MESON Chess Problem Database
Problem Display
PID: 87826 (2rqb3/6Q1/N7/p4Rn1/2k5/r2NPp2/PB5n/5B1K w - - 0 1)
Suchodolski, Wlodzimierz
Polski Zwiazek Problemistow, 1948
#2
9 + 9
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qc7
- 2.Qd4#
- 1...Qe7
- 2.Qd4#
- 1...Qxd3
- 2.Qd4#
- 1...Qd4
- 2.Qxd4#
- 1...Qd5
- 2.Se5#
- 1...Rxa2
- 2.Qc3#
- 1...Rc3
- 2.Qxc3#
- 1...Rxd3
- 2.Qc3#
- 1...Ra4
- 2.Qc3#
- 1...Rc5
- 2.Rxc5#
- 1...Ra8
- 2.Rc5#
- 1...Rb8
- 2.Rc5#
- 1...Bc6
- 2.Rc5#
- 1...Bd7
- 2.Qd4#
- 1...Qc7
- Tries
- 1.Sc1+?
- 1...Qd3
- 2.Qd4#
- 1...Rd3
- 2.Qc3#
- 1...Sxf1!
- 1...Qd3
- 1.Se1+?
- 1...Qd3
- 2.Qd4#
- 1...Rd3
- 2.Qc3#
- 1...Sxf1!
- 1...Qd3
- 1.Sf2+?
- 1...Qd3
- 2.Qd4#
- 1...Rd3
- 2.Qc3#
- 1...Sxf1!
- 1...Qd3
- 1.Sdb4+?
- 1...Qd3
- 2.Qd4#
- 1...Rd3
- 2.Qc3#
- 1...Sxf1!
- 1...Qd3
- 1.Sf4+?
- 1...Qd3
- 2.Qd4#
- 1...Rd3
- 2.Qc3#
- 1...Sxf1!
- 1...Qd3
- 1.Ba1?
- threat
- 2.Sb2#
- 1...Qxd3
- 2.Qd4#
- 1...Rxa2
- 2.Qc3#
- 1...Rxd3
- 2.Qc3#
- 1...Qd4
- 2.Qxd4#
- 1...Qf6!
- threat
- 1.Bxa3?
- threat
- 2.Sb2#
- 1...Qxd3
- 2.Qd4#
- 1...Qd4
- 2.Qxd4#
- 1...Qf6!
- threat
- 1.Sc1+?
- Keys
- 1.Qb7!
- threat
- 2.Se5#
- 1...Qxd3
- 2.Qd5#
- 1...Rxd3
- 2.Qb3#
- 1...Rc6
- 2.Qb5#
- 1...Bc6
- 2.Rc5#
- threat
- 1.Qb7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 1
- REMOVED MATES = 11
- Sets
- Q(h);N_GUARD::QAR1(I)
- Q(h);N_GUARD,P_SPINQ(h),XS(E)::QAR1(I)
- Q(h);N_GUARD::QAR1(I),XQ(h)
- Q(h);SBLOCK::B(A)+S(E),DCHECK
- R(b);N_GUARD,XP(C)::QAR1(I)
- R(b);N_GUARD::QAR1(I),XR(b)
- R(b);N_GUARD,P_SPINR(b),XS(E)::QAR1(I)
- R(b);N_GUARD::QAR1(I)
- R(g);N_GUARD::R1(G),XR(g)
- R(g);N_GUARD::R1(G)
- B(i);S_CUTR(g)::R1(G)
- B(i);S_CUTQ(h)::QAR1(I)
- Tries
- Try
- S(E);CHECK
- Vars
- Q(h);P_SPINQ(h)::QAR1(I)
- R(b);P_SPINR(b)::QAR1(I)
- Refutation
- S(a);XB(A)
- Try
- S(E);CHECK
- Vars
- Q(h);P_SPINQ(h)::QAR1(I)
- R(b);P_SPINR(b)::QAR1(I)
- Refutation
- S(a);XB(A)
- Try
- S(E);CHECK
- Vars
- Q(h);P_SPINQ(h)::QAR1(I)
- R(b);P_SPINR(b)::QAR1(I)
- Refutation
- S(a);XB(A)
- Try
- S(E);CHECK
- Vars
- Q(h);P_SPINQ(h)::QAR1(I)
- R(b);P_SPINR(b)::QAR1(I)
- Refutation
- S(a);XB(A)
- Try
- S(E);CHECK
- Vars
- Q(h);P_SPINQ(h)::QAR1(I)
- R(b);P_SPINR(b)::QAR1(I)
- Refutation
- S(a);XB(A)
- Try
- B(D);
- Threat
- B(A)+S(E),DCHECK
- Vars
- Q(h);N_GUARD,P_SPINQ(h),XS(E)::QAR1(I)
- R(b);N_GUARD,XP(C)::QAR1(I)
- R(b);N_GUARD,P_SPINR(b),XS(E)::QAR1(I)
- Q(h);N_GUARD::QAR1(I),XQ(h)
- Refutation
- Q(h);
- Try
- B(D);XR(b)
- Threat
- B(A)+S(E),DCHECK
- Vars
- Q(h);N_GUARD,P_SPINQ(h),XS(E)::QAR1(I)
- Q(h);N_GUARD::QAR1(I),XQ(h)
- Refutation
- Q(h);
- Try
- Actual
- Q(I);
- Threat
- B(A)+S(E),DCHECK
- Vars
- Q(h);N_GUARD,P_SPINQ(h),XS(E)::QAB1(I)
- R(b);N_GUARD,P_SPINR(b),XS(E)::QAB1(I)
- R(g);S_CUTB(i)::QAB1(I)
- B(i);S_CUTR(g)::R1(G)
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).