MESON Chess Problem Database
Problem Display
PID: 247148 (2B5/pN2Nn2/5pR1/K3k3/1B1p4/2n2P2/1R6/2Q5 w - - 0 1)
Dowd, Steven B
Sachmatija, 2021
#2
9 + 6
SOLUTION
- SOUND
- Sets
- 1...Sb1
- 2.Re2#
- 1...Sa2
- 2.Re2#
- 1...Se2
- 2.Rxe2#
- 1...Sa4
- 2.Re2#
- 1...Se4
- 2.f4#
- 1...Sb5
- 2.Re2#
- 1...Sd5
- 2.Sc6#
- 1...Sg5
- 2.Bd6#
- 1...Sd6
- 2.Bxd6#
- 1...Sh6
- 2.Bd6#
- 1...Sd8
- 2.Bd6#
- 1...Sh8
- 2.Bd6#
- 1...d3
- 2.Bxc3#
- 1...f5
- 2.Re6#
- 1...Sb1
- Tries
- 1.Ka6?
- 1...d3
- 2.Bxc3#
- 1...Sb1
- 2.Re2#
- 1...Sa2
- 2.Re2#
- 1...Se2
- 2.Rxe2#
- 1...Sa4
- 2.Re2#
- 1...Se4
- 2.f4#
- 1...Sb5
- 2.Re2#
- 1...Sd5
- 2.Sc6#
- 1...Sg5
- 2.Bd6#
- 1...Sd6
- 2.Bxd6#
- 1...Sh6
- 2.Bd6#
- 1...Sd8
- 2.Bd6#
- 1...Sh8
- 2.Bd6#
- 1...f5
- 2.Re6#
- 1...Sd1!
- 1...d3
- 1.Sd8?
- threat
- 2.Sdc6#
- 2.Sxf7#
- 1...d3
- 2.Sdc6#
- 1...Sg5
- 2.Sdc6#
- 1...Sd6
- 2.Sdc6#
- 1...Sh6
- 2.Sdc6#
- 1...Sh8
- 2.Sdc6#
- 1...Sxd8!
- threat
- 1.Bxc3?
- threat
- 2.Re2#
- 2.Rb5#
- 2.Qe3#
- 1...dxc3
- 2.Qe3#
- 1...Sg5
- 2.Rb5#
- 1...a6
- 2.Re2#
- 2.Qe3#
- 1...Sd6!
- threat
- 1.Bf5?
- threat
- 2.f4#
- 1...d3
- 2.Bxc3#
- 1...Se2
- 2.Rxe2#
- 1...Sd5!
- threat
- 1.Rc2?
- 1...d3
- 2.Bxc3#
- 1...Sd1
- 2.Rc5#
- 1...Sb1
- 2.Re2#
- 2.Rc5#
- 1...Sa2
- 2.Re2#
- 2.Rc5#
- 1...Se2
- 2.Rxe2#
- 2.Rc5#
- 1...Sa4
- 2.Re2#
- 1...Se4
- 2.f4#
- 1...Sb5
- 2.Re2#
- 2.Rc5#
- 1...Sd5
- 2.Sc6#
- 1...Sg5
- 2.Bd6#
- 1...Sd6
- 2.Bxd6#
- 1...Sh6
- 2.Bd6#
- 1...Sd8
- 2.Bd6#
- 1...Sh8
- 2.Bd6#
- 1...f5
- 2.Re6#
- 1...a6!
- 1...d3
- 1.Re2+?
- 1...Se4
- 2.Rxe4#
- 2.f4#
- 1...Sxe2!
- 1...Se4
- 1.Rg4?
- threat
- 2.Qf4#
- 1...Se2
- 2.Rxe2#
- 2.Re4#
- 2.Qc5#
- 1...Sd5
- 2.Sc6#
- 2.Sg6#
- 2.Re4#
- 1...f5!
- threat
- 1.Rg5+?
- 1...Sxg5
- 2.Bd6#
- 1...f5
- 2.Rxf5#
- 1...fxg5!
- 1...Sxg5
- 1.Rxf6?
- threat
- 2.Rf5#
- 2.Re6#
- 2.Qf4#
- 1...d3
- 2.Bxc3#
- 2.Qf4#
- 2.Qxc3#
- 1...Se2
- 2.Rf5#
- 2.Re6#
- 1...Sd5
- 2.Rf5#
- 2.Re6#
- 1...Sg5
- 2.Rf5#
- 2.Qf4#
- 2.Qxg5#
- 1...Sd6
- 2.Re6#
- 2.Qf4#
- 1...Sh6
- 2.Re6#
- 2.Qf4#
- 1...Sd8
- 2.Rf5#
- 2.Qf4#
- 2.Qg5#
- 1...Kxf6!
