MESON Chess Problem Database
Problem Display
PID: 136554 (2NR4/P1Pb2q1/3Bp2Q/K2k3r/1P1p1pP1/1PnppN2/6B1/2R5 w - - 0 1)
Fasano, Alessandro
L'Italia Scacchistica, 2002
#2
13 + 10
| 6490 | yacpdb | 2010 |
SOLUTION
- SOUND
- Sets
- 1...Ke4+
- 2.Sg5#
- 1...Kc6+
- 2.Se5#
- 1...Ke4+
- Tries
- 1.Se1+?
- 1...Se4
- 2.Rc5#
- 1...f3!
- 1...Se4
- 1.Sg1+?
- 1...Se4
- 2.Rc5#
- 1...f3!
- 1...Se4
- 1.Sd2+?
- 1...Se4
- 2.Bxe4#
- 2.Rc5#
- 1...f3!
- 1...Se4
- 1.Sh2+?
- 1...Se4
- 2.Rc5#
- 1...f3!
- 1...Se4
- 1.Sh4+?
- 1...Se4
- 2.Rc5#
- 1...f3!
- 1...Se4
- 1.Se5+?
- 1...Se4
- 2.Rc5#
- 1...f3!
- 1...Se4
- 1.Sg5+?
- 1...Se4
- 2.Bxe4#
- 2.Rc5#
- 1...f3!
- 1...Se4
- 1.Be5?
- threat
- 2.a8Q#
- 2.a8B#
- 1...Kc6
- 2.Sxd4#
- 2.a8Q#
- 2.a8B#
- 1...Qxe5
- 2.a8Q#
- 2.a8B#
- 1...Qxh6
- 2.a8Q#
- 2.a8B#
- 1...Qxg4
- 2.a8Q#
- 2.a8B#
- 1...Rxe5
- 2.a8Q#
- 2.a8B#
- 1...Rxh6
- 2.a8Q#
- 2.a8B#
- 1...Qf6
- 2.a8Q#
- 2.a8B#
- 1...Qf8
- 2.a8Q#
- 2.a8B#
- 1...Qh8
- 2.a8Q#
- 2.a8B#
- 1...Qg5
- 2.a8Q#
- 2.a8B#
- 1...Qg6
- 2.a8Q#
- 2.a8B#
- 1...Qe7
- 2.a8Q#
- 2.a8B#
- 1...Qf7
- 2.a8Q#
- 2.a8B#
- 1...Qh7
- 2.a8Q#
- 2.a8B#
- 1...Qg8
- 2.a8Q#
- 2.a8B#
- 1...Rh1
- 2.a8Q#
- 2.a8B#
- 1...Rh2
- 2.a8Q#
- 2.a8B#
- 1...Rh3
- 2.a8Q#
- 2.a8B#
- 1...Rh4
- 2.a8Q#
- 2.a8B#
- 1...Rf5
- 2.a8Q#
- 2.a8B#
- 1...Rg5
- 2.a8Q#
- 2.a8B#
- 1...Sb1
- 2.a8Q#
- 2.a8B#
- 1...Sd1
- 2.a8Q#
- 2.a8B#
- 1...Sa2
- 2.a8Q#
- 2.a8B#
- 1...Se2
- 2.a8Q#
- 2.a8B#
- 1...Sa4
- 2.a8Q#
- 2.a8B#
- 1...Se4
- 2.Sb6#
- 2.a8Q#
- 2.a8B#
- 1...Sb5
- 2.a8Q#
- 2.a8B#
- 1...d2
- 2.a8Q#
- 2.a8B#
- 1...e2
- 2.a8Q#
- 2.a8B#
- 1...Ke4!
- threat
- 1.Rxd7?
