MESON Chess Problem Database
Problem Display
PID: 3323 (7B/RK6/3N4/3P1P1B/4P3/1PrQ4/1kpp2R1/br1n4 w - - 0 1)
Harley, Brian
The Observer, 1932
(First published on Wed Aug 24 1932)
#3
11 + 7
| 55 | The Observer | 1941 |
| 15290 | Harley Scrapbook | 2014 |
| 15239 | Valois Notebooks | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Kc1
- 2.Qxd2+
- 2...Kb2
- 3.Qxc2#
- 2...Kb2
- 2.Qxd2+
- 1...Kxb3
- 2.Qb5#
- 1...Rc1
- 2.Qa6
- threat
- 3.Qa2#
- 2...Kb1
- 3.Qxa1#
- 3.Qa2#
- 2...Kxb3
- 3.Qb5#
- 3.Qa3#
- 3.Qb6#
- 2...Rb1
- 3.Qa3#
- threat
- 2.Qa6
- 1...Sf2
- 2.Bxc3+
- 2...Kc1
- 3.Qxd2#
- 2...Kxb3
- 3.Qc4#
- 2...Kc1
- 2.Bxc3+
- 1...Se3
- 2.Qxc3+
- 2...Kc1
- 3.Qxd2#
- 2...Kc1
- 2.Qxc3+
- 1...c1Q
- 2.Bxd1
- threat
- 3.Sc4#
- 2...Qxd1
- 3.Qxc3#
- 2...Qc2
- 3.Qxc2#
- threat
- 2.Bxd1
- 1...c1S
- 2.Rxd2+
- 2...Kxb3
- 3.Qb5#
- 2...Kxb3
- 2.Rxd2+
- 1...c1R
- 2.Bxd1
- threat
- 3.Sc4#
- 2...Rxd1
- 3.Qxc3#
- 2...Rc2
- 3.Qxc2#
- threat
- 2.Rxd2+
- 2...Kxb3
- 3.Qb5#
- 2...Rc2
- 3.Qxc2#
- 2...Kxb3
- 2.Bxd1
- 1...Kc1
- Tries
- 1.Kb6?
- 1...Kc1
- 2.Qxd2+
- 2...Kb2
- 3.Qxc2#
- 2...Kb2
- 2.Qxd2+
- 1...c1Q
- 2.Bxd1
- threat
- 3.Sc4#
- 2...Qxd1
- 3.Qxc3#
- 2...Qc2
- 3.Qxc2#
- threat
- 2.Bxd1
- 1...c1S
- 2.Rxd2+
- 2...Kxb3
- 3.Qb5#
- 2...Kxb3
- 2.Rxd2+
- 1...c1R
- 2.Bxd1
- threat
- 3.Sc4#
- 2...Rxd1
- 3.Qxc3#
- 2...Rc2
- 3.Qxc2#
- threat
- 2.Rxd2+
- 2...Kxb3
- 3.Qb5#
- 2...Rc2
- 3.Qxc2#
- 2...Kxb3
- 2.Bxd1
- 1...Rc1
- 2.Qa6
- threat
- 3.Qa2#
- 2...Kb1
- 3.Qxa1#
- 3.Qa2#
- 2...Kxb3
- 3.Qb5#
- 3.Qa3#
- 2...Rb1
- 3.Qa3#
- threat
- 2.Qa6
- 1...Sf2
- 2.Bxc3+
- 2...Kc1
- 3.Qxd2#
- 2...Kxb3
- 3.Qc4#
- 2...Kc1
- 2.Bxc3+
- 1...Se3
- 2.Qxc3+
- 2...Kc1
- 3.Qxd2#
- 2...Kc1
- 2.Qxc3+
- 1...c1B!
- 1...Kc1
- 1.Kb8?
