MESON Chess Problem Database
Problem Display
PID: 250082 (8/3Q4/7K/8/n5B1/2p1B3/2prP1Np/R1bk1NqR w - - 0 1)
Hultberg, Gustav Herbert
1st Prize, Sveden, 1927
#2
9 + 8
| 6490 | yacpdb | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Qxe3+
- 2.Sfxe3#
- 1...Qxf1
- 2.Rxf1#
- 1...Rd3
- 2.Rxc1#
- 2.Qxd3#
- 2.exd3#
- 1...Rd4
- 2.Rxc1#
- 2.Qxd4#
- 1...Rd5
- 2.Rxc1#
- 2.Qxd5#
- 1...Rd6+
- 2.Qxd6#
- 1...Rxd7
- 2.Rxc1#
- 1...Qxe3+
- Tries
- 1.Sxh2?
- threat
- 2.Rxg1#
- 1...Rd6+
- 2.Qxd6#
- 1...Qe1
- 2.Rxe1#
- 1...Qf1
- 2.Rxf1#
- 1...Qxh1!
- threat
- 1.Bxg1?
- threat
- 2.Sfe3#
- 2.e3#
- 2.e4#
- 1...Rd3+
- 2.e3#
- 1...Rd4+
- 2.e3#
- 1...Rd5+
- 2.e3#
- 1...Rxd7+
- 2.e3#
- 1...hxg1S
- 2.Sfe3#
- 1...Rd6+!
- threat
- 1.Bxd2?
- threat
- 2.Sfe3#
- 2.Be3#
- 2.Rxc1#
- 2.e3#
- 2.e4#
- 1...Qe3+
- 2.Sfxe3#
- 2.Sgxe3#
- 2.Bxe3#
- 1...Qxf1
- 2.Se3#
- 2.Bxc1#
- 2.Be3#
- 2.Bf4#
- 2.Bg5#
- 2.Rxc1#
- 2.Rxf1#
- 2.e3#
- 2.e4#
- 1...Qxg2
- 2.Se3#
- 2.Rxc1#
- 1...cxd2
- 2.Sfe3#
- 2.Qxd2#
- 2.e3#
- 2.e4#
- 1...Sb2
- 2.Sfe3#
- 2.Rxc1#
- 2.e3#
- 2.e4#
- 1...Qf2
- 2.Sfe3#
- 2.Be3#
- 2.Rxc1#
- 1...Qd4
- 2.Rxc1#
- 2.e4#
- 1...Qc5
- 2.Sfe3#
- 2.Rxc1#
- 2.e3#
- 2.e4#
- 1...Qa7
- 2.Sfe3#
- 2.Rxc1#
- 2.e3#
- 2.e4#
- 1...Sc5
- 2.Sfe3#
- 2.Rxc1#
- 2.e3#
- 2.e4#
- 1...Sb6
- 2.Sfe3#
- 2.Rxc1#
- 2.e3#
- 2.e4#
- 1...Qb6+!
- threat
- 1.Bf2?
- threat
- 2.Sfe3#
- 2.Sge3#
- 2.e3#
- 2.e4#
- 1...Rd3+
- 2.Sge3#
- 2.e3#
- 1...Rd4+
- 2.Sge3#
- 2.e3#
- 1...Rd5+
- 2.Sge3#
- 2.e3#
- 1...Rxd7+
- 2.Sge3#
- 2.e3#
- 1...Qxf2
- 2.Sfe3#
- 1...Qxf1
- 2.Se3#
- 2.Rxf1#
- 2.e3#
- 2.e4#
- 1...Qxg2
- 2.Se3#
- 1...Rd6+!
- threat
- 1.Bc5?
- threat
- 2.Sfe3#
- 2.e3#
- 2.e4#
- 1...Qe3+
- 2.Sfxe3#
- 1...Rd3+
- 2.e3#
- 1...Rd4+
- 2.e3#
- 1...Rd5+
- 2.e3#
- 1...Rxd7+
- 2.e3#
- 1...Qxf1
- 2.Rxf1#
- 2.e3#
- 2.e4#
- 1...Qxg2
- 2.Se3#
- 1...Qf2
- 2.Sfe3#
- 1...Qd4
- 2.Sfe3#
- 1...Rd6+!
- threat
- 1.Sxh2?
- Keys
- 1.Bd4!
- threat
- 2.Sfe3#
- 1...Qe3+
- 2.Sfxe3#
- 1...Rxe2+
- 2.Be3#
- 1...Rd3+
- 2.e3#
- 1...Rxd4+
- 2.e3#
- 1...Qxf1
- 2.Rxf1#
- threat
- 1.Bd4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 2
- Sets
- Q(c);CHECK,XB(F)::R(C)+S(B),DCHECK,XQ(c)
- Q(c);OGATE,P_SPINQ(c),XS(B)::R(C),XQ(c)
- R(e);CHECK,OGATEB,P_PINB(F)::QAR(I),XR(e)
- R(e);N_SPINR(e),P_PINB(F),XQ(I)::R1(A),XB(a)
- Tries
- Try
- S(B);P_PINQ(c),XP(f)
- Threat
- R(C),XQ(c)
- Vars
- R(e);CHECK,OGATEB,P_PINB(F)::QAR(I),XR(e)
- Q(c);OGATE::R1(C),XQ(c)
- Q(c);OGATE::R(C),XQ(c)
- Refutation
- Q(c);N_SPINQ(c),P_PINS(B),XR(C)
- Try
- B(F);XQ(c)
- Threat
- DUALS(3)
- Vars
- R(e);CHECK::B(G)+P(D)
- R(e);CHECK,N_SPINR(e),XQ(I)::B(G)+P(D)
- P(f);XB(F)::S(B)
- Refutation
- R(e);CHECK
- Try
- B(F);P_SPINB(F),XR(e)
- Threat
- DUALS(5)
- Refutation
- Q(c);CHECK
- Try
- B(F);
- Threat
- DUALS(4)
- Vars
- Q(c);XB(F)::R(C)+S(B),DCHECK
- Q(c);XS(E)::R(C)+S(B),DCHECK
- Refutation
- R(e);CHECK
- Try
- B(F);
- Threat
- DUALS(3)
- Vars
- Q(c);CHECK::R(C)+S(B),DCHECK,XQ(c)
- R(e);CHECK::B(G)+P(D)
- R(e);CHECK,N_SPINR(e),XQ(I)::B(G)+P(D)
- Q(c);XS(E)::R(C)+S(B),DCHECK
- Q(c);::R(C)+S(B),DCHECK
- Q(c);N_SPINR(e)::R(C)+S(B),DCHECK
- Refutation
- R(e);CHECK
- Try
- Actual
- B(F);N_PINR(e)
- Threat
- S(B)
- Vars
- Q(c);CHECK::R(C)+S(B),DCHECK,XQ(c)
- R(e);CHECK,OGATEB,P_SPINR(e),XP(D)::QAR(I)+B(F)
- R(e);CHECK,N_GUARD::B(G)+P(D)
- R(e);CHECK,N_GUARD,P_SPINR(e),XB(F)::B(G)+P(D)
- Q(c);OGATE,P_SPINQ(c),XS(B)::R(C),XQ(c)
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).