MESON Chess Problem Database
Problem Display
PID: 88247 (1R3B2/8/4N3/pb3K2/k2pN3/pp6/8/3B4 w - - 0 1)
de Blasio, Francis JC
4th Comm., Wurzburg-75 JT, 1949
#2
6 + 6
| 70 | American Chess Problemist | 1950 |
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Bf1
- 2.S4c5#
- 2.S6c5#
- 2.Bxb3#
- 1...Be2
- 2.S4c5#
- 2.S6c5#
- 2.Bxb3#
- 1...Bd3
- 2.Sc5#
- 2.Bxb3#
- 1...Bc4
- 2.S4c5#
- 2.S6c5#
- 1...Ba6
- 2.S4c5#
- 2.S6c5#
- 2.Bxb3#
- 1...Bc6
- 2.S4c5#
- 2.S6c5#
- 2.Bxb3#
- 1...Bd7
- 2.Sc5#
- 2.Bxb3#
- 1...Be8
- 2.S4c5#
- 2.S6c5#
- 2.Bxb3#
- 1...d3
- 2.Sc3#
- 1...Bf1
- Tries
- 1.Kf4?
- 1...Bf1
- 2.S4c5#
- 2.S6c5#
- 2.Bxb3#
- 1...Be2
- 2.S4c5#
- 2.S6c5#
- 2.Bxb3#
- 1...Bd3
- 2.S4c5#
- 2.S6c5#
- 2.Bxb3#
- 1...Bc4
- 2.S4c5#
- 2.S6c5#
- 1...Ba6
- 2.S4c5#
- 2.S6c5#
- 2.Bxb3#
- 1...Bc6
- 2.S4c5#
- 2.S6c5#
- 2.Bxb3#
- 1...Bd7
- 2.S4c5#
- 2.S6c5#
- 2.Bxb3#
- 1...Be8
- 2.S4c5#
- 2.S6c5#
- 2.Bxb3#
- 1...d3
- 2.Sc3#
- 1...a2!
- 1...Bf1
- 1.Ke5?
- 1...Bf1
- 2.S4c5#
- 2.S6c5#
- 2.Bxb3#
- 1...Be2
- 2.S4c5#
- 2.S6c5#
- 2.Bxb3#
- 1...Bd3
- 2.S4c5#
- 2.S6c5#
- 2.Bxb3#
- 1...Bc4
- 2.S4c5#
- 2.S6c5#
- 1...Ba6
- 2.S4c5#
- 2.S6c5#
- 2.Bxb3#
- 1...Bc6
- 2.S4c5#
- 2.S6c5#
- 2.Bxb3#
- 1...Bd7
- 2.S4c5#
- 2.S6c5#
- 2.Bxb3#
- 1...Be8
- 2.S4c5#
- 2.S6c5#
- 2.Bxb3#
- 1...d3
- 2.Sc3#
- 1...a2!
- 1...Bf1
- 1.Kg5?
- 1...Bf1
- 2.S4c5#
- 2.S6c5#
- 2.Bxb3#
- 1...Be2
- 2.S4c5#
- 2.S6c5#
- 2.Bxb3#
- 1...Bd3
- 2.S4c5#
- 2.S6c5#
- 2.Bxb3#
- 1...Bc4
- 2.S4c5#
- 2.S6c5#
- 1...Ba6
- 2.S4c5#
- 2.S6c5#
- 2.Bxb3#
- 1...Bc6
- 2.S4c5#
- 2.S6c5#
- 2.Bxb3#
- 1...Bd7
- 2.S4c5#
- 2.S6c5#
- 2.Bxb3#
- 1...Be8
- 2.S4c5#
- 2.S6c5#
- 2.Bxb3#
- 1...d3
- 2.Sc3#
- 1...a2!
- 1...Bf1
- 1.Kf6?
- 1...Bf1
- 2.S4c5#
- 2.S6c5#
- 2.Bxb3#
- 1...Be2
- 2.S4c5#
- 2.S6c5#
- 2.Bxb3#
- 1...Bd3
- 2.S4c5#
- 2.S6c5#
- 2.Bxb3#
- 1...Bc4
- 2.S4c5#
- 2.S6c5#
- 1...Ba6
- 2.S4c5#
- 2.S6c5#
- 2.Bxb3#
- 1...Bc6
- 2.S4c5#
- 2.S6c5#
- 2.Bxb3#
- 1...Bd7
- 2.S4c5#
- 2.S6c5#
- 2.Bxb3#
- 1...Be8
- 2.S4c5#
- 2.S6c5#
- 2.Bxb3#
- 1...d3
- 2.Sc3#
- 1...a2!
