MESON Chess Problem Database
Problem Display
PID: 17492 (K1b5/1p3q2/1N3p1B/1Q6/3P1Rn1/p2rk3/5R2/8 w - - 0 1)
Hassberg, Eric Manfred
1st Sp. Prize, Chess Correspondent, 1947
#2
7 + 8
| 3105 | FIDE Album (1945-1955) | 1964 |
SOLUTION
- SOUND
- Sets
- 1...Qc4
- 2.Sxc4#
- 1...Qd5
- 2.Sxd5#
- 1...Qh5
- 2.Sc4#
- 1...Qg6
- 2.Sc4#
- 2.Sd5#
- 1...Qe8
- 2.Sc4#
- 2.Sd5#
- 1...Qc7
- 2.Sd5#
- 1...Qd7
- 2.Sc4#
- 1...Qe7
- 2.Sc4#
- 2.Sd5#
- 1...Qg7
- 2.Sc4#
- 2.Sd5#
- 1...Qh7
- 2.Sc4#
- 2.Sd5#
- 1...Qf8
- 2.Sc4#
- 2.Sd5#
- 1...Rd1
- 2.Re2#
- 2.Qe2#
- 1...Rd2
- 2.R2f3#
- 1...Rb3
- 2.Re2#
- 2.Qe2#
- 1...Rc3
- 2.Re2#
- 2.Qe2#
- 1...Rxd4
- 2.Re2#
- 2.Qe2#
- 1...Qc4
- Tries
- 1.R4f3+?
- 1...Ke4
- 2.Qxd3#
- 1...Kxd4!
- 1...Ke4
- 1.Qe8+?
- 1...Qe6
- 2.Sc4#
- 2.Sd5#
- 1...Qxe8
- 2.Sc4#
- 2.Sd5#
- 1...Qe7
- 2.Sc4#
- 2.Sd5#
- 1...Be6
- 2.Sc4#
- 2.Sd5#
- 1...Se5!
- 1...Qe6
- 1.Qb1?
- threat
- 2.Qe1#
- 1...Rxd4
- 2.R4f3#
- 1...Rd1
- 2.Qe4#
- 1...Rd2
- 2.Qe4#
- 1...Rb3
- 2.Qe4#
- 1...Rc3
- 2.Qe4#
- 1...Qa2!
- threat
- 1.Qb2?
- threat
- 2.Re2#
- 2.R2f3#
- 2.Rxg4#
- 2.Qe2#
- 1...Rxd4
- 2.R2f3#
- 2.Qxd4#
- 2.Qe2#
- 1...Sxf2
- 2.Qxf2#
- 1...Sxh6
- 2.R2f3#
- 2.Qe2#
- 1...Rd1
- 2.R2f3#
- 2.Qe2#
- 1...Rd2
- 2.Qxd2#
- 1...Rb3
- 2.R2f3#
- 2.Qd2#
- 2.Qe2#
- 1...Rc3
- 2.R2f3#
- 2.Qxc3#
- 2.Qd2#
- 2.Qe2#
- 1...Qa2
- 2.Re2#
- 2.R2f3#
- 2.Rxg4#
- 1...Qd5
- 2.Sxd5#
- 2.Re2#
- 2.Qe2#
- 1...Qh5
- 2.Sc4#
- 2.Re2#
- 2.R2f3#
- 2.Qe2#
- 1...Qg6
- 2.Sc4#
- 2.Sd5#
- 2.Re2#
- 2.R2f3#
- 2.Qe2#
- 1...Qg8
- 2.Re2#
- 2.R2f3#
- 2.Qe2#
- 1...Qc7
- 2.Sd5#
- 2.Re2#
- 2.R2f3#
- 2.Qe2#
- 1...Qg7
- 2.Sc4#
- 2.Sd5#
- 2.Re2#
- 2.R2f3#
- 2.Qe2#
- 1...Qh7
- 2.Sc4#
- 2.Sd5#
- 2.Re2#
- 2.R2f3#
- 2.Qe2#
- 1...Qf8
- 2.Sc4#
- 2.Sd5#
- 2.Re2#
- 2.R2f3#
- 2.Qe2#
- 1...Sh2
- 2.Re2#
- 2.Rg4#
- 2.Rh4#
- 2.Qe2#
- 1...Se5
- 2.Re2#
- 2.Rg4#
- 2.Rh4#
- 2.Qe2#
- 1...f5
- 2.Re2#
- 2.R2f3#
- 2.Qe2#
- 1...axb2!
- threat
- 1.Qd5?
