MESON Chess Problem Database
Problem Display
PID: 196724 (2B5/2B1pQP1/3rNp2/5kp1/8/5P2/4P2K/8 w - - 0 1)
Lindgren, Frithiof
Los Angeles Examiner, 1919
#2
8 + 5
| 6490 | yacpdb | 2019 |
SOLUTION
- SOUND
- Sets
- 1...Rd1
- 2.Sd4#
- 2.e4#
- 1...Rd2
- 2.Sd4#
- 1...Rd3
- 2.Sd4#
- 2.e4#
- 1...Rd4
- 2.Sxd4#
- 1...Rd5
- 2.Sd4#
- 2.e4#
- 1...Ra6
- 2.Sd4#
- 2.e4#
- 1...Rb6
- 2.Sd4#
- 2.e4#
- 1...Rc6
- 2.Sd4#
- 2.e4#
- 1...Rxe6
- 2.Bxe6#
- 2.e4#
- 1...Rd7
- 2.Sd4#
- 2.e4#
- 1...Rd8
- 2.Sd4#
- 2.e4#
- 1...g4
- 2.Qh5#
- 1...Rd1
- Tries
- 1.Kg2?
- 1...Rxe6
- 2.Bxe6#
- 2.e4#
- 1...Rd1
- 2.Sd4#
- 2.e4#
- 1...Rd2
- 2.Sd4#
- 1...Rd3
- 2.Sd4#
- 2.e4#
- 1...Rd4
- 2.Sxd4#
- 1...Rd5
- 2.Sd4#
- 2.e4#
- 1...Ra6
- 2.Sd4#
- 2.e4#
- 1...Rb6
- 2.Sd4#
- 2.e4#
- 1...Rc6
- 2.Sd4#
- 2.e4#
- 1...Rd7
- 2.Sd4#
- 2.e4#
- 1...Rd8
- 2.Sd4#
- 2.e4#
- 1...g4
- 2.Qh5#
- 1...Ke5!
- 1...Rxe6
- 1.Kg3?
- 1...Rxe6
- 2.Bxe6#
- 2.e4#
- 1...Rd1
- 2.Sd4#
- 2.e4#
- 1...Rd2
- 2.Sd4#
- 2.e4#
- 1...Rd3
- 2.Sd4#
- 2.e4#
- 1...Rd4
- 2.Sxd4#
- 1...Rd5
- 2.Sd4#
- 2.e4#
- 1...Ra6
- 2.Sd4#
- 2.e4#
- 1...Rb6
- 2.Sd4#
- 2.e4#
- 1...Rc6
- 2.Sd4#
- 2.e4#
- 1...Rd7
- 2.Sd4#
- 2.e4#
- 1...Rd8
- 2.Sd4#
- 2.e4#
- 1...g4
- 2.Qh5#
- 1...Ke5!
- 1...Rxe6
- 1.Bxd6?
- threat
- 2.Sd4#
- 2.e4#
- 1...g4
- 2.Qh5#
- 2.e4#
- 1...exd6!
- threat
- 1.Bb8?
- 1...Rxe6
- 2.Bxe6#
- 2.e4#
- 1...Rd1
- 2.Sd4#
- 2.e4#
- 1...Rd2
- 2.Sd4#
- 1...Rd3
- 2.Sd4#
- 2.e4#
- 1...Rd4
- 2.Sxd4#
- 1...Rd5
- 2.Sd4#
- 2.e4#
- 1...Ra6
- 2.Sd4#
- 2.e4#
- 1...Rb6
- 2.Sd4#
- 2.e4#
- 1...Rc6
- 2.Sd4#
- 2.e4#
- 1...Rd7
- 2.Sd4#
- 2.e4#
- 1...Rd8
- 2.Sd4#
- 2.e4#
- 1...g4
- 2.Qh5#
- 1...Ke5!
- 1...Rxe6
- 1.Bd7?
- 1...Rxe6
- 2.Bxe6#
- 2.e4#
- 1...Rxd7
- 2.e4#
- 1...Rd1
- 2.Sd4#
- 2.e4#
- 1...Rd2
- 2.Sd4#
- 1...Rd3
- 2.Sd4#
- 2.e4#
- 1...Rd4
- 2.Sxd4#
- 1...Rd5
- 2.Sd4#
- 2.e4#
- 1...Ra6
- 2.Sd4#
- 2.e4#
- 1...Rb6
- 2.Sd4#
- 2.e4#
- 1...Rc6
- 2.Sd4#
- 2.e4#
- 1...g4
- 2.Qh5#
- 1...Ke5!
- 1...Rxe6
- 1.Qh5?
