MESON Chess Problem Database
Problem Display
PID: 71332 (2Q2N2/5qB1/Bp1P1N2/4RP2/1Ppk1K2/2p5/4P3/Rb6 w - - 0 1)
Miro, Francois
La Cle, 1971
#2
12 + 6
SOLUTION
- SOUND
- Sets
- 1...Qd5
- 2.Rxd5#
- 1...Qh5
- 2.Se6#
- 2.Rd5#
- 2.Qxc4#
- 1...Qe6
- 2.Sxe6#
- 1...Qg6
- 2.Se6#
- 2.Rd5#
- 2.Qxc4#
- 1...Qe8
- 2.Rd5#
- 2.Qxc4#
- 1...Qxf6
- 2.Qxc4#
- 1...Qa7
- 2.Se6#
- 2.Rd5#
- 2.Qxc4#
- 1...Qb7
- 2.Se6#
- 2.Qxc4#
- 1...Qc7
- 2.Se6#
- 2.Rd5#
- 1...Qd7
- 2.Rd5#
- 2.Qxc4#
- 1...Qe7
- 2.Rd5#
- 2.Qxc4#
- 1...Qxg7
- 2.Se6#
- 2.Rd5#
- 2.Qxc4#
- 1...Qxf8
- 2.Rd5#
- 2.Qxc4#
- 1...Ba2
- 2.Rd1#
- 2.Re4#
- 1...Bd3
- 2.e3#
- 1...Be4
- 2.Rxe4#
- 1...b5
- 2.Qc5#
- 1...Qd5
- Tries
- 1.Rxb1?
- threat
- 2.Rd1#
- 2.Re4#
- 1...Qxf6
- 2.Rd1#
- 2.Qxc4#
- 1...Qd5
- 2.Rd1#
- 2.Rxd5#
- 1...Qe6
- 2.Sxe6#
- 2.Rd1#
- 1...Qe8
- 2.Rd1#
- 2.Rd5#
- 2.Qxc4#
- 1...Qb7
- 2.Se6#
- 2.Rd1#
- 2.Qxc4#
- 1...Qe7
- 2.Rd1#
- 2.Rd5#
- 2.Qxc4#
- 1...c2!
- threat
- 1.Re6?
- threat
- 2.Qxc4#
- 1...Qxe6
- 2.Sxe6#
- 1...Ba2
- 2.Rd1#
- 2.Re4#
- 1...Bd3
- 2.e3#
- 1...b5
- 2.Qc5#
- 1...Qc7!
- threat
- 1.Qe6?
- threat
- 2.Rd5#
- 1...Qxe6
- 2.Sxe6#
- 1...Qb7
- 2.Qxc4#
- 1...Be4
- 2.Rxe4#
- 1...c2!
- threat
- 1.Qb7?
- threat
- 2.Qxb6#
- 1...Qxb7
- 2.Se6#
- 1...Qd5
- 2.Rxd5#
- 2.Qxd5#
- 1...Qc7
- 2.Se6#
- 2.Rd5#
- 2.Qd5#
- 1...b5
- 2.Qb6#
- 1...c2!
- threat
- 1.Qc6?
- threat
- 2.Qxb6#
- 1...Qd5
- 2.Rxd5#
- 2.Qxd5#
- 1...Qa7
- 2.Se6#
- 2.Rd5#
- 2.Qd5#
- 2.Qxc4#
- 1...Qb7
- 2.Se6#
- 2.Rd5#
- 2.Qxc4#
- 1...Qc7
- 2.Se6#
- 2.Rd5#
- 2.Qd5#
- 1...b5
- 2.Qc5#
- 2.Qb6#
- 1...c2!
- threat
- 1.Qc7?
- threat
- 2.Qxb6#
- 1...Qxc7
- 2.Se6#
- 2.Rd5#
- 1...Qd5
- 2.Rxd5#
- 1...b5
- 2.Qb6#
- 2.Qc5#
- 1...c2!