- 1...Kc1
- 2.Qxd2+
- 2...Kb2
- 3.Qxc2#
- 2...Kb2
- 2.Qxd2+
- 1...c1Q
- 2.Bxd1
- threat
- 3.Sc4#
- 2...Qxd1
- 3.Qxc3#
- 2...Qc2
- 3.Qxc2#
- threat
- 2.Bxd1
- 1...c1S
- 2.Rxd2+
- 2...Kxb3
- 3.Qb5#
- 2...Kxb3
- 2.Rxd2+
- 1...c1R
- 2.Bxd1
- threat
- 3.Sc4#
- 2...Rxd1
- 3.Qxc3#
- 2...Rc2
- 3.Qxc2#
- threat
- 2.Rxd2+
- 2...Kxb3
- 3.Qb5#
- 2...Rc2
- 3.Qxc2#
- 2...Kxb3
- 2.Bxd1
- 1...Rc1
- 2.Qa6
- threat
- 3.Qa2#
- 2...Kb1
- 3.Qxa1#
- 3.Qa2#
- 2...Kxb3
- 3.Rb7#
- 3.Qb5#
- 3.Qb7#
- 3.Qa3#
- 3.Qb6#
- 2...Rb1
- 3.Qa3#
- threat
- 2.Qa6
- 1...Sf2
- 2.Bxc3+
- 2...Kc1
- 3.Qxd2#
- 2...Kxb3
- 3.Qc4#
- 2...Kc1
- 2.Bxc3+
- 1...Se3
- 2.Qxc3+
- 2...Kc1
- 3.Qxd2#
- 2...Kc1
- 2.Qxc3+
- 1...c1B!
- 1...Kc1
- 1.Sc4+?
- 1...Kc1
- 2.Qxd2#
- 1...Kxb3!
- 1...Kc1
- 1.Sf7?
- 1...Kc1
- 2.Qxd2+
- 2...Kb2
- 3.Qxc2#
- 2...Kb2
- 2.Qxd2+
- 1...c1Q
- 2.Bxd1
- 2...Qxd1
- 3.Qxc3#
- 2...Qc2
- 3.Qxc2#
- 2...Qxd1
- 2.Bxd1
- 1...c1S
- 2.Rxd2+
- 2...Kxb3
- 3.Qb5#
- 2...Kxb3
- 2.Rxd2+
- 1...c1B
- 2.Rg6
- 2...Kxb3
- 3.Rb6#
- 2...Sf2
- 3.Qxc3#
- 2...Se3
- 3.Qxc3#
- 2...Kxb3
- 2.Rg6
- 1...c1R
- 2.Bxd1
- 2...Rxd1
- 3.Qxc3#
- 2...Rc2
- 3.Qxc2#
- 2...Rxd1
- 2.Rxd2+
- 2...Kxb3
- 3.Qb5#
- 2...Rc2
- 3.Qxc2#
- 2...Kxb3
- 2.Bxd1
- 1...Rc1
- 2.Qa6
- threat
- 3.Qa2#
- 2...Kb1
- 3.Qxa1#
- 3.Qa2#
- 2...Kxb3
- 3.Qb5#
- 2...Rb1
- 3.Qa3#
- threat
- 2.Qa6
- 1...Se3
- 2.Qxc3+
- 2...Kc1
- 3.Qxd2#
- 2...Kc1
- 2.Qxc3+
- 1...Sf2!
- 1...Kc1
- 1.Sc8?