- threat
- 2.a8Q#
- 2.a8B#
- 1...Ke4+
- 2.Sg5#
- 1...Kc6+
- 2.Se5#
- 1...Qxh6
- 2.a8Q#
- 2.a8B#
- 1...Qxg4
- 2.a8Q#
- 2.a8B#
- 1...Rxh6
- 2.a8Q#
- 2.a8B#
- 1...Qe5
- 2.a8Q#
- 2.a8B#
- 1...Qf6
- 2.a8Q#
- 2.a8B#
- 1...Qf8
- 2.a8Q#
- 2.a8B#
- 1...Qh8
- 2.a8Q#
- 2.a8B#
- 1...Qg5
- 2.a8Q#
- 2.a8B#
- 1...Qg6
- 2.a8Q#
- 2.a8B#
- 1...Qe7
- 2.a8Q#
- 2.a8B#
- 1...Qf7
- 2.a8Q#
- 2.a8B#
- 1...Qh7
- 2.a8Q#
- 2.a8B#
- 1...Qg8
- 2.a8Q#
- 2.a8B#
- 1...Rh1
- 2.a8Q#
- 2.a8B#
- 1...Rh2
- 2.a8Q#
- 2.a8B#
- 1...Rh3
- 2.a8Q#
- 2.a8B#
- 1...Rh4
- 2.a8Q#
- 2.a8B#
- 1...Re5
- 2.a8Q#
- 2.a8B#
- 1...Rf5
- 2.a8Q#
- 2.a8B#
- 1...Rg5
- 2.a8Q#
- 2.a8B#
- 1...Sb1
- 2.a8Q#
- 2.a8B#
- 1...Sd1
- 2.a8Q#
- 2.a8B#
- 1...Sa2
- 2.a8Q#
- 2.a8B#
- 1...Se2
- 2.a8Q#
- 2.a8B#
- 1...Sa4
- 2.a8Q#
- 2.a8B#
- 1...Se4
- 2.Sb6#
- 2.a8Q#
- 2.a8B#
- 1...Sb5
- 2.a8Q#
- 2.a8B#
- 1...d2
- 2.a8Q#
- 2.a8B#
- 1...e2
- 2.a8Q#
- 2.a8B#
- 1...e5
- 2.a8Q#
- 2.a8B#
- 1...Qxd7!
- threat
- 1.Qxe6+?
- 1...Kc6+
- 2.Se5#
- 1...Bxe6
- 2.a8Q#
- 2.a8B#
- 1...Kxe6+!
- 1...Kc6+
- 1.Se1+?
- Keys
- 1.Bxf4!
- threat
- 2.a8Q#
- 2.a8B#
- 1...Ke4+
- 2.Se5#
- 1...Kc6+
- 2.Sg5#
- 1...Qxh6
- 2.a8Q#
- 2.a8B#
- 1...Qxg4
- 2.a8Q#
- 2.a8B#
- 1...Rxh6
- 2.a8Q#
- 2.a8B#
- 1...Qe5
- 2.a8Q#
- 2.a8B#
- 1...Qf6
- 2.a8Q#
- 2.a8B#
- 1...Qf8
- 2.a8Q#
- 2.a8B#
- 1...Qh8
- 2.a8Q#
- 2.a8B#
- 1...Qg5
- 2.a8Q#
- 2.a8B#
- 1...Qg6
- 2.a8Q#
- 2.a8B#
- 1...Qe7
- 2.a8Q#
- 2.a8B#
- 1...Qf7
- 2.a8Q#
- 2.a8B#
- 1...Qh7
- 2.a8Q#
- 2.a8B#
- 1...Qg8
- 2.a8Q#
- 2.a8B#
- 1...Rh1
- 2.a8Q#
- 2.a8B#
- 1...Rh2
- 2.a8Q#
- 2.a8B#
- 1...Rh3
- 2.a8Q#
- 2.a8B#
- 1...Rh4
- 2.a8Q#
- 2.a8B#
- 1...Re5
- 2.a8Q#
- 2.a8B#
- 1...Rf5
- 2.a8Q#
- 2.a8B#
- 1...Rg5
- 2.a8Q#
- 2.a8B#
- 1...Sb1
- 2.Se1#
- 2.Sg1#
- 2.Sd2#
- 2.Sh2#
- 2.Sh4#
- 2.Se5#
- 2.Sg5#
- 2.a8Q#
- 2.a8B#
- 1...Sd1
- 2.Se1#
- 2.Sg1#
- 2.Sd2#
- 2.Sh2#
- 2.Sh4#
- 2.Se5#
- 2.Sg5#
- 2.a8Q#
- 2.a8B#
- 1...Sa2
- 2.Se1#
- 2.Sg1#
- 2.Sd2#
- 2.Sh2#
- 2.Sh4#
- 2.Se5#
- 2.Sg5#
- 2.a8Q#
- 2.a8B#
- 1...Se2
- 2.Se1#
- 2.Sg1#
- 2.Sd2#
- 2.Sh2#
- 2.Sh4#
- 2.Se5#
- 2.Sg5#
- 2.a8Q#
- 2.a8B#