- 1...Rxe6
- 2.Qh7#
- 2.e4#
- 1...Rd1
- 2.Sd4#
- 2.Qh7#
- 2.e4#
- 1...Rd2
- 2.Sd4#
- 2.Qh7#
- 1...Rd3
- 2.Sd4#
- 2.Qh7#
- 2.e4#
- 1...Rd4
- 2.Sxd4#
- 2.Qh7#
- 1...Rd5
- 2.Sd4#
- 2.Qh7#
- 2.e4#
- 1...Ra6
- 2.Sd4#
- 2.Qh7#
- 2.e4#
- 1...Rb6
- 2.Sd4#
- 2.Qh7#
- 2.e4#
- 1...Rc6
- 2.Sd4#
- 2.Qh7#
- 2.e4#
- 1...Rd7
- 2.Sd4#
- 1...Rd8
- 2.Sd4#
- 2.Qh7#
- 2.e4#
- 1...Ke5!
- 1...Rxe6
- 1.Qg6+?
- 1...Ke5
- 2.Qe4#
- 1...Kxg6!
- 1...Ke5
- 1.g8Q?
- threat
- 2.Qxg5#
- 1...Rxe6
- 2.Bxe6#
- 2.Qxe6#
- 2.Qfg6#
- 2.Qgh7#
- 2.Qfh7#
- 2.Qgg6#
- 2.e4#
- 1...g4
- 2.Qh5#
- 2.Qg5#
- 1...Ke5!
- threat
- 1.g8S?
- 1...Rxe6
- 2.Sh6#
- 2.Sxe7#
- 2.Bxe6#
- 2.Qh7#
- 2.e4#
- 1...Rd1
- 2.Sd4#
- 2.Sg7#
- 2.Sh6#
- 2.Sxe7#
- 2.Qh7#
- 2.e4#
- 1...Rd2
- 2.Sd4#
- 2.Sg7#
- 2.Sh6#
- 2.Sxe7#
- 2.Qh7#
- 1...Rd3
- 2.Sd4#
- 2.Sg7#
- 2.Sh6#
- 2.Sxe7#
- 2.Qh7#
- 2.e4#
- 1...Rd4
- 2.Sxd4#
- 2.Sg7#
- 2.Sh6#
- 2.Sxe7#
- 2.Qh7#
- 1...Rd5
- 2.Sd4#
- 2.Sg7#
- 2.Sh6#
- 2.Sxe7#
- 2.Qh7#
- 2.e4#
- 1...Ra6
- 2.Sd4#
- 2.Sg7#
- 2.Sh6#
- 2.Sxe7#
- 2.Qh7#
- 2.e4#
- 1...Rb6
- 2.Sd4#
- 2.Sg7#
- 2.Sh6#
- 2.Sxe7#
- 2.Qh7#
- 2.e4#
- 1...Rc6
- 2.Sd4#
- 2.Sg7#
- 2.Sh6#
- 2.Sxe7#
- 2.Qh7#
- 2.e4#
- 1...Rd7
- 2.Sd4#
- 2.Sg7#
- 2.Sh6#
- 2.e4#
- 1...Rd8
- 2.Sd4#
- 2.Sg7#
- 2.Sh6#
- 2.Sxe7#
- 2.Qh7#
- 2.e4#
- 1...g4
- 2.Qh5#
- 1...Ke5!
- 1...Rxe6
- 1.g8B?
- 1...Rxe6
- 2.Bxe6#
- 2.Bh7#
- 2.Qh7#
- 2.e4#
- 1...Rd1
- 2.Sd4#
- 2.Sg7#
- 2.Bh7#
- 2.Qh7#
- 2.e4#
- 1...Rd2
- 2.Sd4#
- 2.Sg7#
- 2.Bh7#
- 2.Qh7#
- 1...Rd3
- 2.Sd4#
- 2.Sg7#
- 2.Bh7#
- 2.Qh7#
- 2.e4#
- 1...Rd4
- 2.Sxd4#
- 2.Sg7#
- 2.Bh7#
- 2.Qh7#
- 1...Rd5
- 2.Sd4#
- 2.Sg7#
- 2.Bh7#
- 2.Qh7#
- 2.e4#
- 1...Ra6
- 2.Sd4#
- 2.Sg7#
- 2.Bh7#
- 2.Qh7#
- 2.e4#
- 1...Rb6
- 2.Sd4#
- 2.Sg7#
- 2.Bh7#
- 2.Qh7#
- 2.e4#
- 1...Rc6
- 2.Sd4#
- 2.Sg7#
- 2.Bh7#
- 2.Qh7#
- 2.e4#
- 1...Rd7
- 2.Sd4#
- 2.Sg7#
- 2.Bh7#
- 2.Qh7#
- 2.e4#
- 1...Rd8
- 2.Sd4#
- 2.Sg7#
- 2.Bh7#
- 2.Qh7#
- 2.e4#
- 1...g4
- 2.Qh5#
- 1...Ke5!
