MESON Chess Problem Database
Problem Display
PID: 124303 (1K5b/2p5/Q7/R1pB4/pN1k2N1/2r2P2/1npn3r/Bq1R4 w - - 0 1)
Leclercq, M
Themes-64, 1959
#2
9 + 11
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Ra3
- 2.Qc4#
- 1...Rb3
- 2.Qc4#
- 1...Rd3
- 2.Qxd3#
- 1...Re3
- 2.Qc4#
- 1...Rxf3
- 2.Qc4#
- 1...Rc4
- 2.Qxc4#
- 1...Bf6
- 2.Qxf6#
- 1...Sxd1
- 2.Qd3#
- 1...Sd3
- 2.Qxd3#
- 1...Sc4
- 2.Qxc4#
- 1...Ra3
- Tries
- 1.Bf7?
- threat
- 2.Sc6#
- 1...Rxf3
- 2.Qc4#
- 1...Sxd1
- 2.Qd3#
- 1...cxb4
- 2.Rd5#
- 1...Ra3
- 2.Qc4#
- 1...Rb3
- 2.Qc4#
- 1...Rd3
- 2.Qxd3#
- 1...Re3
- 2.Qc4#
- 1...Rc4
- 2.Qxc4#
- 1...Sd3
- 2.Qxd3#
- 1...Sc4
- 2.Qxc4#
- 1...c4
- 2.Rd5#
- 1...c6
- 2.Sxc6#
- 1...Rh6!
- threat
- 1.Bg8?
- threat
- 2.Sc6#
- 1...Rxf3
- 2.Qc4#
- 1...Sxd1
- 2.Qd3#
- 1...cxb4
- 2.Rd5#
- 1...Ra3
- 2.Qc4#
- 1...Rb3
- 2.Qc4#
- 1...Rd3
- 2.Qxd3#
- 1...Re3
- 2.Qc4#
- 1...Rc4
- 2.Qxc4#
- 1...Sd3
- 2.Qxd3#
- 1...Sc4
- 2.Qxc4#
- 1...c4
- 2.Rd5#
- 1...c6
- 2.Sxc6#
- 1...Rh6!
- threat
- 1.Rxd2+?
- 1...Rd3
- 2.Rxd3#
- 2.Qxd3#
- 2.Qc4#
- 1...Sd3
- 2.Rxd3#
- 2.Qxd3#
- 2.Qc4#
- 1...Rxd2!
- 1...Rd3
- 1.Bf7?
- Keys
- 1.Be6!
- threat
- 2.Sc6#
- 1...Rxf3
- 2.Qc4#
- 1...Sxd1
- 2.Qd3#
- 1...cxb4
- 2.Rd5#
- 1...Ra3
- 2.Qc4#
- 1...Rb3
- 2.Qc4#
- 1...Rd3
- 2.Qxd3#
- 1...Re3
- 2.Qc4#
- 1...Rc4
- 2.Qxc4#
- 1...Sd3
- 2.Qxd3#
- 1...Sc4
- 2.Qxc4#
- 1...c4
- 2.Rd5#
- 1...c6
- 2.Sxc6#
- threat
- 1.Be6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 1
- Sets
- R(f);N_GUARD,N_SPINS(d),P_SPINS(b)::QAR1(H)
- R(f);N_GUARD,N_SPINS(d),P_PINS(D),P_SPINS(b)::QAR1(H)
- R(f);N_GUARD,N_SPINS(d),P_SPINS(b)::QAR1(H),XR(f)
- R(f);N_GUARD,N_SPINS(d),P_SPINS(b),XP(C)::QAR1(H)
- B(k);N_GUARD::QAB(H),XB(k)
- S(b);N_GUARD,N_SPINS(d),P_PINS(D),P_SPINR(f),XR(B)::QAR1(H)
- S(b);N_GUARD,N_SPINS(d),P_PINS(D),P_SPINR(f)::QAR1(H),XS(b)
- S(b);N_GUARD,P_PINS(D),P_SPINR(f)::QAR1(H),XS(b)
- Tries
- Try
- B(G);
- Threat
- S(D)
- Vars
- R(f);N_GUARD,N_SPINS(d),P_SPINS(b),XP(C)::QAR1(H)
- S(b);N_GUARD,N_SPINS(d),P_PINS(D),P_SPINR(f),XR(B)::QAR1(H)
- P(i);OGATE,XS(D)::R1(F)
- R(f);N_GUARD,N_SPINS(d),P_SPINS(b)::QAR1(H)
- R(f);N_GUARD,N_SPINS(d),P_PINS(D),P_SPINS(b)::QAR1(H)
- R(f);N_GUARD,N_SPINS(d),P_SPINS(b)::QAR1(H),XR(f)
- S(b);N_GUARD,N_SPINS(d),P_PINS(D),P_SPINR(f)::QAR1(H),XS(b)
- S(b);N_GUARD,P_PINS(D),P_SPINR(f)::QAR1(H),XS(b)
- P(i);OGATE::R1(F)
- P(j);::S(D),XP(j)
- Refutation
- R(e);
- Try
- B(G);
- Threat
- S(D)
- Vars
- R(f);N_GUARD,N_SPINS(d),P_SPINS(b),XP(C)::QAR1(H)
- S(b);N_GUARD,N_SPINS(d),P_PINS(D),P_SPINR(f),XR(B)::QAR1(H)
- P(i);OGATE,XS(D)::R1(F)
- R(f);N_GUARD,N_SPINS(d),P_SPINS(b)::QAR1(H)
- R(f);N_GUARD,N_SPINS(d),P_PINS(D),P_SPINS(b)::QAR1(H)
- R(f);N_GUARD,N_SPINS(d),P_SPINS(b)::QAR1(H),XR(f)
- S(b);N_GUARD,N_SPINS(d),P_PINS(D),P_SPINR(f)::QAR1(H),XS(b)
- S(b);N_GUARD,P_PINS(D),P_SPINR(f)::QAR1(H),XS(b)
- P(i);OGATE::R1(F)
- P(j);::S(D),XP(j)
- Refutation
- R(e);
- Try
- R(B);CHECK,XS(d)
- Refutation
- R(e);XR(B)
- Try
- Actual
- B(G);
- Threat
- S(D)
- Vars
- R(f);N_GUARD,N_SPINS(d),P_SPINS(b),XP(C)::QAR1(H)
- S(b);N_GUARD,N_SPINS(d),P_PINS(D),P_SPINR(f),XR(B)::QAR1(H)
- P(i);OGATE,XS(D)::R1(F)
- R(f);N_GUARD,N_SPINS(d),P_SPINS(b)::QAR1(H)
- R(f);N_GUARD,N_SPINS(d),P_PINS(D),P_SPINS(b)::QAR1(H)
- R(f);N_GUARD,N_SPINS(d),P_SPINS(b)::QAR1(H),XR(f)
- S(b);N_GUARD,N_SPINS(d),P_PINS(D),P_SPINR(f)::QAR1(H),XS(b)
- S(b);N_GUARD,P_PINS(D),P_SPINR(f)::QAR1(H),XS(b)
- P(i);OGATE::R1(F)
- P(j);::S(D),XP(j)
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).