- 1...Bf1
- 1.Sd2?
- threat
- 2.Bxb3#
- 1...Bc4
- 2.Sc5#
- 1...Bd3+!
- threat
- 1.Sxd4?
- threat
- 2.Sc3#
- 2.Bxb3#
- 1...Bd3
- 2.Bxb3#
- 1...Bc4
- 2.Sc3#
- 2.Sc5#
- 1...Bd7+!
- threat
- 1.Bf3?
- 1...b2
- 2.Bd1#
- 1...Bf1
- 2.S4c5#
- 2.S6c5#
- 1...Be2
- 2.S4c5#
- 2.S6c5#
- 1...Bd3
- 2.Sc5#
- 1...Bc4
- 2.S4c5#
- 2.S6c5#
- 1...Ba6
- 2.S4c5#
- 2.S6c5#
- 1...Bc6
- 2.S4c5#
- 2.S6c5#
- 1...Bd7
- 2.Sc5#
- 1...Be8
- 2.S4c5#
- 2.S6c5#
- 1...d3
- 2.Sc3#
- 1...a2!
- 1...b2
- 1.Bg4?
- 1...b2
- 2.Bd1#
- 1...Bf1
- 2.S4c5#
- 2.S6c5#
- 1...Be2
- 2.S4c5#
- 2.S6c5#
- 1...Bd3
- 2.Sc5#
- 1...Bc4
- 2.S4c5#
- 2.S6c5#
- 1...Ba6
- 2.S4c5#
- 2.S6c5#
- 1...Bc6
- 2.S4c5#
- 2.S6c5#
- 1...Bd7
- 2.Sc5#
- 1...Be8
- 2.S4c5#
- 2.S6c5#
- 1...d3
- 2.Sc3#
- 1...a2!
- 1...b2
- 1.Bh5?
- 1...b2
- 2.Bd1#
- 1...Bf1
- 2.S4c5#
- 2.S6c5#
- 1...Be2
- 2.S4c5#
- 2.S6c5#
- 1...Bd3
- 2.Sc5#
- 1...Bc4
- 2.S4c5#
- 2.S6c5#
- 1...Ba6
- 2.S4c5#
- 2.S6c5#
- 1...Bc6
- 2.S4c5#
- 2.S6c5#
- 1...Bd7
- 2.Sc5#
- 1...Be8
- 2.S4c5#
- 2.S6c5#
- 2.Bxe8#
- 1...d3
- 2.Sc3#
- 1...a2!
- 1...b2
- 1.Bd6?
- 1...Bf1
- 2.S4c5#
- 2.S6c5#
- 2.Bxb3#
- 1...Be2
- 2.S4c5#
- 2.S6c5#
- 2.Bxb3#
- 1...Bd3
- 2.Sc5#
- 2.Bxb3#
- 1...Bc4
- 2.S4c5#
- 2.S6c5#
- 1...Ba6
- 2.S4c5#
- 2.S6c5#
- 2.Bxb3#
- 1...Bc6
- 2.S4c5#
- 2.S6c5#
- 2.Bxb3#
- 1...Bd7
- 2.Sc5#
- 2.Bxb3#
- 1...Be8
- 2.S4c5#
- 2.S6c5#
- 2.Bxb3#
- 1...d3
- 2.Sc3#
- 1...a2!
- 1...Bf1
- 1.Be7?
- 1...Bf1
- 2.S4c5#
- 2.S6c5#
- 2.Bxb3#
- 1...Be2
- 2.S4c5#
- 2.S6c5#
- 2.Bxb3#
- 1...Bd3
- 2.Sc5#
- 2.Bxb3#
- 1...Bc4
- 2.S4c5#
- 2.S6c5#
- 1...Ba6
- 2.S4c5#
- 2.S6c5#
- 2.Bxb3#
- 1...Bc6
- 2.S4c5#
- 2.S6c5#
- 2.Bxb3#
- 1...Bd7
- 2.Sc5#
- 2.Bxb3#
- 1...Be8
- 2.S4c5#
- 2.S6c5#
- 2.Bxb3#
- 1...d3
- 2.Sc3#
- 1...a2!
- 1...Bf1
- 1.Rb6?
