F)::R1(E),XS(d)
- B(a);N_GUARD::S(A)
- S(d);N_GUARD,P_PINR(F)::R1(E)
- S(e);N_GUARD::B(H),XR(c)
- Refutation
- S(d);CHECK,P_PINR(F)
- Try
- R(F);
- Vars
- S(d);CHECK,N_GUARD,P_PINR(E)::R1(F),XS(d)
- B(a);N_GUARD::S(A)
- S(d);N_GUARD,P_PINR(E)::R1(F)
- S(e);N_GUARD::B(H),XR(c)
- Refutation
- S(d);P_PINR(E)
- Try
- R(F);
- Vars
- S(d);CHECK,N_GUARD,P_PINR(E)::R1(F),XS(d)
- B(a);N_GUARD::S(A)
- S(d);N_GUARD,P_PINR(E)::R1(F)
- S(e);N_GUARD::B(H),XR(c)
- Refutation
- S(d);P_PINR(E)
- Try
- Actual
- R(F);
- Threat
- R1(F)
- Vars
- S(d);CHECK,N_GUARD,P_PINR(E)::R1(F),XS(d)
- B(a);N_GUARD::S(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).