- 1...Kc1
- 2.Qxd2+
- 2...Kb2
- 3.Qxc2#
- 2...Kb2
- 2.Qxd2+
- 1...c1Q
- 2.Bxd1
- 2...Qxd1
- 3.Qxc3#
- 2...Qc2
- 3.Qxc2#
- 2...Qxd1
- 2.Bxd1
- 1...c1S
- 2.Rxd2+
- 2...Kxb3
- 3.Qb5#
- 2...Kxb3
- 2.Rxd2+
- 1...c1B
- 2.Rg6
- 2...Kxb3
- 3.Rb6#
- 2...Sf2
- 3.Qxc3#
- 2...Se3
- 3.Qxc3#
- 2...Kxb3
- 2.Rg6
- 1...c1R
- 2.Bxd1
- 2...Rxd1
- 3.Qxc3#
- 2...Rc2
- 3.Qxc2#
- 2...Rxd1
- 2.Rxd2+
- 2...Kxb3
- 3.Qb5#
- 2...Rc2
- 3.Qxc2#
- 2...Kxb3
- 2.Bxd1
- 1...Rc1
- 2.Qa6
- threat
- 3.Qa2#
- 2...Kb1
- 3.Qxa1#
- 3.Qa2#
- 2...Kxb3
- 3.Qb5#
- 2...Rb1
- 3.Qa3#
- threat
- 2.Qa6
- 1...Se3
- 2.Qxc3+
- 2...Kc1
- 3.Qxd2#
- 2...Kc1
- 2.Qxc3+
- 1...Sf2!
- 1...Kc1
- 1.Se8?
- 1...Kc1
- 2.Qxd2+
- 2...Kb2
- 3.Qxc2#
- 2...Kb2
- 2.Qxd2+
- 1...c1Q
- 2.Bxd1
- 2...Qxd1
- 3.Qxc3#
- 2...Qc2
- 3.Qxc2#
- 2...Qxd1
- 2.Bxd1
- 1...c1S
- 2.Rxd2+
- 2...Kxb3
- 3.Qb5#
- 2...Kxb3
- 2.Rxd2+
- 1...c1B
- 2.Rg6
- 2...Kxb3
- 3.Rb6#
- 2...Sf2
- 3.Qxc3#
- 2...Se3
- 3.Qxc3#
- 2...Kxb3
- 2.Rg6
- 1...c1R
- 2.Bxd1
- 2...Rxd1
- 3.Qxc3#
- 2...Rc2
- 3.Qxc2#
- 2...Rxd1
- 2.Rxd2+
- 2...Kxb3
- 3.Qb5#
- 2...Rc2
- 3.Qxc2#
- 2...Kxb3
- 2.Bxd1
- 1...Rc1
- 2.Qa6
- threat
- 3.Qa2#
- 2...Kb1
- 3.Qxa1#
- 3.Qa2#
- 2...Kxb3
- 3.Qb5#
- 2...Rb1
- 3.Qa3#
- threat
- 2.Qa6
- 1...Se3
- 2.Qxc3+
- 2...Kc1
- 3.Qxd2#
- 2...Kc1
- 2.Qxc3+
- 1...Sf2!
- 1...Kc1
- 1.Bxd1?
- threat
- 2.Qxc2#
- 1...Kc1
- 2.Qxd2+
- 2...Kb2
- 3.Qxc2#
- 2...Kb2
- 2.Qxd2+
- 1...Rxd1
- 2.Bxc3+
- 2...Kb1
- 3.Rxa1#
- 2...Kc1
- 3.Rxa1#
- 2...Kxb3
- 3.Qc4#
- 2...Kb1
- 2.Qxc3+
- 2...Kb1
- 3.Rxa1#
- 3.Qxa1#
- 2...Kc1
- 3.Rxa1#
- 3.Qxa1#
- 2...Kb1
- 2.Bxc3+
- 1...Rc1
- 2.Bxc3+
- 2...Kb1
- 3.Rxa1#
- 2...Kxb3
- 3.Qc4#
- 2...Kb1
- 2.Qxc3+
- 2...Kb1
- 3.Rxa1#
- 3.Qxa1#
- 2...Kb1
- 2.Bxc3+
- 1...cxd1S!
- threat
- 1.Bf3?