- 1...Bf1
- 2.S4c5#
- 2.S6c5#
- 2.Bxb3#
- 1...Be2
- 2.S4c5#
- 2.S6c5#
- 2.Bxb3#
- 1...Bd3
- 2.Sc5#
- 2.Bxb3#
- 1...Bc4
- 2.S4c5#
- 2.S6c5#
- 1...Ba6
- 2.S4c5#
- 2.S6c5#
- 2.Bxb3#
- 1...Bc6
- 2.S4c5#
- 2.S6c5#
- 2.Bxb3#
- 1...Bd7
- 2.Sc5#
- 2.Bxb3#
- 1...Be8
- 2.S4c5#
- 2.S6c5#
- 2.Bxb3#
- 1...d3
- 2.Sc3#
- 1...a2!
- 1...Bf1
- 1.Rb7?
- 1...Bf1
- 2.S4c5#
- 2.S6c5#
- 2.Bxb3#
- 1...Be2
- 2.S4c5#
- 2.S6c5#
- 2.Bxb3#
- 1...Bd3
- 2.Sc5#
- 2.Bxb3#
- 1...Bc4
- 2.S4c5#
- 2.S6c5#
- 1...Ba6
- 2.S4c5#
- 2.S6c5#
- 2.Bxb3#
- 1...Bc6
- 2.S4c5#
- 2.S6c5#
- 2.Bxb3#
- 1...Bd7
- 2.Sc5#
- 2.Bxb3#
- 1...Be8
- 2.S4c5#
- 2.S6c5#
- 2.Bxb3#
- 1...d3
- 2.Sc3#
- 1...a2!
- 1...Bf1
- 1.Kf4?
- Keys
- 1.Be2!
- threat
- 2.Bxb5#
- 1...Bxe2
- 2.S4c5#
- 2.S6c5#
- 1...b2
- 2.Bd1#
- 1...Bd3
- 2.Sc5#
- 1...Bc4
- 2.S4c5#
- 2.S6c5#
- 1...Ba6
- 2.S4c5#
- 2.S6c5#
- 1...Bc6
- 2.S4c5#
- 2.S6c5#
- 1...Bd7
- 2.Sc5#
- 1...Be8
- 2.S4c5#
- 2.S6c5#
- 1...d3
- 2.Sc3#
- threat
- 1.Be2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- P(d);N_GUARD::S(B)
- Tries
- Try
- K(C);P-FLIGHT
- Vars
- P(d);N_GUARD::S(B)
- Refutation
- P(a);
- Try
- K(C);P-FLIGHT
- Vars
- P(d);N_GUARD::S(B)
- Refutation
- P(a);
- Try
- K(C);P-FLIGHT
- Vars
- P(d);N_GUARD::S(B)
- Refutation
- P(a);
- Try
- K(C);P-FLIGHT
- Vars
- P(d);N_GUARD::S(B)
- Refutation
- P(a);
- Try
- S(B);
- Threat
- B(A),XP(b)
- Vars
- B(f);::S(D)
- Refutation
- B(f);CHECK
- Try
- S(D);XP(d)
- Threat
- DUALS(2)
- Vars
- B(f);P_PINS(B)::B(A),XP(b)
- Refutation
- B(f);CHECK
- Try
- B(A);N_PINP(b)
- Vars
- P(b);OGATEB::B(A)
- B(f);P_PINS(B)::S(D)
- B(f);P_PINS(D)::S(B)
- P(d);N_GUARD::S(B)
- Refutation
- P(a);
- Try
- B(A);N_PINP(b)
- Vars
- P(b);OGATEB::B(A)
- B(f);P_PINS(B)::S(D)
- B(f);P_PINS(D)::S(B)
- P(d);N_GUARD::S(B)
- Refutation
- P(a);
- Try
- B(A);N_PINP(b)
- Vars
- P(b);OGATEB::B(A)
- B(f);P_PINS(B)::S(D)
- B(f);P_PINS(D)::S(B)
- P(d);N_GUARD::S(B)
- Refutation
- P(a);
- Try
- B(F);
- Vars
- P(d);N_GUARD::S(B)
- Refutation
- P(a);
- Try
- B(F);
- Vars
- P(d);N_GUARD::S(B)
- Refutation
- P(a);
- Try
- R(E);
- Vars
- P(d);N_GUARD::S(B)
- Refutation
- P(a);
- Try
- R(E);
- Vars
- P(d);N_GUARD::S(B)
- Refutation
- P(a);
- Try
- Actual
- B(A);N_PINP(b)
- Threat
- B(A),XB(f)
- Vars
- P(b);OGATEB::B(A)
- B(f);P_PINS(B)::S(D)
- B(f);P_PINS(D)::S(B)
- P(d);N_GUARD::S(B)
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).