MESON Chess Problem Database
Problem Display
PID: 206614 (3r3n/4p1Q1/r1n3p1/1R4Np/1p2Pk1p/3pp2P/b4N1K/2B1b1RB w - - 0 1)
Fasano, Alessandro
Best Problems, 2020
#2
10 + 14
SOLUTION
- SOUND
- Sets
- 1...Rd5
- 2.Se6#
- 1...Ra8
- 2.Sxd3#
- 1...Rb8
- 2.Sxd3#
- 1...Rc8
- 2.Sxd3#
- 1...Re8
- 2.Sxd3#
- 1...Rf8
- 2.Sxd3#
- 1...Rg8
- 2.Sxd3#
- 1...Bb1
- 2.Se6#
- 1...Bd5
- 2.Sxd3#
- 1...Be6
- 2.Sxe6#
- 1...Sd4
- 2.Sxd3#
- 2.Qe5#
- 1...Sa5
- 2.Qe5#
- 1...Se5
- 2.Qxe5#
- 1...Sa7
- 2.Qe5#
- 1...Sb8
- 2.Qe5#
- 1...b3
- 2.Se6#
- 1...e5
- 2.Qf6#
- 1...e6
- 2.Qf6#
- 1...Rd5
- Tries
- 1.Rf1?
- threat
- 2.Sxd3#
- 1...Bxf2
- 2.Rxf2#
- 1...Rd5
- 2.Se6#
- 1...Se5
- 2.Qxe5#
- 1...e5
- 2.Qf6#
- 1...d2
- 2.Sd3#
- 1...Bd5!
- threat
- 1.Rg3?
- threat
- 2.Bxe3#
- 2.Rf3#
- 1...Bxf2
- 2.Rf3#
- 1...Rd5
- 2.Se6#
- 2.Bxe3#
- 1...Bd2
- 2.Rf3#
- 1...Bd5
- 2.Sxd3#
- 2.Bxe3#
- 1...Sd4
- 2.Sxd3#
- 2.Bxe3#
- 2.Qe5#
- 1...Se5
- 2.Bxe3#
- 2.Qxe5#
- 1...d2
- 2.Rf3#
- 1...e5
- 2.Bxe3#
- 2.Qf6#
- 1...hxg3+!
- threat
- 1.Qh6?
- threat
- 2.Se6#
- 1...Bd5
- 2.Sxd3#
- 1...Be6
- 2.Sxe6#
- 1...e6
- 2.Sxe6#
- 1...Rd5!
- threat
- 1.Qf8+?
- 1...Rxf8
- 2.Sxd3#
- 1...Bf7
- 2.Se6#
- 1...Sf7!
- 1...Rxf8
- 1.Qxg6?
- threat
- 2.Rf5#
- 2.Qf5#
- 1...Sxg6
- 2.Rf5#
- 1...Bd5
- 2.Sxd3#
- 2.Qf5#
- 1...Ra5
- 2.Qf5#
- 1...Rf8
- 2.Sxd3#
- 1...Be6
- 2.Sxe6#
- 1...Sd4
- 2.Sxd3#
- 1...Se5
- 2.Qf5#
- 1...e5
- 2.Qf5#
- 2.Qf6#
- 1...e6
- 2.Qf6#
- 1...Rd5!
- threat
- 1.Rf1?
- Keys
- 1.Rd5!
- threat
- 2.Sxd3#
- 2.Se6#
- 1...Rxd5
- 2.Se6#
- 1...Bxf2
- 2.Se6#
- 1...Bxd5
- 2.Sxd3#
- 1...Ra3
- 2.Se6#
- 1...Rd6
- 2.Sxd3#
- 1...Bb1
- 2.Se6#
- 1...Bc4
- 2.Se6#
- 1...Sd4
- 2.Sxd3#
- 2.Qe5#
- 1...Sa5
- 2.Sxd3#
- 2.Qe5#
- 1...Se5
- 2.Qxe5#
- 1...Sa7
- 2.Sxd3#
- 2.Qe5#
- 1...Sb8
- 2.Sxd3#
- 2.Qe5#
- 1...d2
- 2.Sd3#
- 2.Se6#
- 1...e6
- 2.Sxd3#
- 2.Sxe6#
- 2.Qf6#
- threat
- 1.Rd5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 13
- Sets
- R(m);S_CUTB(b)::S(I)
- R(m);N_GUARD::S(D),XP(c)
- B(b);N_GUARD::S(I)
- B(b);S_CUTR(m)::S(D),XP(c)
- B(b);N_GUARD::S(I),XB(b)
- S(j);N_GUARD::QAB1(J)
- S(j);N_GUARD::QAB1(J),XS(j)
- P(e);S_CUTB(b)::S(I)
- P(l);N_GUARD::QAR2(J)
- Tries
- Try
- R(B);
- Threat
- R(B)+S(D),DCHECK,XP(c)
- Vars
- B(a);OGATE,P_SPINB(a),XS(D)::R(B),XB(a)
- R(m);S_CUTB(b)::S(I)
- S(j);N_GUARD::QAB1(J),XS(j)
- P(l);N_GUARD::QAR2(J)
- P(c);N_SPINP(d)::R(B)+S(D),DCHECK
- Refutation
- B(b);
- Try
- R(B);
- Threat
- DUALS(2)
- Vars
- B(a);XS(D)::R1(B)
- B(a);N_SPINP(d)::R1(B)
- P(c);N_SPINP(d)::R1(B)
- Refutation
- P(g);CHECK,XR(B)
- Try
- Q(J);
- Threat
- QAB(J)+S(I),DCHECK
- Vars
- B(b);S_CUTR(m)::S(D),XP(c)
- B(b);::QAB(J)+S(I),DCHECK,XB(b)
- P(l);::QAB(J)+S(I),DCHECK,XP(l)
- Refutation
- R(m);
- Try
- Q(J);CHECK
- Vars
- R(m);XQ(J)::S(D),XP(c)
- B(b);P_SPINB(b)::S(I)
- Refutation
- S(n);P_SPINS(n)
- Try
- Q(J);XP(k)
- Threat
- DUALS(2)
- Vars
- S(n);XQ(J)::R1(H)
- R(i);::QAR1(J)
- R(m);N_GUARD::S(D),XP(c)
- B(b);N_GUARD::S(I),XB(b)
- S(j);S_CUTR(m)::S(D),XP(c)
- S(j);::QAR1(J)
- P(l);N_GUARD::QAR2(J)
- Refutation
- R(m);
- Try
- Actual
- R(H);
- Threat
- DUALS(2)
- Vars
- R(m);XR(H)::S(I)
- B(a);XS(D)::S(I)
- B(b);XR(H)::S(D),XP(c)
- R(i);::S(I)
- R(m);::S(D),XP(c)
- B(b);::S(I)
- S(j);N_GUARD::QAB1(J),XS(j)
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).