- 1...Kc1
- 2.Qxd2+
- 2...Kb2
- 3.Qxc2#
- 2...Kb2
- 2.Qxd2+
- 1...c1Q
- 2.Bxd1
- threat
- 3.Sc4#
- 2...Qxd1
- 3.Qxc3#
- 2...Qc2
- 3.Qxc2#
- threat
- 2.Bxd1
- 1...c1S
- 2.Rxd2+
- 2...Kxb3
- 3.Qb5#
- 2...Kxb3
- 2.Rxd2+
- 1...c1R
- 2.Bxd1
- threat
- 3.Sc4#
- 2...Rxd1
- 3.Qxc3#
- 2...Rc2
- 3.Qxc2#
- threat
- 2.Rxd2+
- 2...Kxb3
- 3.Qb5#
- 2...Rc2
- 3.Qxc2#
- 2...Kxb3
- 2.Bxd1
- 1...Sf2
- 2.Bxc3+
- 2...Kc1
- 3.Qxd2#
- 2...Kxb3
- 3.Qc4#
- 2...Kc1
- 2.Bxc3+
- 1...Rc1
- 2.Qa6
- threat
- 3.Qa2#
- 2...Kb1
- 3.Qxa1#
- 3.Qa2#
- 2...Kxb3
- 3.Qb5#
- 3.Qa3#
- 3.Qb6#
- 2...Rb1
- 3.Qa3#
- threat
- 2.Qa6
- 1...Se3
- 2.Qxc3+
- 2...Kc1
- 3.Qxd2#
- 2...Kc1
- 2.Qxc3+
- 1...c1B!
- 1...Kc1
- 1.Bg4?
- 1...Kc1
- 2.Qxd2+
- 2...Kb2
- 3.Qxc2#
- 2...Kb2
- 2.Qxd2+
- 1...c1Q
- 2.Bxd1
- threat
- 3.Sc4#
- 2...Qxd1
- 3.Qxc3#
- 2...Qc2
- 3.Qxc2#
- threat
- 2.Bxd1
- 1...c1S
- 2.Rxd2+
- 2...Kxb3
- 3.Qb5#
- 2...Kxb3
- 2.Rxd2+
- 1...c1R
- 2.Bxd1
- threat
- 3.Sc4#
- 2...Rxd1
- 3.Qxc3#
- 2...Rc2
- 3.Qxc2#
- threat
- 2.Rxd2+
- 2...Kxb3
- 3.Qb5#
- 2...Rc2
- 3.Qxc2#
- 2...Kxb3
- 2.Bxd1
- 1...Rc1
- 2.Qa6
- threat
- 3.Qa2#
- 2...Kb1
- 3.Qxa1#
- 3.Qa2#
- 2...Kxb3
- 3.Qb5#
- 3.Qa3#
- 3.Qb6#
- 2...Rb1
- 3.Qa3#
- threat
- 2.Qa6
- 1...Sf2
- 2.Bxc3+
- 2...Kc1
- 3.Qxd2#
- 2...Kxb3
- 3.Qc4#
- 2...Kc1
- 2.Bxc3+
- 1...Se3
- 2.Qxc3+
- 2...Kc1
- 3.Qxd2#
- 2...Kc1
- 2.Qxc3+
- 1...c1B!
- 1...Kc1
- 1.Bxc3+?
- 1...Kc1
- 2.Qxd2#
- 1...Kxb3
- 2.Qc4#
- 1...Sxc3!
- 1...Kc1
- 1.Bd4?
- 1...Kc1
- 2.Qxd2+
- 2...Kb2
- 3.Qxc2#
- 2...Kb2
- 2.Qxd2+
- 1...c1Q
- 2.Bxd1
- threat
- 3.Sc4#
- 2...Qxd1
- 3.Qxc3#
- 2...Qc2
- 3.Qxc2#
- threat
- 2.Bxd1
- 1...c1S
- 2.Rxd2+
- 2...Kxb3
- 3.Qb5#
- 2...Kxb3
- 2.Rxd2+
- 1...c1R
- 2.Bxd1
- threat
- 3.Sc4#
- 2...Rxd1
- 3.Qxc3#
- 2...Rc2
- 3.Qxc2#
- threat
- 2.Rxd2+
- 2...Kxb3
- 3.Qb5#
- 2...Rc2
- 3.Qxc2#
- 2...Kxb3
- 2.Bxd1
- 1...Rc1
- 2.Qa6
- threat
- 3.Qa2#
- 2...Kb1
- 3.Qxa1#
- 3.Qa2#
- 2...Kxb3
- 3.Qb5#
- 3.Qa3#
- 3.Qb6#
- 2...Rb1
- 3.Qa3#
- threat
- 2.Qa6
- 1...Sf2
- 2.Bxc3+
- 2...Kc1
- 3.Qxd2#
- 2...Kxb3
- 3.Qc4#
- 2...Kc1
- 2.Bxc3+
- 1...Se3
- 2.Qxc3+
- 2...Kc1
- 3.Qxd2#
- 2...Kc1
- 2.Qxc3+
- 1...c1B!
