MESON Chess Problem Database
Problem Display
PID: 157989 (2r5/8/3P4/Pp1bQB2/2kp3r/1R1Np3/K1pR4/2bq4 w - - 0 1)
Ahues, Herbert Siegfried Oskar
Revista Romana de Sah, 1957
#2
8 + 10
| 15148 | Sadier Collection | 2016 |
SOLUTION
- SOUND
- Sets
- 1...Qf3
- 2.Rxc2#
- 1...Qg4
- 2.Rxc2#
- 1...Qh5
- 2.Rxc2#
- 1...Qf1
- 2.Rxc2#
- 1...Qg1
- 2.Rxc2#
- 1...Qh1
- 2.Rxc2#
- 1...Bh1
- 2.Qxb5#
- 1...Bg2
- 2.Qxb5#
- 1...Bf3
- 2.Qxb5#
- 1...Be4
- 2.Qxb5#
- 1...Bc6
- 2.Qc5#
- 1...Be6
- 2.Bxe6#
- 2.Qxb5#
- 2.Qxe6#
- 1...Bb7
- 2.Qxb5#
- 1...Bf7
- 2.Qxb5#
- 1...Ba8
- 2.Qxb5#
- 1...Bg8
- 2.Qxb5#
- 1...Qf3
- Tries
- 1.Sf4?
- threat
- 2.Qxd4#
- 2.Qxd5#
- 1...Kc5
- 2.Qxd5#
- 1...Qxd2
- 2.Qxd5#
- 1...Bxd2
- 2.Qxd5#
- 1...exd2
- 2.Qxd5#
- 1...b4
- 2.Qxd5#
- 1...Qf3
- 2.Rxc2#
- 2.Qxd4#
- 1...Qh1
- 2.Rxc2#
- 2.Qxd4#
- 1...Rc5
- 2.Bd3#
- 2.Qxd4#
- 1...Bb2
- 2.Qxd5#
- 1...Bh1
- 2.Bd3#
- 2.Qxd4#
- 2.Qxb5#
- 1...Bg2
- 2.Bd3#
- 2.Qxd4#
- 2.Qxb5#
- 1...Bf3
- 2.Bd3#
- 2.Qxd4#
- 2.Qxb5#
- 1...Be4
- 2.Qxd4#
- 2.Qxb5#
- 1...Bc6
- 2.Bd3#
- 2.Qxd4#
- 1...Be6
- 2.Bd3#
- 2.Bxe6#
- 2.Qxd4#
- 2.Qxb5#
- 1...Bb7
- 2.Bd3#
- 2.Qxd4#
- 2.Qxb5#
- 1...Bf7
- 2.Bd3#
- 2.Qxd4#
- 2.Qxb5#
- 1...Ba8
- 2.Bd3#
- 2.Qxd4#
- 2.Qxb5#
- 1...Bg8
- 2.Bd3#
- 2.Qxd4#
- 2.Qxb5#
- 1...d3
- 2.Qc3#
- 2.Qxd5#
- 1...Rxf4!
- threat
- 1.Be6?
- threat
- 2.Bxd5#
- 2.Qxd5#
- 1...Bxe6
- 2.Qxb5#
- 2.Qxe6#
- 1...b4
- 2.Qxd5#
- 1...Qf3
- 2.Rxc2#
- 1...Qh5
- 2.Bxd5#
- 2.Rxc2#
- 1...Qh1
- 2.Rxc2#
- 1...Rh5
- 2.Bxd5#
- 1...Rc5!
- threat
- 1.Sf4?
- Keys
- 1.Sb4!
- threat
- 2.Qxd5#
- 1...Kc5
- 2.Qxd5#
- 1...Qf3
- 2.Rxc2#
- 1...Qh1
- 2.Rxc2#
- 1...Rc5
- 2.Bd3#
- 1...Bh1
- 2.Bd3#
- 1...Bg2
- 2.Bd3#
- 1...Bf3
- 2.Bd3#
- 1...Be4
- 2.Qxd4#
- 1...Bc6
- 2.Bd3#
- 1...Be6
- 2.Bd3#
- 2.Bxe6#
- 1...Bb7
- 2.Bd3#
- 1...Bf7
- 2.Bd3#
- 1...Ba8
- 2.Bd3#
- 1...Bg8
- 2.Bd3#
- threat
- 1.Sb4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 9
- ADDED MATES = 2
- REMOVED MATES = 4
- Sets
- Q(b);N_GUARD::R(B),XP(c)
- B(i);OGATE::QAB1(F),XP(h)
- B(i);OGATE::QAR1(F)
- Tries
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- K(e);P-FLIGHT,P_PINR(C),P_SPINB(i)::QAR1(F),XB(i)
- Q(b);XR(B)::QAB1(F),XB(i)
- B(a);XR(B)::QAB1(F),XB(i)
- P(d);XR(B)::QAB1(F),XB(i)
- P(h);::QAB1(F),XB(i)
- B(a);::QAB1(F),XB(i)
- Refutation
- R(g);XS(D)
- Try
- B(G);P_PINB(i)
- Threat
- DUALS(2)
- Vars
- P(h);::QAB1(F),XB(i)
- Q(b);N_GUARD::R(B),XP(c)
- R(g);::B(G),XB(i)
- Refutation
- R(j);
- Try
- Actual
- S(D);
- Threat
- QAB1(F),XB(i)
- Vars
- K(e);P-FLIGHT,P_PINR(C),P_SPINB(i)::QAR1(F),XB(i)
- Q(b);N_GUARD::R(B),XP(c)
- R(j);SBLOCK::B(G)
- B(i);::B(G)
- B(i);S_CUTR(g)::QAR1(F),XP(f)
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).