MESON Chess Problem Database
Problem Display
PID: 97939 (b4NB1/8/p6q/1r3R1p/1P1kp2R/1Q3P1K/1n3P1B/8 w - - 0 1)
Hermanson, Halvar
Problem (Zagreb), 1953
#2
10 + 8
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qc1
- 2.Se6#
- 1...Qd2
- 2.Se6#
- 1...Qe3
- 2.Se6#
- 2.Qxe3#
- 2.fxe3#
- 1...Qf4
- 2.Se6#
- 1...Qg5
- 2.Se6#
- 1...Qg7
- 2.Se6#
- 2.Qe3#
- 1...Qxf8
- 2.Qe3#
- 1...Qb6
- 2.Qe3#
- 1...Qc6
- 2.Qe3#
- 1...Qd6
- 2.Qe3#
- 1...Qe6
- 2.Sxe6#
- 1...Qf6
- 2.Qe3#
- 1...Qg6
- 2.Qe3#
- 1...Qh7
- 2.Se6#
- 2.Qe3#
- 1...Qh8
- 2.Se6#
- 2.Qe3#
- 1...Rd5
- 2.Rxe4#
- 1...Re5
- 2.Bxe5#
- 1...Rb6
- 2.Be5#
- 1...Rb7
- 2.Be5#
- 2.Rxe4#
- 2.Rd5#
- 1...Rb8
- 2.Be5#
- 1...Bd5
- 2.Be5#
- 1...Sd1
- 2.Qc4#
- 1...Sd3
- 2.Qc4#
- 1...Sa4
- 2.Qc4#
- 1...Sc4
- 2.Qxc4#
- 1...Qc1
- Tries
- 1.Bf4?
- threat
- 2.Qe3#
- 1...Qxf4
- 2.Se6#
- 1...Qe6
- 2.Sxe6#
- 2.Be3#
- 1...Bd5
- 2.Be5#
- 1...Sd1
- 2.Qc4#
- 1...Sd3
- 2.Qc4#
- 1...Sc4
- 2.Qxc4#
- 1...e3
- 2.Bxe3#
- 2.Be5#
- 2.Qxe3#
- 2.fxe3#
- 1...Rd5!
- threat
- 1.Bd5?
- threat
- 2.Be5#
- 2.Rxe4#
- 1...Rxd5
- 2.Rxe4#
- 1...Bxd5
- 2.Be5#
- 1...Qe3
- 2.Se6#
- 2.Be5#
- 2.Qxe3#
- 2.fxe3#
- 1...Qf4
- 2.Se6#
- 1...Qg7
- 2.Se6#
- 2.Rxe4#
- 2.Qe3#
- 1...Qd6
- 2.Rxe4#
- 2.Qe3#
- 1...Qe6
- 2.Sxe6#
- 2.Qe3#
- 1...Qf6
- 2.Rxe4#
- 2.Qe3#
- 1...Qh8
- 2.Se6#
- 2.Rxe4#
- 2.Qe3#
- 1...Sd3
- 2.Rxe4#
- 2.Qc4#
- 1...Sc4
- 2.Rxe4#
- 2.Qxc4#
- 1...Rxb4!
- threat
- 1.Rxb5?
- threat
- 2.Be5#
- 1...Qe6+
- 2.Sxe6#
- 1...Qf4
- 2.Se6#
- 1...Qg5
- 2.Se6#
- 1...Qg7
- 2.Se6#
- 2.Qe3#
- 1...Qd6
- 2.Qe3#
- 1...Qf6
- 2.Qe3#
- 1...Qh8
- 2.Se6#
- 2.Qe3#
- 1...Bd5
- 2.Rxd5#
- 1...Sd3
- 2.Qc4#
- 1...Sc4
- 2.Qxc4#
- 1...axb5!
- threat
- 1.Rc5?