- 1...Kc1
- 1.Be5?
- 1...Kc1
- 2.Qxd2+
- 2...Kb2
- 3.Qxc2#
- 2...Kb2
- 2.Qxd2+
- 1...c1Q
- 2.Bxd1
- threat
- 3.Sc4#
- 2...Qxd1
- 3.Qxc3#
- 2...Qc2
- 3.Qxc2#
- threat
- 2.Bxd1
- 1...c1S
- 2.Rxd2+
- 2...Kxb3
- 3.Qb5#
- 2...Kxb3
- 2.Rxd2+
- 1...c1R
- 2.Bxd1
- threat
- 3.Sc4#
- 2...Rxd1
- 3.Qxc3#
- 2...Rc2
- 3.Qxc2#
- threat
- 2.Rxd2+
- 2...Kxb3
- 3.Qb5#
- 2...Rc2
- 3.Qxc2#
- 2...Kxb3
- 2.Bxd1
- 1...Rc1
- 2.Qa6
- threat
- 3.Qa2#
- 2...Kb1
- 3.Qxa1#
- 3.Qa2#
- 2...Kxb3
- 3.Qb5#
- 3.Qa3#
- 3.Qb6#
- 2...Rb1
- 3.Qa3#
- threat
- 2.Qa6
- 1...Sf2
- 2.Bxc3+
- 2...Kc1
- 3.Qxd2#
- 2...Kxb3
- 3.Qc4#
- 2...Kc1
- 2.Bxc3+
- 1...Se3
- 2.Qxc3+
- 2...Kc1
- 3.Qxd2#
- 2...Kc1
- 2.Qxc3+
- 1...c1B!
- 1...Kc1
- 1.Bf6?
- 1...Kc1
- 2.Qxd2+
- 2...Kb2
- 3.Qxc2#
- 2...Kb2
- 2.Qxd2+
- 1...c1Q
- 2.Bxd1
- threat
- 3.Sc4#
- 2...Qxd1
- 3.Qxc3#
- 2...Qc2
- 3.Qxc2#
- threat
- 2.Bxd1
- 1...c1S
- 2.Rxd2+
- 2...Kxb3
- 3.Qb5#
- 2...Kxb3
- 2.Rxd2+
- 1...c1R
- 2.Bxd1
- threat
- 3.Sc4#
- 2...Rxd1
- 3.Qxc3#
- 2...Rc2
- 3.Qxc2#
- threat
- 2.Rxd2+
- 2...Kxb3
- 3.Qb5#
- 2...Rc2
- 3.Qxc2#
- 2...Kxb3
- 2.Bxd1
- 1...Rc1
- 2.Qa6
- threat
- 3.Qa2#
- 2...Kb1
- 3.Qxa1#
- 3.Qa2#
- 2...Kxb3
- 3.Qb5#
- 3.Qa3#
- 3.Qb6#
- 2...Rb1
- 3.Qa3#
- threat
- 2.Qa6
- 1...Sf2
- 2.Bxc3+
- 2...Kc1
- 3.Qxd2#
- 2...Kxb3
- 3.Qc4#
- 2...Kc1
- 2.Bxc3+
- 1...Se3
- 2.Qxc3+
- 2...Kc1
- 3.Qxd2#
- 2...Kc1
- 2.Qxc3+
- 1...c1B!
