MESON Chess Problem Database
Problem Display
PID: 167328 (1b6/8/7B/Q3N3/p1Nkp1Rp/r4P2/2b1B2K/8 w - - 0 1)
Bottger, Horst
Der Tagesspiegel (Berlin), 1997
#2
8 + 7
| 15148 | Sadier Collection | 2018 |
| 3713 | Snap | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Be3#
- 1...Ra2
- 2.Be3#
- 1...Rd3
- 2.Rxe4#
- 1...Re3
- 2.Bxe3#
- 1...Bd1
- 2.Rxe4#
- 1...Bb3
- 2.Be3#
- 2.Rxe4#
- 1...Bd3
- 2.Be3#
- 1...Bxe5+
- 2.Qxe5#
- 1...Ba7
- 2.Sc6#
- 1...Ra1
- Tries
- 1.Kg1?
- threat
- 2.Sc6#
- 1...Bxe5
- 2.Qxe5#
- 1...Rd3
- 2.Rxe4#
- 1...Bd3
- 2.Be3#
- 1...Ra1+!
- threat
- 1.Kh1?
- threat
- 2.Sc6#
- 1...Bxe5
- 2.Qxe5#
- 1...Rd3
- 2.Rxe4#
- 1...Bd3
- 2.Be3#
- 1...Ra1+!
- threat
- 1.Kg2?
- threat
- 2.Sc6#
- 1...Bxe5
- 2.Qxe5#
- 1...Rd3
- 2.Rxe4#
- 1...Bd3
- 2.Be3#
- 1...h3+!
- threat
- 1.Sd6?
- threat
- 2.Sc6#
- 2.Sf5#
- 1...Rxf3
- 2.Sxf3#
- 2.Sc6#
- 1...Rc3
- 2.Sf5#
- 1...Bxd6!
- threat
- 1.Bd3?
- threat
- 2.Be3#
- 2.Rxe4#
- 1...Rxd3
- 2.Rxe4#
- 1...Bxd3
- 2.Be3#
- 1...Bxe5+!
- threat
- 1.Bf4?
- threat
- 2.Sc6#
- 1...Bxe5
- 2.Bxe5#
- 2.Qxe5#
- 1...exf3
- 2.Be3#
- 1...Bd3
- 2.Be3#
- 1...Rd3!
- threat
- 1.Rf4?
- threat
- 2.Sc6#
- 1...Bxe5
- 2.Qxe5#
- 1...Rd3
- 2.Rxe4#
- 1...Bd3!
- threat
- 1.Qb6+?
- 1...Kc3
- 2.Bd2#
- 2.Qb2#
- 1...Kd5!
- 1...Kc3
- 1.Kg1?
- Keys
- 1.Kh3!
- threat
- 2.Sc6#
- 1...Rxf3+
- 2.Sxf3#
- 1...Bxe5
- 2.Qxe5#
- 1...Rd3
- 2.Rxe4#
- 1...Bd3
- 2.Be3#
- threat
- 1.Kh3!
Anticipated by 261355(1989)
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 5
- Sets
- R(b);N_GUARD::B(H)
- R(b);S_CUTB(a)::R1(E),XP(e)
- R(b);N_GUARD::B(H),XR(b)
- B(a);N_GUARD::R1(E),XP(e)
- B(a);S_CUTR(b)::B(H)
- B(g);CHECK,OGATE,XS(G)::QAB1(F),XB(g)
- B(g);N_PINS(G)::S(G)
- Tries
- Try
- K(B);N_SPINS(G),S_FLIGHT
- Threat
- S(G)
- Vars
- B(g);OGATE,XS(G)::QAB1(F),XB(g)
- R(b);S_CUTB(a)::R1(E),XP(e)
- B(a);S_CUTR(b)::B(H)
- Refutation
- R(b);CHECK
- Try
- K(B);N_SPINS(G),P-FLIGHT
- Threat
- S(G)
- Vars
- B(g);OGATE,XS(G)::QAB1(F),XB(g)
- R(b);S_CUTB(a)::R1(E),XP(e)
- B(a);S_CUTR(b)::B(H)
- Refutation
- R(b);CHECK
- Try
- K(B);N_SPINS(G),P-FLIGHT
- Threat
- S(G)
- Vars
- B(g);OGATE,XS(G)::QAB1(F),XB(g)
- R(b);S_CUTB(a)::R1(E),XP(e)
- B(a);S_CUTR(b)::B(H)
- Refutation
- P(f);CHECK
- Try
- S(D);N_SPINS(G)
- Threat
- DUALS(2)
- Vars
- R(b);::S(D)
- Refutation
- B(g);P_PINS(G),XS(D)
- Try
- B(A);
- Threat
- DUALS(2)
- Vars
- R(b);XB(A)::R1(E),XP(e)
- B(a);XB(A)::B(H)
- Refutation
- B(g);CHECK,XS(G)
- Try
- B(H);N_PINP(e),N_SPINS(G)
- Threat
- S(G)
- Vars
- P(e);XP(C)::R(E)+B(H),DCHECK
- B(a);S_CUTR(b)::B(H)
- Refutation
- R(b);
- Try
- R(E);N_SPINS(G)
- Threat
- S(G)
- Vars
- B(g);OGATE,P_PINR(E),XS(G)::QAB1(F),XB(g)
- R(b);S_CUTB(a)::R1(E),XP(e)
- Refutation
- B(a);
- Try
- Q(F);CHECK
- Refutation
- K(d);N_SPINP(e),P-FLIGHT
- Try
- Actual
- K(B);N_SPINS(G),P-FLIGHT,P_SPINP(C)
- Threat
- S(G)
- Vars
- R(b);CHECK,XP(C)::S(G),XR(b)
- B(g);OGATE,XS(G)::QAB1(F),XB(g)
- R(b);S_CUTB(a)::R1(E),XP(e)
- B(a);N_PINP(C),S_CUTR(b)::B(H)
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).