MESON Chess Problem Database
Problem Display
PID: 270558 (3R4/B3P1Nb/2B1ppr1/1p1Nk2q/4pp1r/8/nn6/1KR1Q3 w - - 0 1)
Uris, Miguel
64 Shakhmatnoe obozrenie, 2023
#2
9 + 12
SOLUTION
- SOUND
- Sets
- 1...Sxc1
- 2.Qc3#
- 1...Sc3+
- 2.Qxc3#
- 1...Sb4
- 2.Qc3#
- 1...exd5
- 2.Rxd5#
- 2.e8Q#
- 2.e8R#
- 1...Sxc1
- Tries
- 1.Sc3?
- threat
- 2.Bd4#
- 2.Bb8#
- 2.Qxe4#
- 1...Sxc3+
- 2.Qxc3#
- 1...f3
- 2.Bb8#
- 1...f5
- 2.Bd4#
- 1...Qd1
- 2.Qxe4#
- 1...Qe2
- 2.Bd4#
- 2.Bb8#
- 1...Qf3
- 2.Bd4#
- 2.Bb8#
- 1...Qf5
- 2.Bd4#
- 2.Bb8#
- 1...Rg1
- 2.Bd4#
- 2.Bb8#
- 1...Rg2
- 2.Bd4#
- 2.Bb8#
- 1...Rg3
- 2.Bd4#
- 2.Bb8#
- 1...Rgg4
- 2.Bd4#
- 2.Bb8#
- 1...Rg5
- 2.Bd4#
- 2.Bb8#
- 1...Rh6
- 2.Bd4#
- 2.Bb8#
- 1...Sc4
- 2.Bd4#
- 2.Qxe4#
- 1...e3
- 2.Bd4#
- 2.Bb8#
- 1...Rxg7!
- threat
- 1.Se3?
- threat
- 2.Bd4#
- 2.Bb8#
- 2.Rc5#
- 1...Sc3+
- 2.Qxc3#
- 1...Sxc1
- 2.Bd4#
- 2.Bb8#
- 2.Qc3#
- 1...fxe3
- 2.Bb8#
- 1...f3
- 2.Bb8#
- 1...f5
- 2.Bd4#
- 1...Sb4
- 2.Bd4#
- 2.Bb8#
- 2.Qc3#
- 1...Sd3
- 2.Bd4#
- 2.Bb8#
- 1...Sa4
- 2.Bd4#
- 2.Bb8#
- 1...Sc4
- 2.Bd4#
- 1...Qd1!
- threat
- 1.Sb6?
- threat
- 2.Bb8#
- 2.Rc5#
- 2.Qxe4#
- 1...Sc3+
- 2.Qxc3#
- 1...Rxg7
- 2.Rc5#
- 1...Sxc1
- 2.Bb8#
- 2.Qc3#
- 2.Qxe4#
- 1...f3
- 2.Bb8#
- 1...Qd1
- 2.Qxe4#
- 1...Qe2
- 2.Bb8#
- 2.Rc5#
- 1...Qf3
- 2.Bb8#
- 2.Rc5#
- 1...Qf5
- 2.Bb8#
- 2.Rc5#
- 1...Rg1
- 2.Bb8#
- 2.Rc5#
- 1...Rg2
- 2.Bb8#
- 2.Rc5#
- 1...Rg3
- 2.Bb8#
- 2.Rc5#
- 1...Rgg4
- 2.Bb8#
- 2.Rc5#
- 1...Rg5
- 2.Bb8#
- 2.Rc5#
- 1...Rh6
- 2.Bb8#
- 2.Rc5#
- 1...Sb4
- 2.Bb8#
- 2.Qc3#
- 2.Qxe4#
- 1...Sd3
- 2.Bb8#
- 2.Qxe4#
- 1...Sa4
- 2.Bb8#
- 2.Qxe4#
- 1...Sc4
- 2.Qxe4#
- 1...e3
- 2.Bb8#
- 2.Rc5#
- 1...f5!
- threat
- 1.Sc7?