- 1...Sa4
- 2.Se1#
- 2.Sg1#
- 2.Sd2#
- 2.Sh2#
- 2.Sh4#
- 2.Se5#
- 2.Sg5#
- 2.a8Q#
- 2.a8B#
- 1...Se4
- 2.Sb6#
- 2.a8Q#
- 2.a8B#
- 1...Sb5
- 2.Se1#
- 2.Sg1#
- 2.Sd2#
- 2.Sh2#
- 2.Sh4#
- 2.Se5#
- 2.Sg5#
- 2.a8Q#
- 2.a8B#
- 1...d2
- 2.a8Q#
- 2.a8B#
- 1...e2
- 2.a8Q#
- 2.a8B#
- 1...e5
- 2.a8Q#
- 2.a8B#
- threat
- 1.Bxf4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- K(f);CHECK,S_FLIGHT::B(B)+S(D),DCHECK
- K(f);CHECK,P_SPINS(a),S_FLIGHT::B(B)+S(D),DCHECK
- Tries
- Try
- S(D);CHECK
- Vars
- S(a);OGATE,P_SPINS(a)::R1(A)
- Refutation
- P(e);P_SPINP(e)
- Try
- S(D);CHECK
- Vars
- S(a);OGATE,P_SPINS(a)::R1(A)
- Refutation
- P(e);P_SPINP(e)
- Try
- S(D);CHECK
- Refutation
- P(e);P_SPINP(e)
- Try
- S(D);CHECK
- Vars
- S(a);OGATE,P_SPINS(a)::R1(A)
- Refutation
- P(e);P_SPINP(e)
- Try
- S(D);CHECK
- Vars
- S(a);OGATE,P_SPINS(a)::R1(A)
- Refutation
- P(e);P_SPINP(e)
- Try
- S(D);CHECK
- Vars
- S(a);OGATE,P_SPINS(a)::R1(A)
- Refutation
- P(e);P_SPINP(e)
- Try
- S(D);CHECK
- Refutation
- P(e);P_SPINP(e)
- Try
- B(H);P_PINB(i)
- Threat
- P=Q
- Vars
- Q(j);XB(H)::P=Q
- Q(j);XQ(I)::P=Q
- Q(j);XP(F)::P=Q
- R(g);XB(H)::P=Q
- R(g);XQ(I)::P=Q
- Q(j);::P=Q
- R(g);::P=Q
- S(a);::P=Q
- P(b);::P=Q
- P(c);::P=Q
- Refutation
- K(f);N_SPINB(i),P_PINB(H),S_FLIGHT
- Try
- R(M);XB(i)
- Threat
- P=Q
- Vars
- K(f);CHECK,S_FLIGHT::B(B)+S(D),DCHECK
- K(f);CHECK,P_SPINS(a),S_FLIGHT::B(B)+S(D),DCHECK
- Q(j);XQ(I)::P=Q
- Q(j);XP(F)::P=Q
- R(g);XQ(I)::P=Q
- Q(j);::P=Q
- R(g);::P=Q
- S(a);::P=Q
- P(b);::P=Q
- P(c);::P=Q
- P(h);::P=Q
- Refutation
- Q(j);XR(M)
- Try
- Q(I);CHECK,XP(h)
- Vars
- K(f);CHECK,P_SPINS(a),S_FLIGHT::B(B)+S(D),DCHECK
- B(i);SBLOCK,XQ(I)::P=Q
- Refutation
- K(f);CHECK,S_FLIGHT,XQ(I)
- Try
- Actual
- B(H);P_PINB(i),XP(e)
- Threat
- P=Q
- Vars
- K(f);CHECK,N_SPINB(i),S_FLIGHT::B(B)+S(D)
- K(f);CHECK,N_SPINB(i),P_SPINP(h),P_SPINS(a),S_FLIGHT::B(B)+S(D)
- Q(j);XQ(I)::P=Q
- Q(j);XP(F)::P=Q
- R(g);XQ(I)::P=Q
- Q(j);::P=Q
- R(g);::P=Q
- P(b);::P=Q
- P(c);::P=Q
- P(h);::P=Q
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).