MESON Chess Problem Database
Problem Display
PID: 56607 (3NKb1B/pR1P4/1P1kp2R/2r5/4B3/1b1N4/1r3q2/6Qn w - - 0 1)
Petite, Efren
2nd HM., Vukcevic MT, 2004-2005
#2
10 + 9
SOLUTION
- SOUND
- Sets
- 1...Qe1
- 2.Sf7#
- 2.Qxc5#
- 1...Qxg1
- 2.Sf7#
- 1...Qe3
- 2.Sf7#
- 1...Qg3
- 2.Sf7#
- 2.Qxc5#
- 1...Qd4
- 2.Sf7#
- 1...Qh4
- 2.Sf7#
- 2.Qxc5#
- 1...Qf1
- 2.Qxc5#
- 1...Qc2
- 2.Sf7#
- 1...Qd2
- 2.Sf7#
- 2.Qxc5#
- 1...Qe2
- 2.Sf7#
- 2.Qxc5#
- 1...Qg2
- 2.Sf7#
- 2.Qxc5#
- 1...Qh2
- 2.Sf7#
- 2.Qxc5#
- 1...Qf3
- 2.Qxc5#
- 1...Qf4
- 2.Qxc5#
- 1...Qf6
- 2.Qxc5#
- 1...Qf7+
- 2.Sxf7#
- 1...Rc1
- 2.Be5#
- 1...Rc2
- 2.Be5#
- 1...Rc3
- 2.Be5#
- 1...Rc4
- 2.Be5#
- 2.Rxe6#
- 1...Rd5
- 2.Rxe6#
- 1...Re5
- 2.Bxe5#
- 1...Rc6
- 2.Be5#
- 1...Rc7
- 2.Be5#
- 1...Rc8
- 2.Be5#
- 2.dxc8S#
- 1...Bd1
- 2.Rxe6#
- 1...Bc2
- 2.Rxe6#
- 1...Ba4
- 2.Rxe6#
- 1...Bd5
- 2.Be5#
- 1...Qe1
- Tries
- 1.Bf3?
- threat
- 2.Sf7#
- 1...Qxf3
- 2.Qxc5#
- 1...Rd5
- 2.Rxe6#
- 1...Rc8
- 2.Be5#
- 2.dxc8S#
- 1...Bd5
- 2.Be5#
- 1...Rf5!
- threat
- 1.Bf6?
- threat
- 2.Sf7#
- 1...Qxf6
- 2.Qxc5#
- 1...Rc8
- 2.Be5#
- 2.dxc8S#
- 1...Bd5
- 2.Be5#
- 1...e5
- 2.Bxe5#
- 2.Be7#
- 1...Rd5!
- threat
- 1.Rf6?
- threat
- 2.Sf7#
- 1...Qxf6
- 2.Qxc5#
- 1...Rd5
- 2.Rxe6#
- 1...Rc8
- 2.dxc8S#
- 1...Bd5!
- threat
- 1.Rc7?
- threat
- 2.Sb7#
- 1...Qf7+
- 2.Sxf7#
- 1...Rxc7
- 2.Be5#
- 1...Bd5
- 2.Be5#
- 1...axb6!
- threat
- 1.Rb8?
- threat
- 2.Sb7#
- 1...Qf7+
- 2.Sxf7#
- 1...Rd5
- 2.Rxe6#
- 1...Rc7
- 2.Be5#
- 1...Rc8
- 2.Be5#
- 2.dxc8S#
- 1...Bd5
- 2.Be5#
- 1...axb6!
- threat
- 1.Qh2+?
- 1...Qg3
- 2.Sf7#
- 1...Qxh2
- 2.Sf7#
- 1...Qf4
- 2.Sf7#
- 1...Re5
- 2.Bxe5#
- 2.Qxe5#
- 1...Sg3!
- 1...Qg3
- 1.Qg3+?
- 1...Qxg3
- 2.Sf7#
- 1...Qf4
- 2.Sf7#
- 1...Re5
- 2.Bxe5#
- 2.Qxe5#
- 1...Sxg3!
- 1...Qxg3
- 1.Bf3?
- Keys
- 1.Rxa7!
- threat
- 2.Sb7#
- 1...Qf7+
- 2.Sxf7#
- 1...Rd5
- 2.Rxe6#
- 1...Rc7
- 2.Be5#
- 1...Rc8
- 2.Be5#
- 2.dxc8S#
- 1...Bd5
- 2.Be5#
- threat
- 1.Rxa7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 16
- Sets
- Q(c);N_GUARD,XQ(A)::S(H)
- Q(c);N_GUARD::S(H)
- Q(c);OGATE::QAB1(A),XR(e)
- Q(c);N_SPINP(g),OGATE::QAB1(A),XR(e)
- Q(c);CHECK,N_GUARD::S(H),XQ(c)
- R(e);N_GUARD::B(J)
- R(e);S_CUTB(d)::R1(E),XP(g)
- R(e);N_GUARD::B(J),XR(e)
- B(d);N_GUARD::R1(E),XP(g)
- B(d);N_GUARD,P_PINP(G)::R1(E),XP(g)
- B(d);S_CUTR(e)::B(J)
- Tries
- Try
- B(C);
- Threat
- S(H)
- Vars
- Q(c);OGATE,XB(C)::QAB1(A),XR(e)
- R(e);S_CUTB(d)::R1(E),XP(g)
- B(d);S_CUTR(e)::B(J)
- Refutation
- R(e);
- Try
- B(J);N_PINP(g)
- Threat
- S(H)
- Vars
- Q(c);OGATE,XB(J)::QAB1(A),XR(e)
- B(d);S_CUTR(e)::B(J)
- Refutation
- R(e);
- Try
- R(E);
- Threat
- S(H)
- Vars
- Q(c);N_SPINP(g),OGATE,XR(E)::QAB1(A),XR(e)
- R(e);S_CUTB(d)::R1(E),XP(g)
- R(e);OGATE,P_PINS(H)::PXR(e)=S
- Refutation
- B(d);
- Try
- R(F);
- Threat
- S(H)
- Vars
- Q(c);CHECK,N_GUARD::S(H),XQ(c)
- R(e);N_GUARD,XR(F)::B(J)
- B(d);S_CUTR(e)::B(J)
- Refutation
- P(h);XP(D)
- Try
- R(F);
- Threat
- S(H)
- Vars
- Q(c);CHECK,N_GUARD::S(H),XQ(c)
- R(e);S_CUTB(d)::R1(E),XP(g)
- R(e);N_GUARD::B(J)
- B(d);S_CUTR(e)::B(J)
- Refutation
- P(h);XP(D)
- Try
- Q(A);CHECK
- Vars
- Q(c);P_SPINQ(c)::S(H)
- Q(c);XQ(A)::S(H)
- Refutation
- S(a);P_SPINS(a)
- Try
- Q(A);CHECK
- Vars
- Q(c);XQ(A)::S(H)
- Q(c);P_SPINQ(c)::S(H)
- Refutation
- S(a);XQ(A)
- Try
- Actual
- R(F);XP(h)
- Threat
- S(H)
- Vars
- Q(c);CHECK,N_GUARD::S(H),XQ(c)
- R(e);S_CUTB(d)::R1(E),XP(g)
- R(e);N_GUARD::B(J)
- B(d);S_CUTR(e)::B(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).