MESON Chess Problem Database
Problem Display
PID: 187611 (5b2/4pp2/2N1nP2/3RBk1P/2K3pP/2N1pr2/4PPB1/8 w - - 0 1)
Krepelka, Milan
Pravo lidu, 1909
#2
11 + 8
| 6490 | yacpdb | 2019 |
SOLUTION
- SOUND
- Sets
- 1...Rxf2
- 2.Be4#
- 1...Rg3
- 2.Be4#
- 1...Rh3
- 2.Be4#
- 1...Rf4+
- 2.Bd4#
- 1...Bh6
- 2.Sxe7#
- 1...Bg7
- 2.Sxe7#
- 1...Sd4
- 2.Sxd4#
- 1...Sf4
- 2.Sd4#
- 1...Sc5
- 2.Sd4#
- 1...Sg5
- 2.Sd4#
- 1...Sc7
- 2.Sd4#
- 1...Sg7
- 2.Sd4#
- 1...Sd8
- 2.Sd4#
- 1...exf2
- 2.e4#
- 1...g3
- 2.Bh3#
- 1...exf6
- 2.Bh2#
- 2.Bg3#
- 2.Bd6#
- 2.Bc7#
- 2.Bb8#
- 1...Rxf2
- Tries
- 1.Kb3?
- 1...Sd4+
- 2.Sxd4#
- 1...Rxf2
- 2.Be4#
- 1...exf2
- 2.e4#
- 1...exf6
- 2.Bh2#
- 2.Bg3#
- 2.Bd6#
- 2.Bc7#
- 2.Bb8#
- 1...Sf4
- 2.Sd4#
- 1...Sg5
- 2.Sd4#
- 1...Sc7
- 2.Sd4#
- 1...Sg7
- 2.Sd4#
- 1...Sd8
- 2.Sd4#
- 1...g3
- 2.Bh3#
- 1...Rg3
- 2.Be4#
- 1...Rh3
- 2.Be4#
- 1...Rf4
- 2.Bd4#
- 1...Bh6
- 2.Sxe7#
- 1...Bg7
- 2.Sxe7#
- 1...Sc5+!
- 1...Sd4+
- 1.Kb5?
- 1...Sd4+
- 2.Sxd4#
- 1...Rxf2
- 2.Be4#
- 1...exf2
- 2.e4#
- 1...exf6
- 2.Bh2#
- 2.Bg3#
- 2.Bd6#
- 2.Bc7#
- 2.Bb8#
- 1...Sf4
- 2.Sd4#
- 1...Sc5
- 2.Sd4#
- 1...Sg5
- 2.Sd4#
- 1...Sg7
- 2.Sd4#
- 1...Sd8
- 2.Sd4#
- 1...g3
- 2.Bh3#
- 1...Rg3
- 2.Be4#
- 1...Rh3
- 2.Be4#
- 1...Rf4
- 2.Bd4#
- 1...Bh6
- 2.Sxe7#
- 1...Bg7
- 2.Sxe7#
- 1...Sc7+!
- 1...Sd4+
- 1.Bh1?
- 1...Rf4+
- 2.Bd4#
- 1...Rxf2
- 2.Be4#
- 1...exf2
- 2.e4#
- 1...exf6
- 2.Bh2#
- 2.Bg3#
- 2.Bd6#
- 2.Bc7#
- 2.Bb8#
- 1...Sd4
- 2.Sxd4#
- 1...Sf4
- 2.Sd4#
- 1...Sc5
- 2.Sd4#
- 1...Sg5
- 2.Sd4#
- 1...Sc7
- 2.Sd4#
- 1...Sg7
- 2.Sd4#
- 1...Sd8
- 2.Sd4#
- 1...Rg3
- 2.Be4#
- 1...Rh3
- 2.Be4#
- 1...Bh6
- 2.Sxe7#
- 1...Bg7
- 2.Sxe7#
- 1...g3!
- 1...Rf4+
- 1.fxe3?