- 1...Kc1
- 1.Bg7?
- 1...Kc1
- 2.Qxd2+
- 2...Kb2
- 3.Qxc2#
- 2...Kb2
- 2.Qxd2+
- 1...c1Q
- 2.Bxd1
- threat
- 3.Sc4#
- 2...Qxd1
- 3.Qxc3#
- 2...Qc2
- 3.Qxc2#
- threat
- 2.Bxd1
- 1...c1S
- 2.Rxd2+
- 2...Kxb3
- 3.Qb5#
- 2...Kxb3
- 2.Rxd2+
- 1...c1R
- 2.Bxd1
- threat
- 3.Sc4#
- 2...Rxd1
- 3.Qxc3#
- 2...Rc2
- 3.Qxc2#
- threat
- 2.Rxd2+
- 2...Kxb3
- 3.Qb5#
- 2...Rc2
- 3.Qxc2#
- 2...Kxb3
- 2.Bxd1
- 1...Rc1
- 2.Qa6
- threat
- 3.Qa2#
- 2...Kb1
- 3.Qxa1#
- 3.Qa2#
- 2...Kxb3
- 3.Qb5#
- 3.Qa3#
- 3.Qb6#
- 2...Rb1
- 3.Qa3#
- threat
- 2.Qa6
- 1...Sf2
- 2.Bxc3+
- 2...Kc1
- 3.Qxd2#
- 2...Kxb3
- 3.Qc4#
- 2...Kc1
- 2.Bxc3+
- 1...Se3
- 2.Qxc3+
- 2...Kc1
- 3.Qxd2#
- 2...Kc1
- 2.Qxc3+
- 1...c1B!
- 1...Kc1
- 1.Rxd2?
- threat
- 2.Qxc2#
- 1...Kc1
- 2.Rxc2+
- 2...Rxc2
- 3.Qxd1#
- 2...Rxc2
- 2.Qxc2+
- 2...Rxc2
- 3.Rxd1#
- 2...Rxc2
- 2.Rxc2+
- 1...Rc1
- 2.Qa6
- threat
- 3.Qa2#
- 2...Kb1
- 3.Qxa1#
- 3.Qa2#
- 2...Kxb3
- 3.Qb5#
- 3.Qa3#
- 3.Qb6#
- 2...Rb1
- 3.Qa3#
- threat
- 2.Qa6
- 1...Se3!
- threat
- 1.Rf2?
- 1...Kc1
- 2.Qxd2+
- 2...Kb2
- 3.Qxc2#
- 2...Kb2
- 2.Qxd2+
- 1...Sxf2
- 2.Bxc3+
- 2...Kc1
- 3.Qxd2#
- 2...Kxb3
- 3.Qc4#
- 2...Kc1
- 2.Bxc3+
- 1...c1Q
- 2.Bxd1
- threat
- 3.Sc4#
- 2...Qxd1
- 3.Qxc3#
- 2...Qc2
- 3.Qxc2#
- threat
- 2.Bxd1
- 1...c1S
- 2.Rxd2+
- 2...Kxb3
- 3.Qb5#
- 2...Kxb3
- 2.Rxd2+
- 1...c1R
- 2.Bxd1
- threat
- 3.Sc4#
- 2...Rxd1
- 3.Qxc3#
- 2...Rc2
- 3.Qxc2#
- threat
- 2.Rxd2+
- 2...Kxb3
- 3.Qb5#
- 2...Rc2
- 3.Qxc2#
- 2...Kxb3
- 2.Bxd1
- 1...Rc1
- 2.Qa6
- threat
- 3.Qa2#
- 2...Kb1
- 3.Qxa1#
- 3.Qa2#
- 2...Kxb3
- 3.Qb5#
- 3.Qa3#
- 3.Qb6#
- 2...Rb1
- 3.Qa3#
- threat
- 2.Qa6
- 1...Se3
- 2.Qxc3+
- 2...Kc1
- 3.Qxd2#
- 2...Kc1
- 2.Qxc3+
- 1...c1B!
