MESON Chess Problem Database
Problem Display
PID: 274345 (3Q4/3bp1B1/1np5/1p4KN/r3kpP1/bN5R/5Pn1/3R4 w - - 0 1)
Lindgren, Frithiof
Schackvarlden, 1934
#2
9 + 10
| 15601 | Albrecht-Leiss-Degener Collection | 2024 |
SOLUTION
- SOUND
- Sets
- 1...Rb4
- 2.Sc5#
- 1...Rd4
- 2.Rxd4#
- 1...Ra5
- 2.Rd4#
- 1...Ra6
- 2.Rd4#
- 1...Ra7
- 2.Rd4#
- 1...Ra8
- 2.Rd4#
- 1...Bc1
- 2.Sc5#
- 1...Bb2
- 2.Sc5#
- 1...Bb4
- 2.Rd4#
- 1...Bc5
- 2.Sxc5#
- 1...Bxg4
- 2.Sd2#
- 2.Qd3#
- 1...Bf5
- 2.Sd2#
- 2.Qd3#
- 1...Be6
- 2.Sd2#
- 2.Qd3#
- 1...Bc8
- 2.Sd2#
- 2.Qd3#
- 1...Be8
- 2.Sd2#
- 2.Qd3#
- 1...Se3
- 2.f3#
- 1...Sc4
- 2.Rd4#
- 1...Sd5
- 2.Sd2#
- 1...f3
- 2.Sg3#
- 1...b4
- 2.Sc5#
- 2.Rd4#
- 1...e5
- 2.Sf6#
- 1...Rb4
- Tries
- 1.Sxf4?
- threat
- 2.Sd2#
- 1...Sxf4
- 2.Re3#
- 1...Rd4
- 2.Rxd4#
- 1...Bc1
- 2.Sc5#
- 1...Bb4
- 2.Rd4#
- 1...Sc4
- 2.Rd4#
- 1...e5!
- threat
- 1.Qc7?
- threat
- 2.Qe5#
- 1...Bb2
- 2.Sc5#
- 1...Sc4
- 2.Rd4#
- 1...e5
- 2.Sf6#
- 2.Qxe5#
- 1...Bd6!
- threat
- 1.Qxe7+?
- 1...Be6
- 2.Qxe6#
- 1...Bxe7+!
- 1...Be6
- 1.Qxd7?
- threat
- 2.Sd2#
- 2.Qf5#
- 2.Qe6#
- 2.Qd3#
- 1...Rd4
- 2.Rxd4#
- 2.Qf5#
- 2.Qe6#
- 2.Qxd4#
- 1...Bc1
- 2.Sc5#
- 2.Qf5#
- 2.Qe6#
- 2.Qd3#
- 2.Qxe7#
- 1...Bb2
- 2.Sd2#
- 2.Sc5#
- 2.Qf5#
- 2.Qd3#
- 1...Bb4
- 2.Rd4#
- 2.Qf5#
- 2.Qe6#
- 2.Qd3#
- 2.Qd4#
- 1...Bd6
- 2.Qf5#
- 1...Se1
- 2.Sd2#
- 2.Rxe1#
- 2.Qf5#
- 2.Qe6#
- 1...Se3
- 2.Sd2#
- 2.Qe6#
- 2.Qd3#
- 2.f3#
- 1...Sh4
- 2.Sd2#
- 2.Re1#
- 2.Qe6#
- 2.Qd3#
- 1...Sc4
- 2.Rd4#
- 2.Qf5#
- 2.Qxc6#
- 2.Qd3#
- 2.Qd4#
- 1...Sd5
- 2.Sd2#
- 2.Qf5#
- 2.Qe6#
- 1...e5
- 2.Sd2#
- 2.Sf6#
- 2.Qf5#
- 2.Qd3#
- 1...e6
- 2.Sd2#
- 2.Qxe6#
- 2.Qd3#
- 1...Sxd7!
- threat
- 1.Qb8?
- threat
- 2.Qe5#
- 1...Bb2
- 2.Sc5#
- 1...Sc4
- 2.Rd4#
- 1...e5
- 2.Sf6#
- 2.Qxe5#
- 1...Bd6!
- threat
- 1.Sxf4?
- Keys
- 1.Qg8!
- threat
- 2.Sd2#
- 1...Rd4
- 2.Rxd4#
- 1...Bc1
- 2.Sc5#
- 1...Bb4
- 2.Rd4#
- 1...Be6
- 2.Qxe6#
- 1...Se3
- 2.f3#
- 1...Sc4
- 2.Rd4#
- 1...f3
- 2.Sg3#
- 1...e5
- 2.Sf6#
- 1...e6
- 2.Qh7#
- threat
- 1.Qg8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 8
- Sets
- R(c);S_CUTB(b)::S(C)
- R(c);N_GUARD::R1(A),XR(c)
- R(c);N_GUARD::R1(A)
- B(b);N_GUARD::S(C)
- B(b);S_CUTR(c)::R1(A)
- B(b);N_GUARD::S(C),XB(b)
- S(a);SBLOCK::P(B)
- S(g);S_CUTR(c)::R1(A)
- S(g);SBLOCK::S(C)
- P(e);N_GUARD,SBLOCK::S(G)
- P(j);N_GUARD,SBLOCK::S(G)
- Tries
- Try
- S(G);XP(e)
- Threat
- S(C)
- Vars
- S(a);N_GUARD,XS(G)::R1(D)
- R(c);N_GUARD::R1(A),XR(c)
- B(b);N_GUARD,P_PINS(G)::S(C)
- B(b);S_CUTR(c)::R1(A)
- S(g);S_CUTR(c)::R1(A)
- Refutation
- P(j);
- Try
- Q(I);
- Threat
- QAR1(I)
- Vars
- B(b);N_GUARD::S(C)
- S(g);S_CUTR(c)::R1(A)
- Refutation
- B(b);
- Try
- Q(I);CHECK,XP(j)
- Vars
- B(i);N_GUARD,P_SPINB(i)::QAR2(I),XB(i)
- Refutation
- B(b);CHECK,XQ(I)
- Try
- Q(I);XB(i)
- Threat
- DUALS(4)
- Vars
- B(b);::QAB1(I)
- Refutation
- S(g);XQ(I)
- Try
- Q(I);
- Threat
- QAR1(I)
- Vars
- B(b);N_GUARD::S(C)
- S(g);S_CUTR(c)::R1(A)
- Refutation
- B(b);
- Try
- Actual
- Q(I);
- Threat
- S(C)
- Vars
- R(c);N_GUARD::R1(A),XR(c)
- B(b);N_GUARD::S(C)
- B(b);S_CUTR(c)::R1(A)
- B(i);N_GUARD::QAR2(I),XB(i)
- S(a);SBLOCK::P(B)
- S(g);S_CUTR(c)::R1(A)
- P(e);N_GUARD,SBLOCK::S(G)
- P(j);N_GUARD,SBLOCK::S(G)
- P(j);S_CUTB(i)::QAB(I)
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).