MESON Chess Problem Database
Problem Display
PID: 142998 (B4R1b/KRN2r1b/p6r/2p3P1/2NQ2p1/3q1k2/4p1p1/4Bn2 w - - 0 1)
Francey, James
Comm., Sports Referee, 1932
#2
9 + 12
| 14867 | BCPS Library | 2011 |
SOLUTION
- SOUND
- Sets
- 1...Qb1
- 2.Rb3#
- 1...Qc2
- 2.Rb3#
- 1...Qxc4
- 2.Rb3#
- 1...Qe4
- 2.Qf2#
- 1...Qf5
- 2.Rb3#
- 1...Qg6
- 2.Rb3#
- 1...Qd1
- 2.Rb3#
- 1...Qd2
- 2.Rb3#
- 1...Qa3
- 2.Rb3#
- 1...Qb3
- 2.Rxb3#
- 1...Rhf6
- 2.Se5#
- 1...Rf4
- 2.Rxf4#
- 2.Qxf4#
- 1...Rff6
- 2.Se5#
- 1...Be4
- 2.Qf2#
- 1...Be5
- 2.Sxe5#
- 1...Qb1
- Tries
- 1.Sd2+?
- 1...Qxd2
- 2.Rb3#
- 1...Sxd2!
- 1...Qxd2
- 1.Rb1+?
- 1...Qe4
- 2.Qf2#
- 1...Be4
- 2.Qf2#
- 1...Rc6!
- 1...Qe4
- 1.Rb2+?
- 1...Qe4
- 2.Qf2#
- 1...Be4
- 2.Qf2#
- 1...Rc6!
- 1...Qe4
- 1.Rb3+?
- 1...Be4
- 2.Qf2#
- 2.Qxe4#
- 1...Rc6!
- 1...Be4
- 1.Rb4+?
- 1...Qe4
- 2.Qf2#
- 1...Be4
- 2.Qf2#
- 1...Rc6!
- 1...Qe4
- 1.Rb5+?
- 1...Qe4
- 2.Qf2#
- 1...Be4
- 2.Qf2#
- 1...Rc6!
- 1...Qe4
- 1.Rb6+?
- 1...Qe4
- 2.Qf2#
- 1...Be4
- 2.Qf2#
- 1...Rc6!
- 1...Qe4
- 1.Rbb8+?
- 1...Qe4
- 2.Qf2#
- 1...Be4
- 2.Qf2#
- 1...Rc6!
- 1...Qe4
- 1.Rxf7+?
- 1...Qf5
- 2.Rb3#
- 1...Rf6
- 2.Se5#
- 1...Bf6
- 2.Se5#
- 1...Bf5!
- 1...Qf5
- 1.Sd2+?
- Keys
- 1.Se6!
- threat
- 2.Rbxf7#
- 1...Rxf8
- 2.Rf7#
- 1...Qe4
- 2.Qf2#
- 1...Rhf6
- 2.Se5#
- 1...Rf4
- 2.Rxf4#
- 2.Qxf4#
- 1...Rf5
- 2.Rb3#
- 1...Rff6
- 2.Se5#
- 1...Be4
- 2.Qf2#
- 1...Bf5
- 2.Qf4#
- 1...Bf6
- 2.Qf4#
- threat
- 1.Se6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 10
- Sets
- Q(d);::B(H)+R(F),DCHECK
- Q(d);XS(B)::B(H)+R(F),DCHECK
- Q(d);SBLOCK::QAR1(C)
- Q(d);N_SPINR(j)::B(H)+R(F),DCHECK
- Q(d);::B(H)+R(F),DCHECK,XQ(d)
- R(i);N_SPINR(j),S_CUTB(l)::S(B)
- R(j);S_CUTB(l)::S(B)
- B(k);SBLOCK::QAR1(C)
- B(l);N_GUARD::S(B),XB(l)
- Tries
- Try
- S(B);CHECK
- Vars
- Q(d);XS(B)::B(H)+R(F),DCHECK
- Refutation
- S(a);XS(B)
- Try
- R(F);CHECK,P_SPINS(G)
- Vars
- Q(d);P_SPINQ(d)::QAR1(C)
- B(k);P_SPINB(k)::QAR1(C)
- Refutation
- R(i);N_SPINR(j),P_SPINR(i)
- Try
- R(F);CHECK,P_SPINS(G)
- Vars
- Q(d);P_SPINQ(d)::QAR1(C)
- B(k);P_SPINB(k)::QAR1(C)
- Refutation
- R(i);N_SPINR(j),P_SPINR(i)
- Try
- R(F);CHECK,P_PINQ(d),P_SPINS(G)
- Refutation
- R(i);N_SPINR(j),P_SPINR(i)
- Try
- R(F);CHECK,P_SPINS(G)
- Vars
- Q(d);P_SPINQ(d)::QAR1(C)
- B(k);P_SPINB(k)::QAR1(C)
- Refutation
- R(i);N_SPINR(j),P_SPINR(i)
- Try
- R(F);CHECK,P_SPINS(G)
- Vars
- Q(d);P_SPINQ(d)::QAR1(C)
- B(k);P_SPINB(k)::QAR1(C)
- Refutation
- R(i);N_SPINR(j),P_SPINR(i)
- Try
- R(F);CHECK,P_SPINS(G)
- Vars
- Q(d);P_SPINQ(d)::QAR1(C)
- B(k);P_SPINB(k)::QAR1(C)
- Refutation
- R(i);N_SPINR(j),P_SPINR(i)
- Try
- R(F);CHECK,P_SPINS(G)
- Vars
- Q(d);P_SPINQ(d)::QAR1(C)
- B(k);P_SPINB(k)::QAR1(C)
- Refutation
- R(i);N_SPINR(j),P_SPINR(i)
- Try
- R(I);CHECK,XR(j)
- Vars
- Q(d);P_SPINQ(d)::B(H)+R(F),DCHECK
- R(i);P_SPINR(i)::S(B)
- B(l);P_SPINB(l)::S(B)
- Refutation
- B(k);P_SPINB(k)
- Try
- Actual
- S(G);P_SPINR(F)
- Threat
- B(H)+R(F),DCHECK,XR(j)
- Vars
- R(j);N_PINR(F),N_SPINR(j),XR(I)::B(H)+R(F),DCHECK
- Q(d);SBLOCK::QAR1(C)
- R(i);N_SPINR(j),S_CUTB(l)::S(B)
- R(j);N_PINR(F)::B(H)+R(F)
- R(j);N_PINR(F),S_CUTB(l)::S(B)
- B(k);SBLOCK::QAR1(C)
- B(k);N_SPINR(j),S_CUTR(j)::QAR1(C)
- B(l);N_SPINR(j),S_CUTR(j)::QAR1(C)
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).