- threat
- 1.Qb8?
- threat
- 2.Qxb6#
- 1...Qd5
- 2.Rxd5#
- 1...Qa7
- 2.Se6#
- 2.Rd5#
- 1...Qb7
- 2.Se6#
- 1...Qc7
- 2.Se6#
- 2.Rd5#
- 1...b5
- 2.Qb6#
- 1...c2!
- threat
- 1.Qd8?
- threat
- 2.Qxb6#
- 1...Qd5
- 2.Rxd5#
- 1...Qa7
- 2.Se6#
- 2.Rd5#
- 1...Qb7
- 2.Se6#
- 1...Qc7
- 2.Se6#
- 2.Rd5#
- 2.dxc7#
- 1...b5
- 2.Qb6#
- 1...c2!
- threat
- 1.Rxb1?
- Keys
- 1.Sd5!
- threat
- 2.Qxc4#
- 1...Qxf5+
- 2.Rxf5#
- 1...Qxd5
- 2.Re4#
- 1...Qc7
- 2.Se6#
- 1...Ba2
- 2.Rd1#
- 1...Bd3
- 2.e3#
- 1...b5
- 2.Qc5#
- threat
- 1.Sd5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 3
- REMOVED MATES = 3
- Sets
- Q(f);N_GUARD::R1(E),XQ(f)
- Q(f);N_GUARD::S(L),XQ(f)
- Q(f);N_GUARD,P_PINP(F),XS(I)::QAR1(K),XP(c)
- B(a);SBLOCK::P(B)
- B(a);N_GUARD::R1(E),XB(a)
- P(e);N_GUARD::QAB1(K)
- Tries
- Try
- R(A);XB(a)
- Threat
- DUALS(2)
- Refutation
- P(b);
- Try
- R(E);
- Threat
- QAR1(K),XP(c)
- Vars
- Q(f);XR(E)::S(L),XQ(f)
- B(a);SBLOCK::P(B)
- P(e);N_GUARD::QAB1(K)
- Refutation
- Q(f);P_PINP(H)
- Try
- Q(K);
- Threat
- R1(E)
- Vars
- Q(f);XQ(K)::S(L),XQ(f)
- Q(f);N_GUARD::QAR1(K),XP(c)
- B(a);N_GUARD::R1(E),XB(a)
- Refutation
- P(b);
- Try
- Q(K);
- Threat
- QAB(K),XP(e)
- Vars
- Q(f);N_GUARD,XQ(K)::S(L)
- P(e);::QAB(K)
- Refutation
- P(b);
- Try
- Q(K);
- Threat
- QAB(K),XP(e)
- Refutation
- P(b);
- Try
- Q(K);
- Threat
- QAB(K),XP(e)
- Vars
- Q(f);N_GUARD::R1(E),XQ(f)
- Refutation
- P(b);
- Try
- Q(K);
- Threat
- QAB(K),XP(e)
- Vars
- Q(f);N_GUARD::R1(E),XQ(f)
- Q(f);N_GUARD::S(L)
- P(e);::QAB(K)
- Refutation
- P(b);
- Try
- Q(K);
- Threat
- QAB(K),XP(e)
- Vars
- Q(f);N_GUARD::R1(E),XQ(f)
- Q(f);N_GUARD::S(L)
- P(e);::QAB(K)
- Refutation
- P(b);
- Try
- Actual
- S(I);P_SPINP(F)
- Threat
- QAR1(K),XP(c)
- Vars
- Q(f);CHECK,OGATE,XP(F)::B(J)+R(E),XQ(f)
- Q(f);N_PINP(F),SBLOCK,XS(I)::B(J)+R(E),DCHECK
- Q(f);N_GUARD,N_PINP(F)::S(L)
- B(a);OGATE::R(A)
- B(a);SBLOCK::P(B)
- P(e);N_GUARD::QAB1(K)
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).