MESON Chess Problem Database
Problem Display
PID: 145628 (nR2b3/P1kPqn1Q/3pRN2/1Pb3pK/6B1/8/7B/3rr3 w - - 0 1)
Chicco, Adriano
Magyar Sakkvilag, 1932
#2
10 + 10
SOLUTION
- SOUND
- Sets
- 1...Qf8
- 2.d8Q#
- 2.d8B#
- 1...Qxe6
- 2.d8Q#
- 2.d8B#
- 1...Se5+
- 2.dxe8S#
- 1...Sh6+
- 2.dxe8S#
- 1...Sd8+
- 2.dxe8S#
- 1...Sh8+
- 2.dxe8S#
- 1...Qf8
- Tries
- 1.Sd5+?
- 1...Kxd7
- 2.Rxd6#
- 2.Rxe7#
- 1...Rxd5!
- 1...Kxd7
- 1.Sxe8+?
- 1...Kxd7
- 2.Rxd6#
- 1...Qxe8!
- 1...Kxd7
- 1.Rxe7?
- threat
- 2.Sxe8#
- 2.dxe8S#
- 2.d8Q#
- 2.d8B#
- 1...Se5+
- 2.Sxe8#
- 2.dxe8S#
- 1...Sh6+
- 2.Sxe8#
- 2.dxe8S#
- 1...Sd8+
- 2.Sxe8#
- 2.dxe8S#
- 1...Sh8+
- 2.Sxe8#
- 2.dxe8S#
- 1...Bxa7
- 2.d8Q#
- 1...Bxd7
- 2.Se8#
- 2.Rxd7#
- 1...Ra1
- 2.Sd5#
- 2.Sxe8#
- 2.dxe8S#
- 2.d8Q#
- 2.d8B#
- 1...Rb1
- 2.Sd5#
- 2.Sxe8#
- 2.dxe8S#
- 2.d8Q#
- 2.d8B#
- 1...Rc1
- 2.Sd5#
- 2.Sxe8#
- 2.dxe8S#
- 2.d8Q#
- 2.d8B#
- 1...Rd2
- 2.Sxe8#
- 2.dxe8S#
- 2.d8Q#
- 2.d8B#
- 1...Rd3
- 2.Sxe8#
- 2.dxe8S#
- 2.d8Q#
- 2.d8B#
- 1...Rd4
- 2.Sxe8#
- 2.dxe8S#
- 2.d8Q#
- 2.d8B#
- 1...Rd5
- 2.Sxd5#
- 2.Sxe8#
- 2.dxe8S#
- 2.d8Q#
- 2.d8B#
- 1...Rf1
- 2.Sxe8#
- 2.dxe8Q#
- 2.dxe8S#
- 2.dxe8B#
- 2.dxe8R#
- 2.d8Q#
- 2.d8B#
- 1...Rg1
- 2.Sxe8#
- 2.dxe8Q#
- 2.dxe8S#
- 2.dxe8B#
- 2.dxe8R#
- 2.d8Q#
- 2.d8B#
- 1...Rh1
- 2.Sxe8#
- 2.dxe8Q#
- 2.dxe8S#
- 2.dxe8B#
- 2.dxe8R#
- 2.d8Q#
- 2.d8B#
- 1...Re2
- 2.Sxe8#
- 2.dxe8S#
- 2.d8Q#
- 2.d8B#
- 1...Re3
- 2.Sxe8#
- 2.dxe8S#
- 2.d8Q#
- 2.d8B#
- 1...Re4
- 2.Sxe8#
- 2.dxe8S#
- 2.d8Q#
- 2.d8B#
- 1...Re5
- 2.Sxe8#
- 2.dxe8S#
- 2.d8Q#
- 2.d8B#
- 1...Re6
- 2.Sxe8#
- 2.dxe8S#
- 2.d8Q#
- 2.d8B#
- 1...Bg1
- 2.Sxe8#
- 2.dxe8S#
- 2.d8Q#
- 2.d8B#
- 1...Bf2
- 2.Sxe8#
- 2.dxe8S#
- 2.d8Q#
- 2.d8B#
- 1...Ba3
- 2.Sxe8#
- 2.dxe8S#
- 2.d8Q#
- 2.d8B#
- 1...Be3
- 2.Sxe8#
- 2.dxe8Q#
- 2.dxe8S#
- 2.dxe8B#
- 2.dxe8R#
- 2.d8Q#
- 2.d8B#
- 1...Bb4
- 2.Sxe8#
- 2.dxe8S#
- 2.d8Q#
- 2.d8B#
- 1...Bd4
- 2.Sd5#
- 2.Sxe8#
- 2.dxe8S#
- 2.d8Q#
- 2.d8B#
- 1...Bb6
- 2.Sxe8#
- 2.dxe8S#
- 2.d8Q#
- 2.d8B#
- 1...Sb6
- 2.Sxe8#
- 2.dxe8S#
- 2.d8Q#
- 2.d8B#
- 1...Rxe7!