- threat
- 2.Bd4#
- 2.e4#
- 1...Rf4+
- 2.Bd4#
- 1...Sd4
- 2.Sxd4#
- 1...Sf4
- 2.Sd4#
- 1...Sc5
- 2.Sd4#
- 1...Sg5
- 2.Sd4#
- 1...Sc7
- 2.Sd4#
- 1...Sg7
- 2.Sd4#
- 1...Sd8
- 2.Sd4#
- 1...g3
- 2.Bh3#
- 1...Rxe3!
- threat
- 1.Kb3?
- Keys
- 1.Kb4!
- 1...Rf4+
- 2.Bd4#
- 1...exf6+
- 2.Bd6#
- 1...Rxf2
- 2.Be4#
- 1...exf2
- 2.e4#
- 1...Sd4
- 2.Sxd4#
- 1...Sf4
- 2.Sd4#
- 1...Sc5
- 2.Sd4#
- 1...Sg5
- 2.Sd4#
- 1...Sc7
- 2.Sd4#
- 1...Sg7
- 2.Sd4#
- 1...Sd8
- 2.Sd4#
- 1...g3
- 2.Bh3#
- 1...Rg3
- 2.Be4#
- 1...Rh3
- 2.Be4#
- 1...Bh6
- 2.Sxe7#
- 1...Bg7
- 2.Sxe7#
- 1...Rf4+
- 1.Kb4!
FEATURES
- Static
- TYPE = WAITER
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- R(b);OGATE,XP(B)::B(C)
- R(b);OGATE::B(C)
- R(b);CHECK,SBLOCK::R(G)+B(H)
- B(h);N_GUARD::S(J),XP(f)
- S(e);N_GUARD::S(J),XS(e)
- S(e);N_GUARD::S(J)
- P(a);OGATE,XP(B)::P(A)
- P(c);OGATEB::B(C)
- Tries
- Try
- K(E);S_FLIGHT
- Vars
- S(e);CHECK,N_GUARD::S(J),XS(e)
- R(b);OGATE,XP(B)::B(C)
- P(a);OGATE,P_PINS(D),XP(B)::P(A)
- S(e);N_GUARD::S(J)
- P(c);OGATEB::B(C)
- R(b);OGATE::B(C)
- R(b);SBLOCK::R(G)+B(H)
- B(h);N_GUARD::S(J),XP(f)
- Refutation
- S(e);CHECK
- Try
- K(E);S_FLIGHT
- Vars
- S(e);CHECK,N_GUARD::S(J),XS(e)
- R(b);OGATE,XP(B)::B(C)
- P(a);OGATE,XP(B)::P(A)
- S(e);N_GUARD::S(J)
- P(c);OGATEB::B(C)
- R(b);OGATE::B(C)
- R(b);SBLOCK::R(G)+B(H)
- B(h);N_GUARD::S(J),XP(f)
- Refutation
- S(e);CHECK
- Try
- B(C);
- Vars
- R(b);CHECK,SBLOCK::R(G)+B(H)
- R(b);OGATE,XP(B)::B(C)
- P(a);OGATE,XP(B)::P(A)
- S(e);N_GUARD::S(J),XS(e)
- S(e);N_GUARD::S(J)
- R(b);OGATE::B(C)
- B(h);N_GUARD::S(J),XP(f)
- Refutation
- P(c);
- Try
- P(B);XP(a)
- Threat
- DUALS(2)
- Vars
- R(b);CHECK::R(G)+B(H)
- S(e);N_GUARD::S(J),XS(e)
- S(e);N_GUARD::S(J)
- P(c);OGATEB::B(C)
- Refutation
- R(b);XP(B)
- Try
- Actual
- K(E);P-FLIGHT
- Vars
- R(b);CHECK,SBLOCK::R(G)+B(H)
- P(f);CHECK,SBLOCK,XP(K)::R(G)+B(H)
- R(b);OGATE,XP(B)::B(C)
- P(a);OGATE,XP(B)::P(A)
- S(e);N_GUARD::S(J),XS(e)
- S(e);N_GUARD::S(J)
- P(c);OGATEB::B(C)
- R(b);OGATE::B(C)
- B(h);N_GUARD::S(J),XP(f)
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).