- 1...Kc1
- 1.Rh2?
- 1...Kc1
- 2.Qxd2+
- 2...Kb2
- 3.Qxc2#
- 2...Kb2
- 2.Qxd2+
- 1...c1Q
- 2.Bxd1
- threat
- 3.Sc4#
- 2...Qxd1
- 3.Qxc3#
- 2...Qc2
- 3.Qxc2#
- threat
- 2.Bxd1
- 1...c1S
- 2.Rxd2+
- 2...Kxb3
- 3.Qb5#
- 2...Kxb3
- 2.Rxd2+
- 1...c1R
- 2.Bxd1
- threat
- 3.Sc4#
- 2...Rxd1
- 3.Qxc3#
- 2...Rc2
- 3.Qxc2#
- threat
- 2.Rxd2+
- 2...Kxb3
- 3.Qb5#
- 2...Rc2
- 3.Qxc2#
- 2...Kxb3
- 2.Bxd1
- 1...Rc1
- 2.Qa6
- threat
- 3.Qa2#
- 2...Kb1
- 3.Qxa1#
- 3.Qa2#
- 2...Kxb3
- 3.Qb5#
- 3.Qa3#
- 3.Qb6#
- 2...Rb1
- 3.Qa3#
- threat
- 2.Qa6
- 1...Sf2
- 2.Bxc3+
- 2...Kc1
- 3.Qxd2#
- 2...Kxb3
- 3.Qc4#
- 2...Kc1
- 2.Bxc3+
- 1...Se3
- 2.Qxc3+
- 2...Kc1
- 3.Qxd2#
- 2...Kc1
- 2.Qxc3+
- 1...c1B!
- 1...Kc1
- 1.Ra4?
- 1...Kc1
- 2.Qxd2+
- 2...Kb2
- 3.Qxc2#
- 2...Kb2
- 2.Qxd2+
- 1...c1Q
- 2.Bxd1
- threat
- 3.Sc4#
- 2...Qxd1
- 3.Qxc3#
- 2...Qc2
- 3.Qxc2#
- threat
- 2.Bxd1
- 1...c1S
- 2.Sc4+
- 2...Kxb3
- 3.Bxd1#
- 2...Kxb3
- 2.Rxd2+
- 2...Kxb3
- 3.Bxd1#
- 3.Qb5#
- 2...Kxb3
- 2.Sc4+
- 1...c1B
- 2.Sc4+
- 2...Kxb3
- 3.Bxd1#
- 2...Kxb3
- 2.Sc4+
- 1...c1R
- 2.Bxd1
- threat
- 3.Sc4#
- 2...Rxd1
- 3.Qxc3#
- 2...Rc2
- 3.Qxc2#
- threat
- 2.Rxd2+
- 2...Kxb3
- 3.Qb5#
- 2...Rc2
- 3.Qxc2#
- 2...Kxb3
- 2.Qxd2+
- 2...Kxb3
- 3.Qa2#
- 2...Rc2
- 3.Qxc2#
- 2...Kxb3
- 2.Bxd1
- 1...Sf2
- 2.Bxc3+
- 2...Kc1
- 3.Qxd2#
- 2...Kxb3
- 3.Qc4#
- 2...Kc1
- 2.Bxc3+
- 1...Se3
- 2.Qxc3+
- 2...Kc1
- 3.Qxd2#
- 2...Kc1
- 2.Qxc3+
- 1...Rc1!
- 1...Kc1
- 1.Ra8?