- threat
- 1.Qd2?
- threat
- 2.Qh2#
- 1...d3
- 2.Bxc3#
- 1...Se4
- 2.f4#
- 1...Sd5
- 2.Sc6#
- 1...f5
- 2.Re6#
- 1...Se2!
- threat
- 1.Qe3+?
- 1...Se4
- 2.Qxe4#
- 2.f4#
- 1...dxe3!
- 1...Se4
- 1.Qg5+?
- 1...Sxg5
- 2.Bd6#
- 1...f5
- 2.Re6#
- 2.Qxf5#
- 1...fxg5!
- 1...Sxg5
- 1.Ka6?
- Keys
- 1.Qh6!
- threat
- 2.Qh2#
- 1...Sxh6
- 2.Bd6#
- 1...d3
- 2.Bxc3#
- 1...Se2
- 2.Rxe2#
- 1...Se4
- 2.f4#
- 1...Sd5
- 2.Sc6#
- 1...f5
- 2.Re6#
- threat
- 1.Qh6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 8
- Sets
- S(a);N_GUARD::R(B)
- S(a);N_GUARD::R(B),XS(a)
- S(a);SBLOCK::P(C)
- S(a);SBLOCK::S(H)
- S(f);N_GUARD::B(D)
- S(f);N_GUARD::B(D),XS(f)
- P(b);OGATEB::B(D),XS(a)
- P(d);OGATE::R1(F)
- Tries
- Try
- K(E);P-FLIGHT
- Vars
- P(b);OGATEB::B(D),XS(a)
- S(a);N_GUARD::R(B)
- S(a);N_GUARD::R(B),XS(a)
- S(a);SBLOCK::P(C)
- S(a);SBLOCK::S(H)
- S(f);N_GUARD::B(D)
- S(f);N_GUARD::B(D),XS(f)
- P(d);OGATE::R1(F)
- Refutation
- S(a);
- Try
- S(G);
- Threat
- DUALS(2)
- Vars
- P(b);::S(G)
- S(f);::S(G)
- Refutation
- S(f);XS(G)
- Try
- B(D);P_PINP(b),XS(a)
- Threat
- DUALS(3)
- Vars
- P(b);N_SPINP(b),XB(D)::QAR2(A)
- S(f);::R(B)
- Refutation
- S(f);
- Try
- B(I);
- Threat
- P(C)
- Vars
- P(b);OGATEB::B(D),XS(a)
- S(a);N_GUARD::R(B),XS(a)
- Refutation
- S(a);
- Try
- R(B);
- Vars
- P(b);OGATEB::B(D),XS(a)
- S(a);OGATE::R(B)
- S(a);N_GUARD::R(B)
- S(a);SBLOCK::P(C)
- S(a);SBLOCK::S(H)
- S(f);N_GUARD::B(D)
- S(f);N_GUARD::B(D),XS(f)
- P(d);OGATE::R1(F)
- Refutation
- P(e);
- Try
- R(B);CHECK
- Refutation
- S(a);XR(B)
- Try
- R(F);
- Threat
- QAB1(A)
- Refutation
- P(d);
- Try
- R(F);CHECK
- Vars
- S(f);XR(F)::B(D)
- P(d);P_SPINP(d)::R1(F),XP(d)
- Refutation
- P(d);XR(F)
- Try
- R(F);XP(d)
- Threat
- DUALS(3)
- Refutation
- K(c);S_FLIGHT,XR(F)
- Try
- Q(A);
- Threat
- QAB(A)
- Vars
- P(b);OGATEB::B(D),XS(a)
- S(a);SBLOCK::P(C)
- S(a);SBLOCK::S(H)
- P(d);OGATE::R1(F)
- Refutation
- S(a);
- Try
- Q(A);CHECK
- Refutation
- P(b);XQ(A)
- Try
- Q(A);CHECK
- Vars
- S(f);XQ(A)::B(D)
- Refutation
- P(d);XQ(A)
- Try
- Actual
- Q(A);
- Threat
- QAB(A)
- Vars
- S(f);N_GUARD,XQ(A)::B(D)
- P(b);OGATEB::B(D),XS(a)
- S(a);N_GUARD::R(B),XS(a)
- S(a);SBLOCK::P(C)
- S(a);SBLOCK::S(H)
- P(d);OGATE::R1(F)
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).