MESON Chess Problem Database
Problem Display
PID: 270459 (KQ6/2N1PnB1/1bPk4/1P1p2rN/1P2p3/7b/3R4/8 w - - 0 1)
le Grand, Henk
Probleemblad, 2022
#2
10 + 7
SOLUTION
- SOUND
- Sets
- 1...Kxe7
- 2.Bf8#
- 2.Qf8#
- 1...Kxe7
- Tries
- 1.Rxd5+?
- 1...Kxe7
- 2.Bf6#
- 2.Bf8#
- 2.Qe8#
- 2.Qf8#
- 1...Rxd5!
- 1...Kxe7
- 1.Qd8+?
- 1...Bd7
- 2.Qxd7#
- 2.e8S#
- 1...Sxd8!
- 1...Bd7
- 1.Qf8?
- threat
- 2.e8S#
- 1...Kxc7
- 2.Qb8#
- 1...Bxc7
- 2.e8Q#
- 2.e8R#
- 1...Rxg7!
- threat
- 1.e8Q?
- threat
- 2.Bf8#
- 2.Qf8#
- 1...Rxg7
- 2.Rxd5#
- 1...Bxc7
- 2.Bf8#
- 1...Be6
- 2.Qxe6#
- 2.Qf8#
- 1...Re5!
- threat
- 1.e8R?
- threat
- 2.Bf8#
- 1...Rxg7
- 2.Rxd5#
- 1...Be6
- 2.Rxe6#
- 1...Re5!
- threat
- 1.Rxd5+?
- Keys
- 1.Bf8!
- threat
- 2.e8Q#
- 2.e8R#
- 1...Ke5
- 2.Rxd5#
- 1...Rxh5
- 2.e8Q#
- 2.e8R#
- 1...Bxc7
- 2.e8Q#
- 2.e8R#
- 1...Rg1
- 2.Rxd5#
- 2.e8Q#
- 2.e8R#
- 1...Rg2
- 2.Rxd5#
- 2.e8Q#
- 2.e8R#
- 1...Rg3
- 2.Rxd5#
- 2.e8Q#
- 2.e8R#
- 1...Rg4
- 2.Rxd5#
- 2.e8Q#
- 2.e8R#
- 1...Rf5
- 2.e8Q#
- 2.e8R#
- 1...Rg6
- 2.Rxd5#
- 2.e8Q#
- 2.e8R#
- 1...Rg7
- 2.Rxd5#
- 2.e8Q#
- 2.e8R#
- 1...Rg8
- 2.Rxd5#
- 1...Bf1
- 2.e8Q#
- 2.e8R#
- 1...Bg2
- 2.e8Q#
- 2.e8R#
- 1...Bg4
- 2.e8Q#
- 2.e8R#
- 1...Bf5
- 2.Rxd5#
- 2.e8Q#
- 2.e8R#
- 1...Be6
- 2.Se8#
- 1...Bd7
- 2.e8Q#
- 2.e8R#
- 1...Bc8
- 2.e8Q#
- 2.e8R#
- 1...Bg1
- 2.e8Q#
- 2.e8R#
- 1...Bf2
- 2.e8Q#
- 2.e8R#
- 1...Be3
- 2.e8Q#
- 2.e8R#
- 1...Bd4
- 2.e8Q#
- 2.e8R#
- 1...Ba5
- 2.e8Q#
- 2.e8R#
- 1...Bc5
- 2.e8Q#
- 2.e8R#
- 1...Ba7
- 2.e8Q#
- 2.e8R#
- 1...Se5
- 2.Rxd5#
- 2.e8Q#
- 2.e8S#
- 2.e8B#
- 2.e8R#
- 1...Sh6
- 2.e8Q#
- 2.e8R#
- 1...Sd8
- 2.e8Q#
- 2.e8R#
- 1...Sh8
- 2.e8Q#
- 2.e8R#
- 1...e3
- 2.e8Q#
- 2.e8R#
- 1...d4
- 2.e8Q#
- 2.e8R#
- threat
- 1.Bf8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- Tries
- Try
- R(A);CHECK,XP(c)
- Refutation
- R(d);XR(A)
- Try
- Q(J);CHECK
- Refutation
- S(g);XQ(J)
- Try
- Q(J);
- Threat
- P=S
- Vars
- K(f);N_SPINP(c),OGATEB,S_FLIGHT,XS(F)::QAB1(J)
- B(e);SBLOCK,XS(F)::P=Q
- Refutation
- R(d);XB(H)
- Try
- P(G);
- Threat
- DUALS(2)
- Vars
- R(d);N_GUARD,XB(H)::R1(A),XP(c)
- B(e);P_SPINB(e),XS(F)::B(H)
- Refutation
- R(d);
- Try
- P(G);
- Threat
- B(H)
- Vars
- R(d);N_GUARD,XB(H)::R1(A),XP(c)
- B(a);N_GUARD::R1(G),XB(a)
- Refutation
- R(d);
- Try
- Actual
- B(H);
- Threat
- P=Q
- Vars
- K(f);N_SPINP(c),S_CUTR(d),S_FLIGHT::R1(A),XP(c)
- R(d);XS(D)::P=Q
- B(e);P_SPINB(e),XS(F)::P=Q
- R(d);::P=Q
- R(d);N_GUARD::R1(A),XP(c)
- B(a);::P=Q
- B(a);SBLOCK::QAB(J)+S(F),DCHECK
- B(e);::P=Q
- B(e);N_SPINP(c)::P=Q
- S(g);::P=Q
- P(b);::P=Q
- P(c);::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).