MESON Chess Problem Database
Problem Display
PID: 261355 (6b1/8/B7/3N3Q/pR1pkN1p/2P4r/K2B1b2/8 w - - 0 1)
Bottger, Horst
Neue Zurcher Zeitung, 1989
#2
8 + 7
| 3713 | Snap | 2022 |
| 6490 | yacpdb | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Rh1
- 2.Bd3#
- 1...Rh2
- 2.Bd3#
- 1...Rd3
- 2.Bxd3#
- 1...Re3
- 2.Rxd4#
- 1...Be1
- 2.Rxd4#
- 1...Be3
- 2.Bd3#
- 1...Bg3
- 2.Bd3#
- 2.Rxd4#
- 1...Bxd5+
- 2.Qxd5#
- 1...Bh7
- 2.Sf6#
- 1...Rh1
- Tries
- 1.Ka1?
- threat
- 2.Sf6#
- 1...Bxd5
- 2.Qxd5#
- 1...Re3
- 2.Rxd4#
- 1...Be3
- 2.Bd3#
- 1...Rh1+!
- threat
- 1.Kb1?
- threat
- 2.Sf6#
- 1...Bxd5
- 2.Qxd5#
- 1...Re3
- 2.Rxd4#
- 1...Be3
- 2.Bd3#
- 1...Rh1+!
- threat
- 1.Kb2?
- threat
- 2.Sf6#
- 1...Bxd5
- 2.Qxd5#
- 1...Re3
- 2.Rxd4#
- 1...Be3
- 2.Bd3#
- 1...a3+!
- threat
- 1.Se6?
- threat
- 2.Sf6#
- 2.Sc5#
- 1...Rxc3
- 2.Sxc3#
- 2.Sf6#
- 1...Rf3
- 2.Sc5#
- 1...Bxe6!
- threat
- 1.Be3?
- threat
- 2.Bd3#
- 2.Rxd4#
- 1...Rxe3
- 2.Rxd4#
- 1...Bxe3
- 2.Bd3#
- 1...Bxd5+!
- threat
- 1.Bc4?
- threat
- 2.Sf6#
- 1...Bxd5
- 2.Bxd5#
- 2.Qxd5#
- 1...dxc3
- 2.Bd3#
- 1...Be3
- 2.Bd3#
- 1...Re3!
- threat
- 1.Rc4?
- threat
- 2.Sf6#
- 1...Bxd5
- 2.Qxd5#
- 1...Re3
- 2.Rxd4#
- 1...Be3!
- threat
- 1.Qg6+?
- 1...Kf3
- 2.Be2#
- 2.Qg2#
- 1...Ke5!
- 1...Kf3
- 1.Ka1?
- Keys
- 1.Ka3!
- threat
- 2.Sf6#
- 1...Rxc3+
- 2.Sxc3#
- 1...Bxd5
- 2.Qxd5#
- 1...Re3
- 2.Rxd4#
- 1...Be3
- 2.Bd3#
- threat
- 1.Ka3!
This anticipates 167328(1997)
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 5
- Sets
- R(b);N_GUARD::B(H)
- R(b);N_GUARD::B(H),XR(b)
- R(b);S_CUTB(a)::R1(D),XP(d)
- B(a);N_GUARD::R1(D),XP(d)
- B(a);S_CUTR(b)::B(H)
- B(g);CHECK,OGATE,XS(F)::QAB1(G),XB(g)
- B(g);N_PINS(F)::S(F)
- Tries
- Try
- K(A);N_SPINS(F),P-FLIGHT
- Threat
- S(F)
- Vars
- B(g);OGATE,XS(F)::QAB1(G),XB(g)
- R(b);S_CUTB(a)::R1(D),XP(d)
- B(a);S_CUTR(b)::B(H)
- Refutation
- R(b);CHECK
- Try
- K(A);N_SPINS(F),S_FLIGHT
- Threat
- S(F)
- Vars
- B(g);OGATE,XS(F)::QAB1(G),XB(g)
- R(b);S_CUTB(a)::R1(D),XP(d)
- B(a);S_CUTR(b)::B(H)
- Refutation
- R(b);CHECK
- Try
- K(A);N_SPINS(F),P-FLIGHT
- Threat
- S(F)
- Vars
- B(g);OGATE,XS(F)::QAB1(G),XB(g)
- R(b);S_CUTB(a)::R1(D),XP(d)
- B(a);S_CUTR(b)::B(H)
- Refutation
- P(c);CHECK
- Try
- S(E);N_SPINS(F)
- Threat
- DUALS(2)
- Vars
- R(b);::S(E)
- Refutation
- B(g);P_PINS(F),XS(E)
- Try
- B(B);
- Threat
- DUALS(2)
- Vars
- R(b);XB(B)::R1(D),XP(d)
- B(a);XB(B)::B(H)
- Refutation
- B(g);CHECK,XS(F)
- Try
- B(H);N_PINP(d),N_SPINS(F)
- Threat
- S(F)
- Vars
- P(d);XP(C)::R(D)+B(H),DCHECK
- B(a);S_CUTR(b)::B(H)
- Refutation
- R(b);
- Try
- R(D);N_SPINS(F)
- Threat
- S(F)
- Vars
- B(g);OGATE,P_PINR(D),XS(F)::QAB1(G),XB(g)
- R(b);S_CUTB(a)::R1(D),XP(d)
- Refutation
- B(a);
- Try
- Q(G);CHECK
- Refutation
- K(e);N_SPINP(d),P-FLIGHT
- Try
- Actual
- K(A);N_SPINS(F),P-FLIGHT,P_SPINP(C)
- Threat
- S(F)
- Vars
- R(b);CHECK,XP(C)::S(F),XR(b)
- B(g);OGATE,XS(F)::QAB1(G),XB(g)
- R(b);S_CUTB(a)::R1(D),XP(d)
- 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).