- threat
- 2.Bd4#
- 2.Rc5#
- 2.Qxe4#
- 1...Sc3+
- 2.Qxc3#
- 1...Rxg7
- 2.Rc5#
- 1...Sxc1
- 2.Bd4#
- 2.Qc3#
- 2.Qxe4#
- 1...f5
- 2.Bd4#
- 1...Qd1
- 2.Qxe4#
- 1...Qe2
- 2.Bd4#
- 2.Rc5#
- 1...Qf3
- 2.Bd4#
- 2.Rc5#
- 1...Qf5
- 2.Bd4#
- 2.Rc5#
- 1...Rg1
- 2.Bd4#
- 2.Rc5#
- 1...Rg2
- 2.Bd4#
- 2.Rc5#
- 1...Rg3
- 2.Bd4#
- 2.Rc5#
- 1...Rgg4
- 2.Bd4#
- 2.Rc5#
- 1...Rg5
- 2.Bd4#
- 2.Rc5#
- 1...Rh6
- 2.Bd4#
- 2.Rc5#
- 1...Sb4
- 2.Bd4#
- 2.Qc3#
- 2.Qxe4#
- 1...Sd3
- 2.Bd4#
- 2.Qxe4#
- 1...Sa4
- 2.Bd4#
- 2.Qxe4#
- 1...Sc4
- 2.Bd4#
- 2.Qxe4#
- 1...e3
- 2.Bd4#
- 2.Rc5#
- 1...f3!
- threat
- 1.Sc3?
- Keys
- 1.Sb4!
- threat
- 2.Bd4#
- 2.Bb8#
- 2.Rc5#
- 2.Qxe4#
- 1...Sc3+
- 2.Qxc3#
- 1...Rxg7
- 2.Rc5#
- 1...Sxc1
- 2.Bd4#
- 2.Bb8#
- 2.Qc3#
- 2.Qxe4#
- 1...Sxb4
- 2.Bd4#
- 2.Bb8#
- 2.Qc3#
- 2.Qxe4#
- 1...f3
- 2.Bb8#
- 1...f5
- 2.Bd4#
- 1...Qd1
- 2.Qxe4#
- 1...Qe2
- 2.Bd4#
- 2.Bb8#
- 2.Rc5#
- 1...Qf3
- 2.Bd4#
- 2.Bb8#
- 2.Rc5#
- 1...Qf5
- 2.Bd4#
- 2.Bb8#
- 2.Rc5#
- 1...Rg1
- 2.Bd4#
- 2.Bb8#
- 2.Rc5#
- 1...Rg2
- 2.Bd4#
- 2.Bb8#
- 2.Rc5#
- 1...Rg3
- 2.Bd4#
- 2.Bb8#
- 2.Rc5#
- 1...Rgg4
- 2.Bd4#
- 2.Bb8#
- 2.Rc5#
- 1...Rg5
- 2.Bd4#
- 2.Bb8#
- 2.Rc5#
- 1...Rh6
- 2.Bd4#
- 2.Bb8#
- 2.Rc5#
- 1...Sd3
- 2.Sxd3#
- 2.Bd4#
- 2.Bb8#
- 2.Qxe4#
- 1...Sa4
- 2.Sd3#
- 2.Bd4#
- 2.Bb8#
- 2.Qxe4#
- 1...Sc4
- 2.Sd3#
- 2.Bd4#
- 2.Qxe4#
- 1...e3
- 2.Bd4#
- 2.Bb8#
- 2.Rc5#
- threat
- 1.Sb4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 2
- Sets
- S(a);N_GUARD,XR(B)::QAB(C)
- S(a);CHECK,N_GUARD::QAB(C),XS(a)
- S(a);N_GUARD::QAB(C)
- Tries
- Try
- S(D);
- Threat
- DUALS(3)
- Vars
- S(a);CHECK,OGATE,XS(D)::QAB(C),XS(a)
- P(d);::B(F)
- P(j);::B(F)
- Q(h);P_PINR(B)::QAR1(C),XP(c)
- Refutation
- R(k);XS(H)
- Try
- S(D);N_PINP(c)
- Threat
- DUALS(3)
- Vars
- S(a);CHECK,N_GUARD::QAB(C),XS(a)
- P(d);XS(D)::B(F)
- P(d);::B(F)
- P(j);::B(F)
- S(b);::B(F)
- Refutation
- Q(h);P_PINR(B)
- Try
- S(D);
- Threat
- DUALS(3)
- Vars
- S(a);CHECK,N_GUARD::QAB(C),XS(a)
- R(k);XS(H)::R(B)
- P(d);::B(F)
- Q(h);P_PINR(B)::QAR1(C),XP(c)
- S(b);::QAR1(C),XP(c)
- Refutation
- P(j);
- Try
- S(D);
- Threat
- DUALS(3)
- Vars
- S(a);CHECK,N_GUARD::QAB(C),XS(a)
- R(k);XS(H)::R(B)
- P(j);::B(F)
- Q(h);P_PINR(B)::QAR1(C),XP(c)
- Refutation
- P(d);
- Try
- Actual
- S(D);
- Threat
- DUALS(4)
- Vars
- S(a);CHECK,N_GUARD::QAB(C),XS(a)
- R(k);XS(H)::R(B)
- P(d);::B(F)
- P(j);::B(F)
- Q(h);P_PINR(B)::QAR1(C),XP(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).