MESON Chess Problem Database
Problem Display
PID: 139459 (2N2Q2/5B2/pr6/3R4/Kp2k1nb/3pPpP1/3P2P1/B1n2r2 w - - 0 1)
Gruber, Lutz-Dieter
Troll, 2010
#2
10 + 10
SOLUTION
- SOUND
- Sets
- 1...Rb5
- 2.Sd6#
- 1...Rd6
- 2.Sxd6#
- 1...Rf6
- 2.Qxb4#
- 1...Rg6
- 2.Qxb4#
- 1...Rh6
- 2.Qxb4#
- 1...Rb7
- 2.Sd6#
- 1...Rb8
- 2.Sd6#
- 1...Sf2
- 2.Re5#
- 1...Sh2
- 2.Re5#
- 1...Sxe3
- 2.Re5#
- 1...Se5
- 2.Rxe5#
- 1...Sf6
- 2.Re5#
- 1...Sh6
- 2.Re5#
- 1...Rb5
- Tries
- 1.Sxb6?
- threat
- 2.Bg6#
- 2.Qxb4#
- 1...Sxe3
- 2.Re5#
- 1...Se5
- 2.Rxe5#
- 1...Bf6
- 2.Bg6#
- 1...Be7
- 2.Bg6#
- 1...Sa2
- 2.Bg6#
- 1...Se2
- 2.Bg6#
- 1...Sb3
- 2.Bg6#
- 1...Sh6
- 2.Re5#
- 2.Qxb4#
- 1...b3
- 2.Bg6#
- 2.Qb4#
- 1...a5
- 2.Bg6#
- 1...fxg2!
- threat
- 1.Bg6+?
- 1...Rxg6
- 2.Qf5#
- 1...Kxd5!
- 1...Rxg6
- 1.Rd4+?
- 1...Ke5
- 2.Rf4#
- 1...Kf5!
- 1...Ke5
- 1.Rb5?
- threat
- 2.Bd5#
- 2.Qxb4#
- 1...Rxb5
- 2.Sd6#
- 1...Sxe3
- 2.Re5#
- 1...fxg2
- 2.Bd5#
- 1...Se5
- 2.Bd5#
- 2.Rxe5#
- 1...Bf6
- 2.Bg6#
- 1...Rc6
- 2.Bd5#
- 1...Rd6
- 2.Sxd6#
- 1...Re6
- 2.Qxb4#
- 1...Rf6
- 2.Qxb4#
- 1...Be7
- 2.Bd5#
- 1...Sa2
- 2.Bd5#
- 1...Se2
- 2.Bd5#
- 1...Sb3
- 2.Bd5#
- 1...Sf6
- 2.Bg6#
- 2.Re5#
- 2.Qxb4#
- 1...b3
- 2.Bd5#
- 2.Qb4#
- 1...a5
- 2.Bd5#
- 1...axb5+!
- threat
- 1.Rg5?
- threat
- 2.Bd5#
- 1...Sxe3
- 2.Re5#
- 1...Rb5
- 2.Sd6#
- 1...Rd6
- 2.Sxd6#
- 1...Re6
- 2.Qxb4#
- 1...Se5
- 2.Rxe5#
- 1...Sf6
- 2.Bg6#
- 2.Re5#
- 1...Bxg5!
- threat
- 1.Rh5?
- threat
- 2.Bd5#
- 1...Sxe3
- 2.Re5#
- 1...Rb5
- 2.Sd6#
- 1...Rd6
- 2.Sxd6#
- 1...Re6
- 2.Qxb4#
- 1...Se5
- 2.Rxe5#
- 1...Sf6
- 2.Bg6#
- 2.Re5#
- 1...Bg5!
- threat
- 1.Qd6?
- threat
- 2.Bg6#
- 2.Qf4#
- 1...Rxd6
- 2.Sxd6#
- 1...Bxg3
- 2.Bg6#
- 1...Sxe3
- 2.Re5#
- 2.Qf4#
- 2.Qe5#
- 1...Se5
- 2.Rxe5#
- 2.Qxe5#
- 1...Bg5
- 2.Bg6#
- 1...Se2
- 2.Bg6#
- 1...Sh6
- 2.Re5#
- 2.Qf4#
- 2.Qe5#
- 1...fxg2!
- threat
- 1.Sxb6?
- Keys
- 1.Ra5!
- threat
- 2.Bd5#
- 1...Sxe3
- 2.Re5#
- 1...Rb5
- 2.Sd6#
- 1...Bf6
- 2.Bg6#
- 1...Rd6
- 2.Sxd6#
- 1...Re6
- 2.Qxb4#
- 1...Rf6
- 2.Qxb4#
- 1...Sf6
- 2.Bg6#
- 2.Re5#
- threat
- 1.Ra5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 9
- Sets
- R(j);N_GUARD::S(I)
- R(j);N_GUARD::S(I),XR(j)
- R(j);N_GUARD::QAR(J),XP(e)
- S(g);N_GUARD::R1(G)
- S(g);N_GUARD,XP(D)::R1(G)
- S(g);N_GUARD::R1(G),XS(g)
- Tries
- Try
- S(I);XR(j)
- Threat
- DUALS(2)
- Vars
- S(g);N_GUARD,XP(D)::R1(G)
- S(g);N_GUARD::R1(G),XS(g)
- B(h);::B(H)
- S(a);::B(H)
- P(i);::B(H)
- Refutation
- P(d);XP(C)
- Try
- B(H);CHECK
- Vars
- R(j);XB(H)::QAB1(J)
- Refutation
- K(f);S_FLIGHT,XR(G)
- Try
- R(G);CHECK
- Vars
- K(f);OGATE,P-FLIGHT::B(A)+R(G)
- Refutation
- K(f);S_FLIGHT
- Try
- R(G);
- Threat
- DUALS(2)
- Vars
- R(j);N_GUARD,XR(G)::S(I)
- S(g);N_GUARD,XP(D)::R1(G)
- P(d);XP(C)::B(H)
- B(h);S_CUTR(j)::B(H)
- R(j);::B(H)
- R(j);N_GUARD::S(I),XR(j)
- R(j);::QAR(J),XP(e)
- B(h);::B(H)
- S(a);::B(H)
- P(i);::B(H)
- Refutation
- P(i);CHECK,XR(G)
- Try
- R(G);
- Threat
- B(H)
- Vars
- S(g);N_GUARD,XP(D)::R1(G)
- R(j);N_GUARD::S(I)
- R(j);N_GUARD::S(I),XR(j)
- R(j);N_GUARD::QAR(J),XP(e)
- S(g);N_GUARD::R1(G),XS(g)
- Refutation
- B(h);XR(G)
- Try
- R(G);
- Threat
- B(H)
- Vars
- S(g);N_GUARD,XP(D)::R1(G)
- R(j);N_GUARD::S(I)
- R(j);N_GUARD::S(I),XR(j)
- R(j);N_GUARD::QAR(J),XP(e)
- S(g);N_GUARD::R1(G),XS(g)
- Refutation
- B(h);
- Try
- Q(J);
- Threat
- DUALS(2)
- Vars
- R(j);XQ(J)::S(I),XR(j)
- B(h);XP(E)::B(H)
- B(h);::B(H)
- S(a);::B(H)
- Refutation
- P(d);XP(C)
- Try
- Actual
- R(G);
- Threat
- B(H)
- Vars
- S(g);N_GUARD,XP(D)::R1(G)
- R(j);N_GUARD::S(I)
- B(h);S_CUTR(j)::B(H)
- R(j);N_GUARD::S(I),XR(j)
- R(j);N_GUARD::QAR(J),XP(e)
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).