MESON Chess Problem Database
Problem Display
PID: 231591 (8/3p4/1p1Pp3/2b1Rp1B/N1R5/pP1kP3/5P2/1n1K1b2 w - - 0 1)
Lanyi, Jozsef
Ujsag, 1927
#2
9 + 9
| 6490 | yacpdb | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Be2+
- 2.Bxe2#
- 1...Bg2
- 2.Be2#
- 1...Bh3
- 2.Be2#
- 1...Bxe3
- 2.Rxe3#
- 1...Bb4
- 2.Rd4#
- 1...Bd4
- 2.Rxd4#
- 1...Bxd6
- 2.Rd4#
- 1...Sd2
- 2.Rc3#
- 1...Sc3+
- 2.Rxc3#
- 1...a2
- 2.Sb2#
- 1...f4
- 2.Bg6#
- 1...b5
- 2.Sxc5#
- 1...Be2+
- Tries
- 1.Rexc5?
- threat
- 2.Rd4#
- 1...Be2+
- 2.Bxe2#
- 1...bxc5
- 2.Sxc5#
- 1...e5
- 2.Rd5#
- 1...Sc3+!
- threat
- 1.Rd5+?
- 1...Bd4
- 2.Rcxd4#
- 2.Rdxd4#
- 1...exd5!
- 1...Bd4
- 1.Rxe6?
- 1...Be2+
- 2.Bxe2#
- 1...Sc3+
- 2.Rxc3#
- 1...Bxe3
- 2.Rxe3#
- 1...Bxd6
- 2.Rd4#
- 2.Rxd6#
- 1...Bg2
- 2.Be2#
- 1...Bh3
- 2.Be2#
- 1...Bb4
- 2.Rd4#
- 1...Bd4
- 2.Rxd4#
- 1...Sd2
- 2.Rc3#
- 1...a2
- 2.Sb2#
- 1...f4
- 2.Bg6#
- 1...b5
- 2.Sxc5#
- 1...dxe6!
- 1...Be2+
- 1.f4?
- 1...Be2+
- 2.Bxe2#
- 1...Sc3+
- 2.Rxc3#
- 1...Bxd6
- 2.Rd4#
- 1...Bg2
- 2.Be2#
- 1...Bh3
- 2.Be2#
- 1...Bb4
- 2.Rd4#
- 1...Bd4
- 2.Rxd4#
- 1...Sd2
- 2.Rc3#
- 1...a2
- 2.Sb2#
- 1...b5
- 2.Sxc5#
- 1...Bxe3!
- 1...Be2+
- 1.Rexc5?
- Keys
- 1.Bf3!
- 1...Be2+
- 2.Bxe2#
- 1...Sc3+
- 2.Rxc3#
- 1...Bxe3
- 2.Rxe3#
- 1...Bxd6
- 2.Rd4#
- 1...Bg2
- 2.Be2#
- 1...Bh3
- 2.Be2#
- 1...Bb4
- 2.Rd4#
- 1...Bd4
- 2.Rxd4#
- 1...Sd2
- 2.Rc3#
- 1...a2
- 2.Sb2#
- 1...f4
- 2.Be4#
- 1...b5
- 2.Sxc5#
- 1...Be2+
- 1.Bf3!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 1
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- B(b);CHECK,N_GUARD::B(H),XB(b)
- B(b);N_GUARD::B(H)
- B(e);OGATE,XP(D)::R1(G),XB(e)
- B(e);N_GUARD::R1(F)
- B(e);N_GUARD::R1(F),XB(e)
- B(e);N_GUARD,XP(I)::R1(F)
- S(a);N_GUARD::R1(F)
- S(a);CHECK,N_GUARD::R1(F),XS(a)
- P(c);N_GUARD::S(E)
- P(f);OGATEB::B(H)
- P(g);N_GUARD::S(E),XB(e)
- Tries
- Try
- R(G);XB(e)
- Threat
- R1(F)
- Vars
- B(b);CHECK,N_GUARD::B(H),XB(b)
- P(g);XR(G)::S(E),XP(g)
- P(h);N_GUARD::R(G)
- Refutation
- S(a);CHECK
- Try
- R(G);CHECK
- Refutation
- P(h);XR(G)
- Try
- R(G);XP(h)
- Vars
- B(b);CHECK,N_GUARD::B(H),XB(b)
- S(a);CHECK,N_GUARD::R1(F),XS(a)
- B(e);OGATE,XP(D)::R1(G),XB(e)
- B(b);N_GUARD::B(H)
- B(e);N_GUARD::R1(F)
- B(e);N_GUARD::R1(F),XB(e)
- S(a);N_GUARD::R1(F)
- P(c);N_GUARD::S(E)
- P(f);OGATEB::B(H)
- P(g);N_GUARD::S(E),XB(e)
- Refutation
- P(i);XR(G)
- Try
- P(B);
- Vars
- B(b);CHECK,N_GUARD::B(H),XB(b)
- S(a);CHECK,N_GUARD::R1(F),XS(a)
- B(e);N_GUARD,XP(I)::R1(F)
- B(b);N_GUARD::B(H)
- B(e);N_GUARD::R1(F)
- B(e);N_GUARD::R1(F),XB(e)
- S(a);N_GUARD::R1(F)
- P(c);N_GUARD::S(E)
- P(g);N_GUARD::S(E),XB(e)
- Refutation
- B(e);XP(D)
- Try
- Actual
- B(H);
- Vars
- B(b);CHECK,N_GUARD::B(H),XB(b)
- S(a);CHECK,N_GUARD::R1(F),XS(a)
- B(e);OGATE,XP(D)::R1(G),XB(e)
- B(e);N_GUARD,XP(I)::R1(F)
- B(b);N_GUARD::B(H)
- B(e);N_GUARD::R1(F)
- B(e);N_GUARD::R1(F),XB(e)
- S(a);N_GUARD::R1(F)
- P(c);N_GUARD::S(E)
- P(f);N_GUARD::B(H)
- P(g);N_GUARD::S(E),XB(e)
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).