MESON Chess Problem Database
Problem Display
PID: 160014 (b1n5/2rP3K/1N2B1R1/2P1k2N/r5P1/3Q4/6n1/2b5 w - - 0 1)
Ahues, Herbert Siegfried Oskar
Freie Presse, 1969
#2
9 + 7
| 15148 | Sadier Collection | 2017 |
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Sc4#
- 1...Ra2
- 2.Sc4#
- 1...Ra3
- 2.Sc4#
- 1...Rc4
- 2.Sxc4#
- 1...Rd4
- 2.Qf5#
- 1...Ra5
- 2.Sc4#
- 1...Ra6
- 2.Sc4#
- 1...Raa7
- 2.Sc4#
- 1...Rc6
- 2.Qd5#
- 1...Rb7
- 2.Qd5#
- 1...Rxd7+
- 2.Sxd7#
- 1...Bd5
- 2.Qxd5#
- 1...Ra1
- Tries
- 1.Ba2?
- threat
- 2.Re6#
- 1...Rxd7+
- 2.Sxd7#
- 1...Rxa2
- 2.Sc4#
- 1...Rc4
- 2.Sxc4#
- 1...Rc6
- 2.Qd5#
- 1...Bd5
- 2.Qxd5#
- 1...Sf4
- 2.Rg5#
- 1...Be4!
- threat
- 1.Bb3?
- threat
- 2.Re6#
- 1...Rxd7+
- 2.Sxd7#
- 1...Rc4
- 2.Sxc4#
- 1...Rc6
- 2.Qd5#
- 1...Bd5
- 2.Qxd5#
- 1...Sf4
- 2.Rg5#
- 1...Be4!
- threat
- 1.Bd5?
- threat
- 2.Re6#
- 1...Rxd7+
- 2.Sxd7#
- 1...Bxd5
- 2.Qxd5#
- 1...Sf4
- 2.Rg5#
- 1...Rc6!
- threat
- 1.Bf5?
- threat
- 2.Re6#
- 1...Rxd7+
- 2.Sxd7#
- 1...Rc6
- 2.Qd5#
- 1...Bd5
- 2.Qxd5#
- 1...Sf4!
- threat
- 1.Bf7?
- threat
- 2.Re6#
- 1...Rc6
- 2.Qd5#
- 1...Bd5
- 2.Qxd5#
- 1...Sf4
- 2.Rg5#
- 1...Be4!
- threat
- 1.Bg8?
- threat
- 2.Re6#
- 1...Rxd7+
- 2.Sxd7#
- 1...Rc6
- 2.Qd5#
- 1...Bd5
- 2.Qxd5#
- 1...Sf4
- 2.Rg5#
- 1...Be4!
- threat
- 1.Qc3+?
- 1...Ke4
- 2.Bf5#
- 1...Rd4!
- 1...Ke4
- 1.Ba2?
- Keys
- 1.Bc4!
- threat
- 2.Re6#
- 1...Rxd7+
- 2.Sxd7#
- 1...Rxc4
- 2.Sxc4#
- 1...Be4
- 2.Qc3#
- 1...Rc6
- 2.Qd5#
- 1...Bd5
- 2.Qxd5#
- 1...Sf4
- 2.Rg5#
- threat
- 1.Bc4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 8
- Sets
- R(c);N_GUARD::S(E)
- R(c);N_GUARD::S(E),XR(c)
- R(c);SBLOCK::QAR1(A)
- R(e);N_PINP(H),S_CUTB(f)::QAR1(A)
- R(e);S_CUTB(f)::QAR1(A)
- R(e);CHECK,XP(H)::S(E),XR(e)
- B(f);N_GUARD::QAR1(A),XB(f)
- Tries
- Try
- B(F);
- Threat
- R1(G)
- Vars
- R(e);CHECK,XP(H)::S(E),XR(e)
- R(c);N_GUARD,XB(F)::S(E)
- R(c);N_GUARD::S(E),XR(c)
- R(e);N_PINP(H),S_CUTB(f)::QAR1(A)
- B(f);N_GUARD::QAR1(A),XB(f)
- S(b);S_CUTB(a)::R(G)
- Refutation
- B(f);P_PINR(G)
- Try
- B(F);
- Threat
- R1(G)
- Vars
- R(e);CHECK,XP(H)::S(E),XR(e)
- R(c);N_GUARD::S(E),XR(c)
- R(e);N_PINP(H),S_CUTB(f)::QAR1(A)
- B(f);N_GUARD::QAR1(A),XB(f)
- S(b);S_CUTB(a)::R(G)
- Refutation
- B(f);P_PINR(G)
- Try
- B(F);
- Threat
- R1(G)
- Vars
- R(e);CHECK,XP(H)::S(E),XR(e)
- B(f);OGATE,XB(F)::QAR1(A),XB(f)
- S(b);S_CUTB(a)::R(G)
- Refutation
- R(e);N_PINP(H)
- Try
- B(F);
- Threat
- R1(G)
- Vars
- R(e);CHECK,XP(H)::S(E),XR(e)
- R(e);N_PINP(H),S_CUTB(f)::QAR1(A)
- B(f);N_GUARD::QAR1(A),XB(f)
- Refutation
- S(b);
- Try
- B(F);N_SPINP(H)
- Threat
- R1(G)
- Vars
- R(e);S_CUTB(f)::QAR1(A)
- B(f);N_GUARD::QAR1(A),XB(f)
- S(b);S_CUTB(a)::R(G)
- Refutation
- B(f);P_PINR(G)
- Try
- B(F);
- Threat
- R1(G)
- Vars
- R(e);CHECK,XP(H)::S(E),XR(e)
- R(e);N_PINP(H),S_CUTB(f)::QAR1(A)
- B(f);N_GUARD::QAR1(A),XB(f)
- S(b);S_CUTB(a)::R(G)
- Refutation
- B(f);P_PINR(G)
- Try
- Q(A);CHECK
- Vars
- K(d);P-FLIGHT::B(F)
- Refutation
- R(c);P_SPINR(c)
- Try
- Actual
- B(F);
- Threat
- R1(G)
- Vars
- R(e);CHECK,XP(H)::S(E),XR(e)
- R(c);XB(F)::S(E),XR(c)
- B(f);P_PINR(G),SBLOCK::QAB(A)
- R(e);N_PINP(H),S_CUTB(f)::QAR1(A)
- B(f);N_GUARD::QAR1(A),XB(f)
- S(b);S_CUTB(a)::R(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).