MESON Chess Problem Database
Problem Display
PID: 196326 (1N2Kn2/2B1Pp2/2p5/2kbq2R/3p2pQ/2NPP3/8/rR4b1 w - - 0 1)
Coello Alonso, Jose Antonio
BCPS Website, 2019
#2
10 + 10
SOLUTION
- SOUND
- Sets
- 1...Qh2
- 2.Se4#
- 1...Qg3
- 2.Se4#
- 1...Qd6
- 2.Se4#
- 2.Bb6#
- 1...Qf6
- 2.Se4#
- 1...Qxc7
- 2.Se4#
- 1...Qg7
- 2.Se4#
- 1...Qh8
- 2.Se4#
- 1...Qe4
- 2.Sxe4#
- 1...Qf5
- 2.exf8Q#
- 2.exf8B#
- 1...Qxh5
- 2.exf8Q#
- 2.exf8B#
- 1...Qxe7+
- 2.Qxe7#
- 1...Rxb1
- 2.Sa6#
- 1...Ra4
- 2.Sxa4#
- 1...Ra6
- 2.Sxa6#
- 1...Ba2
- 2.Sa6#
- 1...Be6
- 2.exf8Q#
- 2.exf8B#
- 1...Se6
- 2.Sd7#
- 1...Sg6
- 2.Sd7#
- 1...Sd7
- 2.Sxd7#
- 1...Sh7
- 2.Sd7#
- 1...Qh2
- Tries
- 1.Bd6+?
- 1...Qxd6
- 2.Se4#
- 1...Kxd6!
- 1...Qxd6
- 1.Rxe5?
- threat
- 2.Se4#
- 2.exf8Q#
- 2.exf8B#
- 1...Rxb1
- 2.Sa6#
- 2.exf8Q#
- 2.exf8B#
- 1...Bxe3
- 2.Se4#
- 2.exf8Q#
- 2.exf8B#
- 1...dxc3
- 2.exf8Q#
- 2.exf8B#
- 1...Ra2
- 2.Se4#
- 2.exf8Q#
- 2.exf8B#
- 1...Ra3
- 2.Se4#
- 2.exf8Q#
- 2.exf8B#
- 1...Ra4
- 2.Sxa4#
- 2.Se4#
- 2.exf8Q#
- 2.exf8B#
- 1...Ra5
- 2.Se4#
- 2.exf8Q#
- 2.exf8B#
- 1...Ra6
- 2.Se4#
- 2.Sxa6#
- 2.exf8Q#
- 2.exf8B#
- 1...Ra7
- 2.Se4#
- 2.exf8Q#
- 2.exf8B#
- 1...Ra8
- 2.Se4#
- 2.exf8Q#
- 2.exf8B#
- 1...Bf2
- 2.Se4#
- 2.exf8Q#
- 2.exf8B#
- 1...Bh2
- 2.Se4#
- 2.exf8Q#
- 2.exf8B#
- 1...Se6
- 2.Se4#
- 2.Sd7#
- 1...Sg6
- 2.Se4#
- 2.Sd7#
- 1...Sd7
- 2.Se4#
- 2.Sxd7#
- 1...Sh7
- 2.Se4#
- 2.Sd7#
- 1...g3
- 2.Se4#
- 2.Qxd4#
- 2.exf8Q#
- 2.exf8B#
- 1...f5
- 2.exf8Q#
- 2.exf8B#
- 1...f6
- 2.Se4#
- 2.exf8Q#
- 2.exf8B#
- 1...dxe3!
- threat
- 1.Bd6+?
- Keys
- 1.Qf6!
- threat
- 2.Bb6#
- 1...Qxe7+
- 2.Qxe7#
- 1...Qxf6
- 2.Se4#
- 1...Qxc7
- 2.Se4#
- 1...Rxb1
- 2.Sa6#
- 1...Bb3
- 2.Qd6#
- 1...Qe6
- 2.Qxd4#
- 1...Ra6
- 2.Sxa6#
- 1...Be6
- 2.exf8Q#
- 2.exf8B#
- 1...Se6
- 2.Sd7#
- 1...Sd7
- 2.Sxd7#
- threat
- 1.Qf6!
This is a version of 196325
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 9
- Sets
- Q(g);N_GUARD,N_PINP(H),P_SPINB(f)::S(B)
- Q(g);N_GUARD,N_PINP(H),P_SPINB(f),XB(G)::S(B)
- Q(g);N_GUARD,P_SPINB(f)::S(B),XQ(g)
- Q(g);N_PINP(H)::PXS(j)=Q
- Q(g);N_PINP(H),XR(F)::PXS(j)=Q
- Q(g);CHECK,OGATE,P_SPINB(f),XP(H)::QAB(E),XQ(g)
- R(a);N_GUARD,XR(A)::S(I)
- R(a);N_GUARD::S(B),XR(a)
- R(a);N_GUARD::S(I),XR(a)
- B(f);P_SPINQ(g),S_CUTR(a)::S(I)
- B(f);N_PINP(H),P_SPINQ(g)::PXS(j)=Q
- S(j);N_GUARD,N_PINP(H)::S(I)
- S(j);N_GUARD::S(I)
- S(j);N_GUARD::S(I),XS(j)
- Tries
- Try
- B(G);CHECK
- Vars
- Q(g);N_PINP(H),P_SPINB(f),XB(G)::S(B)
- Refutation
- K(e);S_FLIGHT,XB(G)
- Try
- R(F);N_SPINP(H),P_PINB(f),XQ(g)
- Threat
- DUALS(3)
- Vars
- P(c);XS(B)::PXS(j)=Q
- P(i);::PXS(j)=Q
- Refutation
- P(c);XP(D)
- Try
- Actual
- Q(E);
- Threat
- B(G)
- Vars
- Q(g);CHECK,OGATE,P_SPINB(f),XP(H)::QAB(E),XQ(g)
- Q(g);N_GUARD,N_PINP(H),P_SPINB(f),XQ(E)::S(B)
- Q(g);N_GUARD,N_PINP(H),P_SPINB(f),XB(G)::S(B)
- R(a);N_GUARD,XR(A)::S(I)
- B(f);P_SPINQ(g)::QAB1(E)
- Q(g);OGATE,P_SPINB(f)::QAB1(E),XP(c)
- R(a);N_GUARD::S(I),XR(a)
- B(f);N_PINP(H),P_SPINQ(g)::PXS(j)=Q
- S(j);N_GUARD,N_PINP(H)::S(I)
- S(j);N_GUARD::S(I),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).