- 1...Rxe6
- 1.g8R?
- threat
- 2.Rxg5#
- 1...Rxe6
- 2.Bxe6#
- 2.Qxe6#
- 2.Qg6#
- 2.Qh7#
- 2.e4#
- 1...g4
- 2.Rg5#
- 2.Qh5#
- 1...Ke5!
- threat
- 1.Kg2?
- Keys
- 1.Qe8!
- 1...Ke5
- 2.Qb5#
- 1...Rxe6
- 2.e4#
- 1...Rd1
- 2.Sd4#
- 2.e4#
- 1...Rd2
- 2.Sd4#
- 1...Rd3
- 2.Sd4#
- 2.e4#
- 1...Rd4
- 2.Sxd4#
- 1...Rd5
- 2.Sd4#
- 2.e4#
- 1...Ra6
- 2.Sd4#
- 2.e4#
- 1...Rb6
- 2.Sd4#
- 2.e4#
- 1...Rc6
- 2.Sd4#
- 2.e4#
- 1...Rd7
- 2.Sd4#
- 1...Rd8
- 2.Sd4#
- 2.e4#
- 1...g4
- 2.Qh5#
- 1...Ke5
- 1.Qe8!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- R(c);P_PINP(A)::B(H)+S(D),DCHECK
- R(c);::B(H)+S(D),DCHECK,XR(c)
- P(b);OGATEB::QAR2(F)
- Tries
- Try
- K(B);P-FLIGHT
- Vars
- R(c);P_PINP(A)::B(H)+S(D),DCHECK
- R(c);::B(H)+S(D),DCHECK,XR(c)
- P(b);OGATEB::QAR2(F)
- Refutation
- K(a);N_SPINP(d),P-FLIGHT,P_SPINR(c)
- Try
- K(B);S_FLIGHT
- Vars
- R(c);::B(H)+S(D),DCHECK,XR(c)
- P(b);OGATEB::QAR2(F)
- Refutation
- K(a);N_SPINP(d),P-FLIGHT,P_SPINR(c)
- Try
- B(E);XR(c)
- Threat
- DUALS(2)
- Refutation
- P(e);XB(E)
- Try
- B(E);
- Vars
- R(c);P_PINP(A)::B(H)+S(D),DCHECK
- R(c);::B(H)+S(D),DCHECK,XR(c)
- P(b);OGATEB::QAR2(F)
- Refutation
- K(a);N_SPINP(d),P-FLIGHT,P_SPINR(c)
- Try
- B(H);
- Vars
- R(c);XB(H)::P(A)
- R(c);P_PINP(A)::B(H)+S(D),DCHECK
- R(c);::B(H)+S(D),DCHECK,XR(c)
- P(b);OGATEB::QAR2(F)
- Refutation
- K(a);N_SPINP(d),P-FLIGHT,P_SPINR(c)
- Try
- Q(F);N_PINP(d),P_PINP(b)
- Vars
- R(c);::S(D)
- Refutation
- K(a);P-FLIGHT,P_SPINR(c)
- Try
- Q(F);CHECK,N_PINP(d)
- Vars
- K(a);OGATE,P-FLIGHT,P_SPINR(c)::QAR1(F)
- Refutation
- K(a);S_FLIGHT,XQ(F)
- Try
- P(G);
- Threat
- QAR1(G),XP(b)
- Refutation
- K(a);N_SPINP(d),P-FLIGHT,P_SPINR(c)
- Try
- P(G);
- Vars
- P(b);OGATEB::QAR2(F)
- Refutation
- K(a);N_SPINP(d),P-FLIGHT,P_SPINR(c)
- Try
- P(G);
- Vars
- P(b);OGATEB::QAR2(F)
- Refutation
- K(a);N_SPINP(d),P-FLIGHT,P_SPINR(c)
- Try
- P(G);
- Threat
- R1(G),XP(b)
- Refutation
- K(a);N_SPINP(d),P-FLIGHT,P_SPINR(c)
- Try
- Actual
- Q(F);N_PINP(d)
- Vars
- K(a);P-FLIGHT,P_SPINR(c)::QAR(F)
- R(c);P_SPINR(c),XS(D)::P(A)
- R(c);P_PINP(A)::B(H)+S(D),DCHECK
- R(c);::B(H)+S(D),DCHECK,XR(c)
- R(c);::S(D)
- P(b);OGATEB::QAR2(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).