MESON Chess Problem Database
Problem Display
PID: 71639 (3N4/6RN/8/1K1RBkbp/Q3n3/3p2P1/2p2n2/7B w - - 0 1)
Chicco, Adriano
1st Prize, L'Echiquier de Paris, 1950
#2
9 + 7
SOLUTION
- SOUND
- Sets
- 1...Bc1
- 2.Ba1#
- 2.Bb2#
- 2.Bc3#
- 2.Bd4#
- 2.Bf4#
- 2.Bd6#
- 2.Bf6#
- 2.Bc7#
- 2.Bb8#
- 1...Bd2
- 2.Ba1#
- 2.Bb2#
- 2.Bc3#
- 2.Bd4#
- 2.Bf4#
- 2.Bd6#
- 2.Bf6#
- 2.Bc7#
- 2.Bb8#
- 1...Be3
- 2.Ba1#
- 2.Bb2#
- 2.Bc3#
- 2.Bd4#
- 2.Bf4#
- 2.Bd6#
- 2.Bf6#
- 2.Bc7#
- 2.Bb8#
- 1...Bf4
- 2.Bxf4#
- 1...Bh4
- 2.Ba1#
- 2.Bb2#
- 2.Bc3#
- 2.Bd4#
- 2.Bf4#
- 2.Bd6#
- 2.Bf6#
- 2.Bc7#
- 2.Bb8#
- 1...Bf6
- 2.Bxf6#
- 1...Bh6
- 2.Ba1#
- 2.Bb2#
- 2.Bc3#
- 2.Bd4#
- 2.Bf4#
- 2.Bd6#
- 2.Bf6#
- 2.Bc7#
- 2.Bb8#
- 1...Be7
- 2.Ba1#
- 2.Bb2#
- 2.Bc3#
- 2.Bd4#
- 2.Bf4#
- 2.Bd6#
- 2.Bf6#
- 2.Bc7#
- 2.Bb8#
- 1...Sd1
- 2.Qxe4#
- 1...Sh3
- 2.Qxe4#
- 1...Sg4
- 2.Bxe4#
- 2.Qxe4#
- 1...Sd2
- 2.Ba1#
- 2.Bb2#
- 2.Bc3#
- 2.Bd6#
- 2.Bf6#
- 2.Bc7#
- 2.Bb8#
- 2.Rxg5#
- 1...Sc3+
- 2.Bxc3#
- 1...Sxg3
- 2.Ba1#
- 2.Bb2#
- 2.Bc3#
- 2.Bxg3#
- 2.Bd6#
- 2.Bf6#
- 2.Bc7#
- 2.Bb8#
- 2.Rxg5#
- 1...Sc5
- 2.Ba1#
- 2.Bb2#
- 2.Bc3#
- 2.Bd6#
- 2.Bf6#
- 2.Bc7#
- 2.Bb8#
- 2.Rxg5#
- 1...Sd6+
- 2.Bxd6#
- 1...Sf6
- 2.Bxf6#
- 2.Rxg5#
- 1...Bc1
- Tries
- 1.Ka5?
- threat
- 2.Qd7#
- 1...Bd2+
- 2.Bc3#
- 1...Kg4
- 2.Qd7#
- 1...Sc5
- 2.Ba1#
- 2.Bb2#
- 2.Bc3#
- 2.Bd6#
- 2.Bf6#
- 2.Bc7#
- 2.Bb8#
- 2.Rxg5#
- 1...Sf6
- 2.Bxf6#
- 2.Rxg5#
- 1...Bxd8+!
- threat
- 1.Ka6?
- threat
- 2.Qd7#
- 1...Kg4
- 2.Qd7#
- 1...Sf6
- 2.Bxf6#
- 2.Rxg5#
- 1...Sc5+!
- threat
- 1.Kb6?
- threat
- 2.Qd7#
- 1...Be3+
- 2.Bd4#
- 1...Kg4
- 2.Qd7#
- 1...Sc5
- 2.Ba1#
- 2.Bb2#
- 2.Bc3#
- 2.Bd6#
- 2.Bf6#
- 2.Bc7#
- 2.Bb8#
- 2.Rxg5#
- 1...Sf6
- 2.Bxf6#
- 2.Rxg5#
- 1...Bxd8+!
- threat
- 1.Bf3?
- threat
- 2.Ba1#
- 2.Bb2#
- 2.Bc3#
- 2.Bd4#
- 2.Bf4#
- 2.Bd6#
- 2.Bf6#
- 2.Bc7#
- 2.Bb8#
- 1...Sc3+
- 2.Bxc3#
- 1...Sd6+
- 2.Bxd6#
- 1...Sxg3
- 2.Ba1#
- 2.Bb2#
- 2.Bc3#
- 2.Bxg3#
- 2.Bf4#
- 2.Bd6#
- 2.Bf6#
- 2.Bc7#
- 2.Bb8#
- 2.Rxg5#
- 1...Bf4
- 2.Bxf4#
- 1...Bf6
- 2.Bxf6#
- 1...Sg4
- 2.Bxe4#
- 2.Qxe4#
- 1...Sf6
- 2.Bxf6#
- 2.Rxg5#
- 1...Bxd8!
- threat
- 1.g4+?
- 1...Sxg4
- 2.Bxe4#
- 2.Qxe4#
- 1...hxg4
- 2.Bh2#
- 2.Bg3#
- 2.Bd6#
- 2.Bc7#
- 2.Bb8#
- 1...Kxg4!
- 1...Sxg4
- 1.Ka5?
- Keys
- 1.Kb4!
- threat
- 2.Qd7#
- 1...Bd2+
- 2.Bc3#
- 1...Be7+
- 2.Bd6#
- 1...Kg4
- 2.Qd7#
- 1...Sc5
- 2.Rxg5#
- 1...Sf6
- 2.Rxg5#
- threat
- 1.Kb4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 6
- Sets
- B(f);::R(E)+B(F),XB(f)
- S(b);N_GUARD::QAB1(C),XS(d)
- S(d);CHECK::R(E)+B(F),XS(d)
- Tries
- Try
- K(D);P-FLIGHT
- Threat
- QAB(C)
- Vars
- B(f);CHECK::R(E)+B(F)
- K(e);P_SPINB(f),P_SPINS(d),S_FLIGHT::QAB(C)
- Refutation
- B(f);CHECK,XS(I)
- Try
- K(D);S_FLIGHT
- Threat
- QAB(C)
- Vars
- K(e);P_SPINB(f),P_SPINS(d),S_FLIGHT::QAB(C)
- Refutation
- S(d);CHECK
- Try
- K(D);P-FLIGHT
- Threat
- QAB(C)
- Vars
- B(f);CHECK::R(E)+B(F)
- K(e);P_SPINB(f),P_SPINS(d),S_FLIGHT::QAB(C)
- Refutation
- B(f);CHECK,XS(I)
- Try
- B(A);
- Threat
- DUALS(9)
- Vars
- S(d);CHECK::R(E)+B(F),XS(d)
- B(f);::R(E)+B(F),XB(f)
- Refutation
- B(f);XS(I)
- Try
- P(B);CHECK
- Refutation
- K(e);P_SPINB(f),P_SPINS(d),S_FLIGHT,XP(B)
- Try
- Actual
- K(D);P-FLIGHT
- Threat
- QAB(C)
- Vars
- B(f);CHECK::R(E)+B(F)
- K(e);P_SPINB(f),S_FLIGHT::QAB(C)
- S(d);N_GUARD::R1(G),XB(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).