MESON Chess Problem Database
Problem Display
PID: 30453 (3B4/b6b/q1pPp3/2k2N1Q/2N4R/PB6/1p3K2/2R5 w - - 0 1)
Hermanson, Halvar
2nd HM., Nederlandsche JT, 1951
#2
10 + 7
| 3105 | FIDE Album (1945-1955) | 1964 |
SOLUTION
- SOUND
- Sets
- 1...Kb5+
- 2.Sd4#
- 1...Kd5+
- 2.Sfe3#
- 1...Kb5+
- Tries
- 1.Sxb2+?
- 1...Kb5+
- 2.Sd4#
- 1...Qc4!
- 1...Kb5+
- 1.Sfe3+?
- 1...e5
- 2.Qxe5#
- 1...Bf5!
- 1...e5
- 1.Sg3+?
- 1...e5
- 2.Qxe5#
- 1...Bf5!
- 1...e5
- 1.Sd4+?
- 1...e5
- 2.Qxe5#
- 1...Bf5!
- 1...e5
- 1.Sh6+?
- 1...e5
- 2.Qxe5#
- 1...Bf5!
- 1...e5
- 1.Se7+?
- 1...e5
- 2.Qxe5#
- 1...Bf5!
- 1...e5
- 1.Sg7+?
- 1...e5
- 2.Qxe5#
- 1...Bf5!
- 1...e5
- 1.Sxb2+?
- Keys
- 1.Qe2!
- threat
- 2.Qe5#
- 1...Kb5+
- 2.Sce3#
- 1...Kd5+
- 2.Sb6#
- 1...Qxa3
- 2.Sxb2#
- 1...e5
- 2.Qxe5#
- threat
- 1.Qe2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- K(b);CHECK,P-FLIGHT::QAR(H)+S(G),DCHECK
- Tries
- Try
- S(E);CHECK,XP(a)
- Vars
- K(b);CHECK,P-FLIGHT::QAR(H)+S(G),DCHECK
- Refutation
- Q(c);P_SPINQ(c)
- Try
- S(G);CHECK
- Vars
- P(e);P_SPINP(e)::QAR2(H),XP(e)
- Refutation
- B(g);P_SPINB(g)
- Try
- S(G);CHECK
- Vars
- P(e);P_SPINP(e)::QAR2(H),XP(e)
- Refutation
- B(g);P_SPINB(g)
- Try
- S(G);CHECK
- Vars
- P(e);P_SPINP(e)::QAR2(H),XP(e)
- Refutation
- B(g);P_SPINB(g)
- Try
- S(G);CHECK
- Vars
- P(e);P_SPINP(e)::QAR2(H),XP(e)
- Refutation
- B(g);P_SPINB(g)
- Try
- S(G);CHECK
- Vars
- P(e);P_SPINP(e)::QAR2(H),XP(e)
- Refutation
- B(g);P_SPINB(g)
- Try
- S(G);CHECK
- Vars
- P(e);P_SPINP(e)::QAR2(H),XP(e)
- Refutation
- B(g);P_SPINB(g)
- Try
- Actual
- Q(H);
- Threat
- QAR2(H)
- Vars
- K(b);CHECK,P-FLIGHT::QAB(H)+S(E)
- K(b);CHECK,P-FLIGHT::B(D)+S(E),DCHECK
- Q(c);N_GUARD,XP(C)::R(A)+S(E),XP(a)
- P(e);::QAR2(H),XP(e)
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).