MESON Chess Problem Database
Problem Display
PID: 89750 (1r6/8/q1Bp1P1B/1pb5/r3p1p1/4pkN1/RQ2R2K/5b2 w - - 0 1)
Bottger, Horst
Die Schwalbe, 1999
#2
8 + 11
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rxa2
- 2.Bxe4#
- 1...Ra3
- 2.Bxe4#
- 1...Rd4
- 2.Rxe3#
- 1...Ra5
- 2.Bxe4#
- 1...Bxe2
- 2.Qxe2#
- 1...Ba3
- 2.Rxe3#
- 1...Bb4
- 2.Bxe4#
- 2.Rxe3#
- 1...Bd4
- 2.Bxe4#
- 1...b4
- 2.Bxe4#
- 1...Rxa2
- Tries
- 1.Sf5?
- threat
- 2.Sh4#
- 1...Bxe2
- 2.Qxe2#
- 1...g3+!
- threat
- 1.Re1?
- threat
- 2.Rxf1#
- 1...Be2
- 2.Qxe2#
- 1...Bg2
- 2.Qe2#
- 2.Qxg2#
- 1...Bd3
- 2.Qg2#
- 1...Bh3
- 2.Qe2#
- 1...Bc4
- 2.Bxe4#
- 2.Qg2#
- 1...b4
- 2.Bxe4#
- 1...e2!
- threat
- 1.Qa3?
- threat
- 2.Rf2#
- 1...Rxa3
- 2.Bxe4#
- 1...Bxa3
- 2.Rxe3#
- 1...Bxe2!
- threat
- 1.Qc3?
- threat
- 2.Rf2#
- 1...Rxa2
- 2.Bxe4#
- 1...Bxe2!
- threat
- 1.Qd4?
- threat
- 2.Bxe4#
- 2.Rxe3#
- 1...Qxc6
- 2.Rxe3#
- 1...Rxa2
- 2.Bxe4#
- 2.Qxe4#
- 1...Rxd4
- 2.Rxe3#
- 1...Bxd4
- 2.Bxe4#
- 1...Qb7
- 2.Rxe3#
- 1...Qa8
- 2.Rxe3#
- 1...Ra3
- 2.Bxe4#
- 2.Qxe4#
- 1...Re8
- 2.Rxe3#
- 1...d5
- 2.Rxe3#
- 1...Bxe2!
- threat
- 1.Qe5?
- threat
- 2.Qf4#
- 2.Qf5#
- 1...Qc8
- 2.Qf4#
- 1...dxe5!
- threat
- 1.Qb3?
- threat
- 2.Rf2#
- 1...Rxa2
- 2.Bxe4#
- 1...Bxe2!
- threat
- 1.f7?
- threat
- 2.Qf6#
- 1...Rd4
- 2.Rxe3#
- 1...Bd4
- 2.Bxe4#
- 1...Qc8!
- threat
- 1.Sf5?
- Keys
- 1.Ra3!
- threat
- 2.Rf2#
- 1...Rxa3
- 2.Bxe4#
- 1...Bxe2
- 2.Qxe2#
- 1...Bxa3
- 2.Rxe3#
- threat
- 1.Ra3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 5
- Sets
- R(d);N_GUARD,XR(A)::B(F),XP(e)
- R(d);N_GUARD::B(F),XP(e)
- R(d);S_CUTB(h)::R1(C),XP(b)
- B(a);OGATE,XR(C)::QAB1(B),XB(a)
- B(h);N_GUARD::R1(C),XP(b)
- B(h);S_CUTR(d)::B(F),XP(e)
- P(g);S_CUTR(d)::B(F),XP(e)
- Tries
- Try
- S(E);
- Threat
- S(E)
- Vars
- B(a);OGATE,XR(C)::QAB1(B),XB(a)
- Refutation
- P(f);CHECK
- Try
- R(C);
- Threat
- R(C),XB(a)
- Vars
- B(a);N_GUARD::QAB1(B),XB(a)
- B(a);N_GUARD::QAB1(B)
- P(g);S_CUTR(d)::B(F),XP(e)
- Refutation
- P(b);
- Try
- Q(B);N_PINP(e),P_PINP(b)
- Threat
- R1(C)
- Vars
- R(d);N_GUARD,N_SPINP(b),P_SPINP(e),XQ(B)::B(F),XP(e)
- B(h);N_GUARD,N_SPINP(b),P_SPINP(e),XQ(B)::R1(C),XP(b)
- Refutation
- B(a);XR(C)
- Try
- Q(B);N_PINP(e),P_PINP(b)
- Threat
- R1(C)
- Vars
- R(d);N_GUARD,P_PINR(C),XR(A)::B(F),XP(e)
- Refutation
- B(a);XR(C)
- Try
- Q(B);
- Threat
- DUALS(2)
- Vars
- Q(i);N_SPINP(e),XB(F)::R1(C),XP(b)
- R(d);XQ(B)::R1(C),XP(b)
- B(h);XQ(B)::B(F),XP(e)
- Q(i);::R1(C),XP(b)
- R(k);::R1(C),XP(b)
- P(j);N_SPINP(e)::R1(C),XP(b)
- Refutation
- B(a);XR(C)
- Try
- Q(B);
- Threat
- DUALS(2)
- Vars
- Q(i);::QAR1(B)
- Refutation
- P(j);XQ(B)
- Try
- Q(B);N_PINP(e),P_PINP(b)
- Threat
- R1(C)
- Vars
- R(d);N_GUARD,P_PINR(C),XR(A)::B(F),XP(e)
- Refutation
- B(a);XR(C)
- Try
- P(G);
- Threat
- QAR(B)
- Vars
- R(d);S_CUTB(h)::R1(C),XP(b)
- B(h);S_CUTR(d)::B(F),XP(e)
- Refutation
- Q(i);
- Try
- Actual
- R(A);N_PINP(e),P_PINP(b)
- Threat
- R1(C)
- Vars
- R(d);N_GUARD,N_SPINP(b),P_SPINP(e),XR(A)::B(F),XP(e)
- B(a);OGATE,XR(C)::QAB1(B),XB(a)
- B(h);N_GUARD,N_SPINP(b),P_SPINP(e),XR(A)::R1(C),XP(b)
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).