- threat
- 1.dxe8Q?
- threat
- 2.Qc6#
- 2.Qxe7#
- 2.Qc8#
- 1...Qxf6
- 2.Qc6#
- 2.Qc8#
- 1...Qxe6
- 2.Qc6#
- 2.Qd8#
- 1...Rxe6
- 2.Qc6#
- 2.Qc8#
- 1...Bxa7
- 2.Qc8#
- 1...Qd8
- 2.Qc6#
- 2.Qxd8#
- 1...Qf8
- 2.Qc6#
- 2.Qd7#
- 1...Qd7
- 2.Qxd7#
- 1...Se5
- 2.Qc8#
- 2.Qd8#
- 1...Sd8
- 2.Qhxe7#
- 2.Qexe7#
- 2.Qxd8#
- 1...Sb6
- 2.Qc6#
- 1...Qxe8!
- threat
- 1.Sd5+?
- Keys
- 1.Rxd6!
- threat
- 2.Rc6#
- 1...Se5+
- 2.dxe8S#
- 1...Sxd6+
- 2.dxe8S#
- 1...Sh6+
- 2.dxe8S#
- 1...Sd8+
- 2.dxe8S#
- 1...Sh8+
- 2.dxe8S#
- 1...Qxd6
- 2.d8Q#
- 2.d8B#
- 1...Rxd6
- 2.Sd5#
- 1...Bxd6
- 2.Qc2#
- threat
- 1.Rxd6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- Q(g);N_GUARD,S_CUTS(h)::P=Q
- Q(g);N_GUARD,S_CUTS(h),XR(E)::P=Q
- S(h);CHECK,N_SPINP(e),S_CUTQ(g)::PXB(j)=S
- S(h);CHECK,S_CUTQ(g)::PXB(j)=S
- Tries
- Try
- S(F);CHECK
- Refutation
- R(a);XS(F)
- Try
- S(F);CHECK,XB(j)
- Vars
- K(f);N_SPINP(e),P-FLIGHT,XP(H)::B(B)+R(E),DCHECK,XP(e)
- Refutation
- Q(g);XS(F)
- Try
- R(E);XQ(g)
- Threat
- DUALS(4)
- Vars
- B(c);XP(G)::P=Q
- Refutation
- R(b);XR(E)
- Try
- P(H);XB(j)
- Threat
- DUALS(3)
- Vars
- B(c);XP(G)::QAR1(H)
- Q(g);N_GUARD::QAR1(H),XQ(g)
- S(i);::QAR1(H)
- Refutation
- Q(g);P_SPINS(h),XQ(H)
- Try
- Actual
- R(E);XP(e)
- Threat
- B(A)+R(E),DCHECK
- Vars
- S(h);CHECK,S_CUTQ(g)::PXB(j)=S
- S(h);CHECK,P_SPINS(h),S_CUTQ(g),XR(E)::PXB(j)=S
- Q(g);N_GUARD,P_SPINQ(g),S_CUTS(h),XR(E)::P=Q
- R(a);N_GUARD,P_SPINR(a),XR(E)::S(F)
- B(c);OGATEB,P_SPINB(c),XR(E)::QAR(I)
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).