MESON Chess Problem Database
Problem Display
PID: 221644 (1b1r3n/P1ppRn1Q/1pNB2b1/1p1k4/4N1B1/2R5/5K2/8 w - - 0 1)
Shanshin, Valery Yurevich
Die Schwalbe, 2019
#2
9 + 10
SOLUTION
- SOUND
- Sets
- 1...Se5
- 2.Rxe5#
- 1...Sg5
- 2.Re5#
- 1...Sxd6
- 2.Sf6#
- 2.Re5#
- 1...Sh6
- 2.Re5#
- 1...cxd6
- 2.Sf6#
- 1...Se5
- Tries
- 1.Ke3?
- threat
- 2.Sb4#
- 1...dxc6
- 2.Be6#
- 1...b4
- 2.Sxb4#
- 1...Bxe4!
- threat
- 1.Be6+?
- 1...Kxe4
- 2.Re3#
- 2.Qh1#
- 2.Qh4#
- 1...dxe6!
- 1...Kxe4
- 1.Bh2?
- threat
- 2.Sf6#
- 1...Bxe4
- 2.Qxe4#
- 1...Se5
- 2.Rxe5#
- 1...dxc6!
- threat
- 1.Bg3?
- threat
- 2.Sf6#
- 1...Bxe4
- 2.Qxe4#
- 1...Se5
- 2.Rxe5#
- 1...dxc6!
- threat
- 1.Bb4?
- threat
- 2.Sf6#
- 1...Bxe4
- 2.Qxe4#
- 1...dxc6!
- threat
- 1.Bf4?
- threat
- 2.Sf6#
- 1...Bxe4
- 2.Qxe4#
- 1...Se5
- 2.Rxe5#
- 1...dxc6!
- threat
- 1.Bc5?
- threat
- 2.Sb4#
- 1...Kxc6
- 2.a8Q#
- 2.a8B#
- 1...bxc5
- 2.Rxc5#
- 1...dxc6
- 2.Sf6#
- 1...b4
- 2.Sxb4#
- 1...Se5!
- threat
- 1.Rd3+?
- 1...Kxc6
- 2.a8Q#
- 2.a8B#
- 1...Kc4!
- 1...Kxc6
- 1.Qh1?
- threat
- 2.Qd1#
- 1...Se5
- 2.Rxe5#
- 1...Bxe4!
- threat
- 1.Qh3?
- threat
- 2.Qd3#
- 1...Se5
- 2.Rxe5#
- 1...Bxe4!
- threat
- 1.Qh6?
- threat
- 2.Qd2#
- 1...Sxh6
- 2.Re5#
- 1...Se5
- 2.Rxe5#
- 1...Sg5
- 2.Re5#
- 1...Bxe4!
- threat
- 1.Qxf7+?
- 1...Bxf7
- 2.Re5#
- 1...Sxf7!
- 1...Bxf7
- 1.Qg7?
- threat
- 2.Sb4#
- 2.Qd4#
- 1...Bxe4
- 2.Qd4#
- 1...Se5
- 2.Rxe5#
- 2.Qxe5#
- 1...b4
- 2.Sxb4#
- 2.Qd4#
- 1...dxc6!
- threat
- 1.Ke3?
- Keys
- 1.Be5!
- threat
- 2.Sf6#
- 1...Kxe4
- 2.Qh1#
- 1...Bxe4
- 2.Sb4#
- 1...Sxe5
- 2.Rxe5#
- threat
- 1.Be5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 3
- Sets
- S(g);N_GUARD::R1(H),XS(g)
- S(g);N_GUARD::R1(H)
- P(e);SBLOCK,XB(F)::S(C)
- Tries
- Try
- K(A);S_FLIGHT
- Threat
- S(E)
- Vars
- P(f);N_GUARD,XS(E)::B(D)
- P(a);::S(E),XP(a)
- Refutation
- B(d);XS(C)
- Try
- B(D);CHECK
- Refutation
- P(f);XB(D)
- Try
- B(F);
- Threat
- S(C)
- Vars
- B(d);OGATE,XS(C)::QAB1(I),XB(d)
- S(g);N_GUARD::R1(H),XS(g)
- Refutation
- P(f);XS(E)
- Try
- B(F);
- Threat
- S(C)
- Vars
- B(d);OGATE,XS(C)::QAB1(I),XB(d)
- S(g);N_GUARD::R1(H),XS(g)
- Refutation
- P(f);XS(E)
- Try
- B(F);
- Threat
- S(C)
- Vars
- B(d);OGATE,XS(C)::QAB1(I),XB(d)
- Refutation
- P(f);XS(E)
- Try
- B(F);
- Threat
- S(C)
- Vars
- B(d);OGATE,XS(C)::QAB1(I),XB(d)
- S(g);N_GUARD::R1(H),XS(g)
- Refutation
- P(f);XS(E)
- Try
- B(F);
- Threat
- S(E)
- Vars
- K(b);S_FLIGHT,XS(E)::P=Q
- P(c);OGATE,XB(F)::R1(B),XP(c)
- P(f);SBLOCK,XS(E)::S(C)
- P(a);::S(E),XP(a)
- Refutation
- S(g);
- Try
- R(B);CHECK
- Vars
- K(b);S_FLIGHT,XS(E)::P=Q
- Refutation
- K(b);S_FLIGHT
- Try
- Q(I);
- Threat
- QAR(I)
- Vars
- S(g);N_GUARD::R1(H),XS(g)
- Refutation
- B(d);P_SPINB(d),XS(C)
- Try
- Q(I);
- Threat
- QAR2(I)
- Vars
- S(g);N_GUARD::R1(H),XS(g)
- Refutation
- B(d);XS(C)
- Try
- Q(I);
- Threat
- QAR(I)
- Vars
- S(g);N_GUARD,XQ(I)::R1(H)
- S(g);N_GUARD::R1(H),XS(g)
- S(g);N_GUARD::R1(H)
- Refutation
- B(d);XS(C)
- Try
- Q(I);CHECK,XS(g)
- Vars
- B(d);XQ(I)::R1(H)
- Refutation
- S(j);XQ(I)
- Try
- Q(I);
- Threat
- DUALS(2)
- Vars
- B(d);XS(C)::QAR1(I)
- Refutation
- P(f);XS(E)
- Try
- Actual
- B(F);
- Threat
- S(C)
- Vars
- K(b);OGATEB,P_SPINB(d),S_FLIGHT,XS(C)::QAB(I)
- B(d);XS(C)::S(E)
- S(g);OGATE,XB(F)::R1(H),XS(g)
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).