- 1...Kc1
- 2.Qxd2+
- 2...Kb2
- 3.Qxc2#
- 2...Kb2
- 2.Qxd2+
- 1...c1Q
- 2.Bxd1
- threat
- 3.Sc4#
- 2...Qxd1
- 3.Qxc3#
- 2...Qc2
- 3.Qxc2#
- threat
- 2.Bxd1
- 1...c1S
- 2.Rxd2+
- 2...Kxb3
- 3.Qb5#
- 2...Kxb3
- 2.Rxd2+
- 1...c1R
- 2.Bxd1
- threat
- 3.Sc4#
- 2...Rxd1
- 3.Qxc3#
- 2...Rc2
- 3.Qxc2#
- threat
- 2.Rxd2+
- 2...Kxb3
- 3.Qb5#
- 2...Rc2
- 3.Qxc2#
- 2...Kxb3
- 2.Bxd1
- 1...Rc1
- 2.Qa6
- threat
- 3.Qa2#
- 2...Kb1
- 3.Qxa1#
- 3.Qa2#
- 2...Kxb3
- 3.Qb5#
- 3.Qa3#
- 3.Qb6#
- 2...Rb1
- 3.Qa3#
- threat
- 2.Qa6
- 1...Sf2
- 2.Bxc3+
- 2...Kc1
- 3.Qxd2#
- 2...Kxb3
- 3.Qc4#
- 2...Kc1
- 2.Bxc3+
- 1...Se3
- 2.Qxc3+
- 2...Kc1
- 3.Qxd2#
- 2...Kc1
- 2.Qxc3+
- 1...c1B!
- 1...Kc1
- 1.Qa6?
- threat
- 2.Qa3#
- 1...c1S
- 2.Bxd1
- threat
- 3.Sc4#
- 3.Rxd2#
- 3.Qa3#
- threat
- 2.Rxd2+
- 2...Kxb3
- 3.Qb5#
- 3.Qa3#
- 3.Qa4#
- 3.Qb6#
- 2...Kxb3
- 2.Bxd1
- 1...Kc1!
- threat
- 1.Qxc3+?
- 1...Kc1
- 2.Qxd2#
- 1...Sxc3!
- 1...Kc1
- 1.Kb6?
- Keys
- 1.Ka8!
- 1...Kc1
- 2.Qxd2+
- 2...Kb2
- 3.Qxc2#
- 2...Kb2
- 2.Qxd2+
- 1...c1Q
- 2.Bxd1
- threat
- 3.Sc4#
- 2...Qxd1
- 3.Qxc3#
- 2...Qc2
- 3.Qxc2#
- threat
- 2.Bxd1
- 1...c1S
- 2.Rxd2+
- 2...Kxb3
- 3.Qb5#
- 2...Kxb3
- 2.Rxd2+
- 1...c1B
- 2.Rg8
- 2...Kxb3
- 3.Rb8#
- 2...Sf2
- 3.Qxc3#
- 2...Se3
- 3.Qxc3#
- 2...Kxb3
- 2.Rg8
- 1...c1R
- 2.Bxd1
- threat
- 3.Sc4#
- 2...Rxd1
- 3.Qxc3#
- 2...Rc2
- 3.Qxc2#
- threat
- 2.Rxd2+
- 2...Kxb3
- 3.Qb5#
- 2...Rc2
- 3.Qxc2#
- 2...Kxb3
- 2.Bxd1
- 1...Rc1
- 2.Qa6
- threat
- 3.Qa2#
- 2...Kb1
- 3.Qxa1#
- 3.Qa2#
- 2...Kxb3
- 3.Rb7#
- 3.Qb5#
- 3.Qb7#
- 3.Qa3#
- 3.Qb6#
- 2...Rb1
- 3.Qa3#
- threat
- 2.Qa6
- 1...Sf2
- 2.Bxc3+
- 2...Kc1
- 3.Qxd2#
- 2...Kxb3
- 3.Qc4#
- 2...Kc1
- 2.Bxc3+
- 1...Se3
- 2.Qxc3+
- 2...Kc1
- 3.Qxd2#
- 2...Kc1
- 2.Qxc3+
- 1...Kc1
- 1.Ka8!
This is a version
FEATURES
NOT CLASSIFIED
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).