- threat
- 2.Be5#
- 2.Qc3#
- 1...Qe6+
- 2.Sxe6#
- 1...Rxb4
- 2.Qc3#
- 1...Qc1
- 2.Se6#
- 2.Be5#
- 1...Qd2
- 2.Se6#
- 2.Be5#
- 1...Qe3
- 2.Se6#
- 2.Be5#
- 2.Qxe3#
- 2.fxe3#
- 1...Qf4
- 2.Se6#
- 2.Qc3#
- 1...Qg5
- 2.Se6#
- 2.Qc3#
- 1...Qg7
- 2.Se6#
- 2.Qc3#
- 2.Qe3#
- 1...Qd6
- 2.Qc3#
- 2.Qe3#
- 1...Qf6
- 2.Qc3#
- 2.Qe3#
- 1...Qh8
- 2.Se6#
- 2.Qc3#
- 2.Qe3#
- 1...Bd5
- 2.Qxd5#
- 2.Qc3#
- 1...Sd1
- 2.Be5#
- 2.Rc4#
- 2.Qc4#
- 1...Sd3
- 2.Rc4#
- 2.Qc4#
- 2.Qc3#
- 1...Sa4
- 2.Be5#
- 2.Rc4#
- 2.Qc4#
- 1...Sc4
- 2.Rxc4#
- 2.Qxc4#
- 1...Rxc5!
- threat
- 1.Rd5+?
- 1...Rxd5
- 2.Rxe4#
- 1...Bxd5!
- 1...Rxd5
- 1.Bf4?
- Keys
- 1.Rg5!
- threat
- 2.Qe3#
- 1...Qe6+
- 2.Sxe6#
- 1...Qxg5
- 2.Se6#
- 1...Rd5
- 2.Rxe4#
- 1...Bd5
- 2.Be5#
- 1...Sd1
- 2.Qc4#
- 1...Sd3
- 2.Qc4#
- 1...Sc4
- 2.Qxc4#
- threat
- 1.Rg5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 13
- Sets
- Q(g);N_GUARD::S(I)
- Q(g);N_GUARD,N_SPINP(c)::S(I)
- Q(g);N_GUARD,XS(I)::QAB1(C)
- Q(g);N_GUARD::QAB1(C)
- Q(g);N_GUARD,P_PINR(H)::S(I),XQ(g)
- R(d);S_CUTB(h)::R1(G),XP(c)
- R(d);N_GUARD::B(B),XR(d)
- R(d);N_GUARD::B(B)
- B(h);S_CUTR(d)::B(B)
- S(a);N_GUARD::QAR1(C)
- S(a);N_GUARD::QAR1(C),XS(a)
- Tries
- Try
- B(B);N_PINP(c)
- Threat
- QAB1(C)
- Vars
- Q(g);N_GUARD,XB(B)::S(I)
- B(h);S_CUTR(d)::B(B)
- S(a);N_GUARD::QAR1(C)
- S(a);N_GUARD::QAR1(C),XS(a)
- Refutation
- R(d);
- Try
- B(J);
- Threat
- DUALS(2)
- Vars
- R(d);XB(J)::R1(G),XP(c)
- B(h);XB(J)::B(B)
- Q(g);N_GUARD,N_SPINP(c)::S(I)
- Refutation
- R(d);XP(F)
- Try
- R(H);XR(d)
- Threat
- B(B)
- Vars
- Q(g);CHECK,N_GUARD::S(I),XQ(g)
- Q(g);N_GUARD,N_SPINP(c)::S(I)
- Q(g);N_GUARD::S(I)
- Q(g);N_GUARD::QAB1(C)
- B(h);N_GUARD::R1(H),XB(h)
- S(a);N_GUARD::QAR1(C)
- S(a);N_GUARD::QAR1(C),XS(a)
- Refutation
- P(f);XR(H)
- Try
- R(H);
- Threat
- DUALS(2)
- Vars
- Q(g);CHECK,N_GUARD::S(I),XQ(g)
- R(d);XP(F)::QAB1(C)
- Refutation
- R(d);XR(H)
- Try
- R(H);CHECK
- Vars
- R(d);XR(H)::R1(G),XP(c)
- Refutation
- B(h);XR(H)
- Try
- Actual
- R(H);
- Threat
- QAB1(C)
- Vars
- Q(g);CHECK,N_GUARD::S(I),XQ(g)
- Q(g);N_GUARD,XR(H)::S(I)
- R(d);S_CUTB(h)::R1(G),XP(c)
- B(h);S_CUTR(d)::B(B)
- S(a);N_GUARD::QAR1(C)
- S(a);N_GUARD::QAR1(C),XS(a)
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).