MESON Chess Problem Database
Problem Display
PID: 136409 (b2br3/B1p1RN2/4np2/5p2/QN2kppq/K4n2/1P4r1/5R1B w - - 0 1)
Delobel, Bernard
Source?, 2003
#2
9 + 13
| 6490 | yacpdb | 2010 |
SOLUTION
- SOUND
- Sets
- 1...Rg1
- 2.Qc2#
- 1...Rc2
- 2.Qxc2#
- 1...Rg3
- 2.Re1#
- 2.Qc2#
- 1...Bc6
- 2.Qxc6#
- 1...Sg1
- 2.Qc2#
- 1...Sd2
- 2.Qc2#
- 1...Sh2
- 2.Qc2#
- 1...Sg5
- 2.Qc2#
- 1...Rg1
- Tries
- 1.Sa2+?
- 1...Kd5
- 2.Sc3#
- 2.Rd7#
- 1...Sd4
- 2.Qxd4#
- 1...Kd3!
- 1...Kd5
- 1.Sc2+?
- 1...Kd5
- 2.Rd7#
- 1...Sd4
- 2.Qxd4#
- 1...Kd3!
- 1...Kd5
- 1.Sd3+?
- 1...Kd5
- 2.Rd7#
- 1...Sd4
- 2.Qxd4#
- 1...Kxd3!
- 1...Kd5
- 1.Sd5+?
- 1...Kxd5
- 2.Rd7#
- 1...Sd4
- 2.Qxd4#
- 1...Kd3!
- 1...Kxd5
- 1.Sa6+?
- 1...Kd5
- 2.Rd7#
- 1...Sd4
- 2.Qxd4#
- 1...Kd3!
- 1...Kd5
- 1.Sc6+?
- 1...Kd5
- 2.Rd7#
- 1...Sd4
- 2.Qxd4#
- 1...Kd3!
- 1...Kd5
- 1.Rxe6+?
- 1...Se5
- 2.Qc2#
- 1...Rxe6!
- 1...Se5
- 1.Qd1?
- threat
- 2.Qd3#
- 1...Se1
- 2.Qe2#
- 2.Qd4#
- 1...Sd2
- 2.Qc2#
- 2.Qe2#
- 1...Se5
- 2.Qe2#
- 1...Rd2!
- threat
- 1.Qb3?
- threat
- 2.Qd3#
- 1...Rd2
- 2.Qxe6#
- 1...Se1
- 2.Qc4#
- 2.Qxe6#
- 1...Se5!
- threat
- 1.Qb5?
- threat
- 2.Qd3#
- 1...Se1
- 2.Qe2#
- 2.Qc4#
- 1...Se5
- 2.Qe2#
- 1...Rd2!
- threat
- 1.Qd7?
- threat
- 2.Qd3#
- 1...Sd4
- 2.Qxd4#
- 1...Rd2
- 2.Qxe6#
- 1...Bd5
- 2.Qxd5#
- 1...Se1
- 2.Qxe6#
- 2.Qd4#
- 1...Se5!
- threat
- 1.Sa2+?
- Keys
- 1.Qa6!
- threat
- 2.Qd3#
- 1...Rd2
- 2.Qxe6#
- 1...Se1
- 2.Qe2#
- 2.Qc4#
- 2.Qxe6#
- 1...Se5
- 2.Qe2#
- threat
- 1.Qa6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 7
- Sets
- R(a);N_GUARD,N_SPINS(h),P_SPINS(b)::QAB(E)
- R(a);N_GUARD,N_SPINS(h),P_SPINS(b)::QAB(E),XR(a)
- B(k);N_GUARD::QAB(E),XB(k)
- S(b);P_SPINR(a)::QAB(E)
- Tries
- Try
- S(F);CHECK
- Vars
- S(b);N_GUARD,N_SPINS(h),P_SPINR(a),P_SPINS(b)::QAR1(E),XS(b)
- Refutation
- K(c);N_SPINS(h),S_FLIGHT
- Try
- S(F);CHECK
- Vars
- K(c);N_SPINS(h),S_FLIGHT::R(H)
- S(b);N_GUARD,N_SPINS(h),P_SPINR(a),P_SPINS(b)::QAR1(E),XS(b)
- Refutation
- K(c);N_SPINS(h),S_FLIGHT
- Try
- S(F);CHECK
- Vars
- K(c);N_SPINS(h),S_FLIGHT::R(H)
- S(b);N_GUARD,N_SPINS(h),P_SPINR(a),P_SPINS(b)::QAR1(E),XS(b)
- Refutation
- K(c);N_SPINS(h),S_FLIGHT,XS(F)
- Try
- S(F);CHECK
- Vars
- K(c);N_SPINS(h),S_FLIGHT,XS(F)::R(H)
- S(b);N_GUARD,N_SPINS(h),P_SPINR(a),P_SPINS(b)::QAR1(E),XS(b)
- Refutation
- K(c);N_SPINS(h),S_FLIGHT
- Try
- S(F);CHECK
- Vars
- K(c);N_SPINS(h),S_FLIGHT::R(H)
- S(b);N_GUARD,N_SPINS(h),P_SPINR(a),P_SPINS(b)::QAR1(E),XS(b)
- Refutation
- K(c);N_SPINS(h),S_FLIGHT
- Try
- S(F);CHECK
- Vars
- K(c);N_SPINS(h),S_FLIGHT::R(H)
- S(b);N_GUARD,N_SPINS(h),P_SPINR(a),P_SPINS(b)::QAR1(E),XS(b)
- Refutation
- K(c);N_SPINS(h),S_FLIGHT
- Try
- R(H);CHECK,XS(h)
- Vars
- S(b);P_SPINR(a),P_SPINS(b)::QAB(E)
- Refutation
- R(m);XR(H)
- Try
- Q(E);
- Threat
- QAB1(E)
- Vars
- S(b);N_SPINS(h),P_SPINR(a)::QAR2(E)
- Refutation
- R(a);N_SPINS(h),P_SPINS(b)
- Try
- Q(E);
- Threat
- QAB1(E)
- Vars
- R(a);N_SPINS(h),P_SPINS(b)::QAR2(E),XS(h)
- Refutation
- S(b);N_SPINS(h),P_SPINR(a)
- Try
- Q(E);
- Threat
- QAB1(E)
- Vars
- S(b);N_SPINS(h),P_SPINR(a)::QAR2(E)
- Refutation
- R(a);N_SPINS(h),P_SPINS(b)
- Try
- Q(E);
- Threat
- QAB1(E)
- Vars
- S(b);N_GUARD,P_SPINR(a)::QAR1(E),XS(b)
- R(a);N_SPINS(h),P_SPINS(b)::QAR2(E),XS(h)
- B(k);N_GUARD::QAB1(E),XB(k)
- Refutation
- S(b);N_SPINS(h),P_SPINR(a)
- Try
- Actual
- Q(E);
- Threat
- QAB1(E)
- Vars
- R(a);N_SPINS(h),P_SPINS(b)::QAR2(E),XS(h)
- S(b);N_SPINS(h),P_SPINR(a)::QAR2(E)
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).