MESON Chess Problem Database
Problem Display
PID: 47569 (2RN2b1/1B1p4/1p1k1P1b/6nr/3BpR2/6r1/Q1pN1pq1/2K2n2 w - - 0 1)
Levrier, Jean
Themes-64, 1956
#2
9 + 13
SOLUTION
- SOUND
- Sets
- 1...Ra3
- 2.Qxa3#
- 1...Rg4
- 2.Qa3#
- 1...Bb3
- 2.Qa3#
- 1...Bc4
- 2.Sxc4#
- 1...Bd5
- 2.Qxd5#
- 1...Bh7
- 2.Sc4#
- 2.Qd5#
- 1...Se3
- 2.Qa3#
- 1...Sf3
- 2.Sxe4#
- 1...Se6
- 2.Sc4#
- 1...Sf7
- 2.Sc4#
- 1...e3
- 2.Qa3#
- 1...b5
- 2.Qa6#
- 1...Ra3
- Tries
- 1.Qf7?
- threat
- 2.Sc4#
- 2.Qe7#
- 1...Sxd2
- 2.Qe7#
- 1...Sxf7
- 2.Sc4#
- 1...Rc3
- 2.Qe7#
- 1...Bf8
- 2.Sc4#
- 2.Qxf8#
- 1...Se3
- 2.Qe7#
- 1...b5
- 2.Qe7#
- 1...Bxf7!
- threat
- 1.Qxg8?
- threat
- 2.Sc4#
- 2.Qd5#
- 1...Sxd2
- 2.Qd5#
- 1...Rc3
- 2.Qd5#
- 1...Sf3
- 2.Sc4#
- 2.Sxe4#
- 1...Sh3
- 2.Sc4#
- 1...Se6
- 2.Sc4#
- 2.Sf7#
- 1...Sf7
- 2.Sc4#
- 1...Sh7
- 2.Sc4#
- 1...e3
- 2.Sc4#
- 1...b5
- 2.Qd5#
- 1...Se3!
- threat
- 1.Qb2?
- threat
- 2.Be5#
- 2.Qb4#
- 2.Qxb6#
- 1...Rb3
- 2.Be5#
- 1...Bb3
- 2.Be5#
- 2.Qa3#
- 1...Bd5
- 2.Be5#
- 2.Qb4#
- 1...Sf3
- 2.Sxe4#
- 2.Qxb6#
- 1...Sh3
- 2.Qxb6#
- 1...Se6
- 2.Sc4#
- 2.Qxb6#
- 1...Sf7
- 2.Sc4#
- 2.Qxb6#
- 1...Sh7
- 2.Qxb6#
- 1...e3
- 2.Be5#
- 2.Qa3#
- 2.Qb4#
- 1...b5
- 2.Bc5#
- 2.Be5#
- 2.Qb4#
- 1...Rc3!
- threat
- 1.Qxc2?
- threat
- 2.Qc7#
- 1...Bc4
- 2.Sxc4#
- 1...Se6
- 2.Sc4#
- 1...Rc3!
- threat
- 1.Qa5?
- threat
- 2.Be5#
- 2.Qb4#
- 2.Qxb6#
- 2.Qe5#
- 1...Rc3
- 2.Be5#
- 2.Qe5#
- 1...Rb3
- 2.Be5#
- 2.Qe5#
- 1...Bd5
- 2.Qb4#
- 2.Qxd5#
- 1...Sf3
- 2.Sxe4#
- 2.Qxb6#
- 1...Sh3
- 2.Qxb6#
- 1...Se6
- 2.Sc4#
- 2.Qxb6#
- 1...Sf7
- 2.Sc4#
- 2.Qxb6#
- 1...Sh7
- 2.Qxb6#
- 1...e3
- 2.Be5#
- 2.Qb4#
- 2.Qa3#
- 2.Qe5#
- 1...b5
- 2.Qb4#
- 2.Qb6#
- 2.Qc7#
- 2.Qa6#
- 1...bxa5!
- threat
- 1.Qa7?
- threat
- 2.Qxb6#
- 2.Qb8#
- 1...Rb3
- 2.Qb8#
- 1...Bd5
- 2.Qb8#
- 1...Se6
- 2.Sc4#
- 2.Qxb6#
- 1...e3
- 2.Qb8#
- 2.Qa3#
- 1...b5
- 2.Qc5#
- 2.Qb6#
- 2.Qb8#
- 2.Qa6#
- 1...Rc3!
- threat
- 1.Qa8?
- threat
- 2.Qb8#
- 1...Se6
- 2.Sc4#
- 1...Rc3!
- threat
- 1.Qf7?
- Keys
- 1.Rf5!
- threat
- 2.Be5#
- 1...Sf3
- 2.Qa3#
- 1...Sf7
- 2.Qd5#
- threat
- 1.Rf5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 0
- REMOVED MATES = 9
- Sets
- R(e);N_GUARD::QAB(B),XR(e)
- R(e);N_GUARD::QAB(B)
- B(m);S_CUTR(e)::QAB(B)
- B(m);N_GUARD::S(C),XB(m)
- B(m);N_GUARD::QAR1(B),XB(m)
- S(a);S_CUTR(e)::QAB(B)
- S(g);N_GUARD,S_CUTQ(d)::S(C),XP(f)
- S(g);S_CUTB(m)::S(C)
- P(f);S_CUTR(e)::QAB(B)
- P(i);OGATEB::QAR(B)
- Tries
- Try
- Q(B);
- Threat
- DUALS(2)
- Vars
- S(a);XS(C)::QAB1(B)
- S(g);XQ(B)::S(C)
- R(e);::QAB1(B)
- S(a);::QAB1(B)
- P(i);::QAB1(B)
- Refutation
- B(m);XQ(B)
- Try
- Q(B);XB(m)
- Threat
- DUALS(2)
- Vars
- S(a);XS(C)::QAR1(B)
- R(e);::QAR1(B)
- S(g);::S(C)
- P(f);::S(C)
- P(i);::QAR1(B)
- Refutation
- S(a);
- Try
- Q(B);
- Threat
- DUALS(3)
- Vars
- R(e);::B(D)
- S(g);::QAR2(B),XP(i)
- Refutation
- R(e);
- Try
- Q(B);XP(b)
- Threat
- QAB1(B)
- Vars
- B(m);N_GUARD::S(C),XB(m)
- S(g);S_CUTB(m)::S(C)
- Refutation
- R(e);P_PINQ(B)
- Try
- Q(B);
- Threat
- DUALS(4)
- Vars
- S(g);::QAR2(B),XP(i)
- Refutation
- P(i);XQ(B)
- Try
- Q(B);
- Threat
- DUALS(2)
- Vars
- R(e);::QAB(B)
- B(m);::QAB(B)
- Refutation
- R(e);
- Try
- Q(B);
- Threat
- QAB(B)
- Vars
- S(g);S_CUTB(m)::S(C)
- Refutation
- R(e);
- Try
- Actual
- R(E);
- Threat
- B(D)
- Vars
- S(g);P_PINS(C),S_CUTR(e)::QAB(B)
- S(g);P_PINS(C),S_CUTB(m)::QAR1(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).