MESON Chess Problem Database
Problem Display
PID: 50325 (1K4N1/Q1B1P2b/2p5/pp1k1PNn/r1n1pp2/1R1p4/B7/2r5 w - - 0 1)
Pankratiev, Aleksandr Nikolaevich
Scacco!, 2003
#2
9 + 12
SOLUTION
- SOUND
- Sets
- 1...Sb2
- 2.Rxd3#
- 2.Rxb5#
- 1...Sd2
- 2.Rxd3#
- 2.Rxb5#
- 1...Sa3
- 2.Rxd3#
- 2.Rxb5#
- 1...Se3
- 2.Rxd3#
- 2.Rxb5#
- 1...Se5
- 2.Rxd3#
- 2.Rxb5#
- 1...Sd6
- 2.Rxb5#
- 1...Sg3
- 2.Sf6#
- 1...Sf6
- 2.Sxf6#
- 1...Sg7
- 2.Sf6#
- 1...e3
- 2.Rxd3#
- 1...Sb2
- Tries
- 1.Se6?
- threat
- 2.Qd4#
- 2.Qc5#
- 1...Sb2
- 2.Rxd3#
- 2.Rxb5#
- 1...Sd2
- 2.Rxd3#
- 2.Rxb5#
- 1...Sa3
- 2.Rxd3#
- 2.Rxb5#
- 1...Se3
- 2.Rxd3#
- 2.Rxb5#
- 1...Se5
- 2.Rxd3#
- 2.Rxb5#
- 1...Sb6
- 2.Rxd3#
- 2.Rxb5#
- 1...Sd6
- 2.Rxb5#
- 1...e3
- 2.Qd4#
- 1...c5
- 2.Qxc5#
- 2.Qb7#
- 2.Qa8#
- 1...Bxf5!
- threat
- 1.Be5?
- threat
- 2.Qd4#
- 1...Kxe5
- 2.Qc5#
- 1...Sxe5
- 2.Rxd3#
- 1...Sb2
- 2.Rxb5#
- 1...Sd2
- 2.Rxb5#
- 1...Sa3
- 2.Rxb5#
- 1...Se3
- 2.Rxb5#
- 1...Sb6
- 2.Rxb5#
- 1...Sd6
- 2.Rxb5#
- 1...c5!
- threat
- 1.Rxb5+?
- 1...c5
- 2.Qxc5#
- 1...cxb5!
- 1...c5
- 1.e8Q?
- threat
- 2.Se7#
- 2.Qf7#
- 2.Qxe4#
- 2.Qe6#
- 1...Bxf5
- 2.Se7#
- 1...Bxg8
- 2.Qxe4#
- 2.Qxg8#
- 1...Sb2
- 2.Rxd3#
- 2.Rxb5#
- 2.Qf7#
- 2.Qe6#
- 1...Sd2
- 2.Rxd3#
- 2.Rxb5#
- 2.Qf7#
- 2.Qe6#
- 1...Sa3
- 2.Rxd3#
- 2.Rxb5#
- 2.Qf7#
- 2.Qe6#
- 1...Se3
- 2.Rxd3#
- 2.Rxb5#
- 2.Qf7#
- 2.Qe6#
- 1...Se5
- 2.Rxd3#
- 2.Rxb5#
- 2.Qe6#
- 1...Sd6
- 2.Rxd3#
- 2.Rxb5#
- 2.Qe6#
- 1...c5
- 2.Qxe4#
- 1...Re1
- 2.Se7#
- 2.Qf7#
- 2.Qe6#
- 1...Bg6
- 2.Se7#
- 2.Qxe4#
- 2.Qe6#
- 1...Sg3
- 2.Sf6#
- 2.Se7#
- 2.Qf7#
- 2.Qe6#
- 1...Sf6
- 2.Sxf6#
- 2.Se7#
- 2.Qf7#
- 2.Qe6#
- 1...Sg7
- 2.Sf6#
- 2.Se7#
- 2.Qxe4#
- 1...e3
- 2.Se7#
- 2.Rxd3#
- 2.Qf7#
- 2.Qe4#
- 2.Qe6#
- 1...Sb6!
- threat
- 1.Se6?
- Keys
- 1.Bd6!
- threat
- 2.Qc5#
- 1...Kxd6
- 2.Qd4#
- 1...Sxd6
- 2.Rxb5#
- 1...Sb2
- 2.Rxd3#
- 1...Sd2
- 2.Rxd3#
- 1...Sa3
- 2.Rxd3#
- 1...Se3
- 2.Rxd3#
- 1...Se5
- 2.Rxd3#
- 1...Sb6
- 2.Rxd3#
- 1...c5
- 2.Qxc5#
- threat
- 1.Bd6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 8
- REMOVED MATES = 4
- Sets
- S(d);::B(A)+R(B),DCHECK,XP(h)
- S(j);N_GUARD::S(I)
- S(j);N_GUARD::S(I),XS(j)
- P(e);N_GUARD::R(B),XP(b)
- Tries
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- S(d);::B(A)+R(B),DCHECK,XP(h)
- P(e);::QAR1(E)
- Refutation
- B(l);XP(C)
- Try
- B(F);
- Threat
- QAR1(E)
- Vars
- K(i);P-FLIGHT,XB(F)::QAR2(E)
- S(d);SBLOCK,XB(F)::B(A)+R(B),DCHECK,XP(b)
- S(d);::B(A)+R(B),DCHECK,XP(h)
- Refutation
- P(k);
- Try
- R(B);CHECK,P_PINS(d),XP(h)
- Vars
- P(k);P_SPINP(k)::QAR1(E),XP(k)
- Refutation
- P(k);XR(B)
- Try
- P(G);
- Threat
- DUALS(4)
- Vars
- B(l);XP(C)::S(I)
- P(k);::QAB1(G),XP(e)
- Refutation
- S(d);
- Try
- Actual
- B(F);
- Threat
- QAR1(E)
- Vars
- K(i);P-FLIGHT,XB(F)::QAR2(E)
- S(d);SBLOCK,XB(F)::B(A)+R(B),DCHECK,XP(h)
- S(d);::B(A)+R(B),DCHECK,XP(b)
- P(k);::QAR1(E),XP(k)
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).