- threat
- 2.Sc4#
- 2.R4f3#
- 2.Qf3#
- 2.Qe4#
- 1...Qxd5
- 2.Sxd5#
- 1...Rxd4
- 2.R4f3#
- 2.Qf3#
- 2.Qxd4#
- 1...Rd1
- 2.R4f3#
- 2.Qf3#
- 2.Qe4#
- 1...Rd2
- 2.R4f3#
- 2.Qf3#
- 2.Qe4#
- 1...Rb3
- 2.R4f3#
- 2.Qf3#
- 2.Qe4#
- 1...Rc3
- 2.R4f3#
- 2.Qf3#
- 2.Qe4#
- 1...Qe6
- 2.Sc4#
- 2.R4f3#
- 2.Qf3#
- 1...Qg6
- 2.Sc4#
- 2.R4f3#
- 2.Qf3#
- 1...Qe8
- 2.Sc4#
- 2.R4f3#
- 2.Qf3#
- 1...Qc7
- 2.R4f3#
- 2.Qf3#
- 2.Qe4#
- 1...Qe7
- 2.Sc4#
- 2.R4f3#
- 2.Qf3#
- 1...Qh7
- 2.Sc4#
- 2.R4f3#
- 2.Qf3#
- 1...Bf5
- 2.Sc4#
- 2.R4f3#
- 2.Qf3#
- 1...Sh2
- 2.Sc4#
- 2.R4f3#
- 2.Rf5#
- 2.Rxf6#
- 2.Qe4#
- 1...Se5
- 2.R4f3#
- 2.Rf5#
- 2.Rxf6#
- 2.Qe4#
- 1...f5
- 2.Sc4#
- 2.R4f3#
- 2.Qf3#
- 1...Sxf2!
- threat
- 1.Qf5?
- threat
- 2.Re4#
- 2.Rxg4#
- 2.Qe4#
- 1...Rxd4
- 2.R4f3#
- 1...Sxf2
- 2.Re4#
- 1...Sxh6
- 2.Re4#
- 2.Qe4#
- 1...Qd5
- 2.Sxd5#
- 2.Re4#
- 2.Rxg4#
- 1...Qh5
- 2.Sc4#
- 2.Sd5#
- 2.Re4#
- 2.Qe4#
- 1...Qe6
- 2.Re4#
- 2.Rxg4#
- 1...Qg6
- 2.Sc4#
- 2.Sd5#
- 2.Re4#
- 1...Qe8
- 2.Sc4#
- 2.Sd5#
- 2.Re4#
- 2.Rxg4#
- 1...Qg8
- 2.Re4#
- 2.Qe4#
- 1...Qc7
- 2.Sd5#
- 2.Re4#
- 2.Qe4#
- 1...Qe7
- 2.Sc4#
- 2.Sd5#
- 2.Re4#
- 2.Rxg4#
- 1...Qg7
- 2.Sc4#
- 2.Sd5#
- 2.Re4#
- 2.Qe4#
- 1...Qh7
- 2.Sc4#
- 2.Sd5#
- 2.Re4#
- 1...Qf8
- 2.Sc4#
- 2.Sd5#
- 2.Re4#
- 2.Qe4#
- 1...Rd1
- 2.Rxg4#
- 2.Qe4#
- 1...Rd2
- 2.Rxg4#
- 2.Qe4#
- 1...Rb3
- 2.Rxg4#
- 2.Qe4#
- 1...Rc3
- 2.Rxg4#
- 2.Qe4#
- 1...Sh2
- 2.Re4#
- 2.Rg4#
- 2.Rh4#
- 2.Qe4#
- 1...Se5
- 2.Re4#
- 2.Rg4#
- 2.Rh4#
- 2.Qe4#
- 1...Bxf5!
- threat
- 1.R4f3+?
- Keys
- 1.Qh5!
- threat
- 2.Qh3#
- 1...Qxh5
- 2.Sc4#
- 1...Sxf2
- 2.Rh4#
- 1...Sxh6
- 2.Qe2#
- 2.Qf3#
- 1...Qd5
- 2.Sxd5#
- 1...Sh2
- 2.Re2#
- 2.Qe2#
- 1...Se5
- 2.Re2#
- 2.Qe2#
- threat
- 1.Qh5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 4
- Sets
- Q(g);N_GUARD::S(E),XQ(g)
- Q(g);N_GUARD::S(E)
- R(b);SBLOCK::R1(A)
- Tries
- Try
- R(C);CHECK
- Vars
- K(c);P-FLIGHT::QAB1(D),XR(b)
- Refutation
- K(c);S_FLIGHT,XP(B)
- Try
- Q(D);CHECK
- Refutation
- S(d);P_SPINS(d)
- Try
- Q(D);
- Threat
- QAR2(D)
- Vars
- R(b);SBLOCK,XP(B)::B(F)+R(C),DCHECK
- R(b);OGATE::QAR1(D)
- Refutation
- Q(g);
- Try
- Q(D);
- Threat
- DUALS(4)
- Vars
- S(d);OGATE,XR(A)::QAB1(D),XS(d)
- R(b);N_GUARD::QAB1(D),XR(b)
- Refutation
- P(a);XQ(D)
- Try
- Q(D);
- Threat
- DUALS(4)
- Vars
- Q(g);XQ(D)::S(E),XQ(g)
- Refutation
- S(d);XR(A)
- Try
- Q(D);
- Threat
- DUALS(3)
- Vars
- R(b);SBLOCK,XP(B)::B(F)+R(C),DCHECK
- S(d);XR(A)::B(F)+R(C),DCHECK
- Refutation
- B(h);XQ(D)
- Try
- Actual
- Q(D);
- Threat
- QAR(D)
- Vars
- Q(g);N_GUARD,XQ(D)::S(E)
- S(d);OGATE,SBLOCK,XR(A)::B(F)+R(C)
- Q(g);N_GUARD::S(E),XQ(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).