MESON Chess Problem Database
Problem Display
PID: 147437 (4K3/2Q5/2p1Bp2/1N6/Rn1bkN2/R4n2/1p1P1p2/4r3 w - - 0 1)
Andersson, Gunnar
Vart Hem, 1934
(First published on Sat Mar 31 1934)
#2
8 + 9
| 14868 | Pirnie Collection | 2013 |
| 5454 | Near Snap | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Be3
- 2.d3#
- 1...Sc2
- 2.Sc3#
- 1...Sd3
- 2.Sc3#
- 1...Sa6
- 2.Sc3#
- 1...Be3
- Tries
- 1.Sg2?
- threat
- 2.Qf4#
- 1...Be3
- 2.d3#
- 1...Be5
- 2.Qxc6#
- 2.d3#
- 1...Se5
- 2.Sd6#
- 1...Sd3
- 2.Sc3#
- 1...Sd5
- 2.d3#
- 1...Bc3!
- threat
- 1.Sd3?
- threat
- 2.Sd6#
- 2.Qf4#
- 1...Sxd2
- 2.Qf4#
- 1...Sxd3
- 2.Sc3#
- 1...cxb5
- 2.Qf4#
- 1...Bc3
- 2.Sxf2#
- 2.Sc5#
- 1...Sg1
- 2.Qf4#
- 1...Sh2
- 2.Qf4#
- 1...Sh4
- 2.Qf4#
- 1...Sg5
- 2.Qf4#
- 1...Be3
- 2.Qxc6#
- 1...Bc5
- 2.Sxc5#
- 2.Qf4#
- 2.Qxc6#
- 1...Be5
- 2.Qxc6#
- 1...Bb6
- 2.Qf4#
- 2.Qxc6#
- 1...Ba7
- 2.Qf4#
- 2.Qxc6#
- 1...Sd5
- 2.Sxf2#
- 2.Sc5#
- 2.Sd6#
- 1...Se5!
- threat
- 1.Sh5?
- threat
- 2.Sg3#
- 2.Qf4#
- 1...f1S
- 2.Qf4#
- 1...Rg1
- 2.Qf4#
- 1...Be3
- 2.Sg3#
- 2.Sxf6#
- 2.d3#
- 1...Be5
- 2.Qxc6#
- 1...Se5
- 2.Sd6#
- 1...Sd3
- 2.Sc3#
- 2.Sg3#
- 2.Sxf6#
- 1...Sd5
- 2.Sg3#
- 1...Bc3!
- threat
- 1.Sg6?
- threat
- 2.Sd6#
- 2.Qf4#
- 1...cxb5
- 2.Qf4#
- 1...Be3
- 2.Qxc6#
- 2.d3#
- 1...Bc5
- 2.Qf4#
- 2.Qxc6#
- 1...Be5
- 2.Qxc6#
- 1...Bb6
- 2.Qf4#
- 2.Qxc6#
- 1...Ba7
- 2.Qf4#
- 2.Qxc6#
- 1...Se5
- 2.Sd6#
- 1...Sd3
- 2.Sc3#
- 2.Sd6#
- 2.Qxc6#
- 1...Sd5
- 2.Sd6#
- 1...Bc3!
- threat
- 1.Re3+?
- 1...Bxe3
- 2.d3#
- 1...Rxe3!
- 1...Bxe3
- 1.Qh7+?
- 1...Ke5
- 2.Qf5#
- 1...f5
- 2.Qxf5#
- 1...Kxf4!
- 1...Ke5
- 1.Sg2?
- Keys
- 1.Sh3!
- threat
- 2.Qf4#
- 1...Bc3
- 2.Sxf2#
- 1...Be3
- 2.d3#
- 1...Be5
- 2.Qxc6#
- 1...Se5
- 2.Sd6#
- 1...Sd3
- 2.Sc3#
- 1...Sd5
- 2.Sxf2#
- threat
- 1.Sh3!
Anticipated by 201451(1922), 6062(1926)
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 2
- Sets
- B(f);P_SPINS(e),SBLOCK::P(A)
- S(e);P_SPINB(f)::S(E)
- Tries
- Try
- S(D);
- Threat
- QAR1(G)
- Vars
- B(f);P_SPINS(e)::P(A)
- S(d);SBLOCK::S(E)
- S(e);P_SPINB(f),SBLOCK::S(E)
- S(e);N_GUARD,P_SPINB(f)::P(A)
- Refutation
- B(f);P_SPINS(e)
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- S(d);XP(A)::QAR1(G)
- S(e);P_SPINB(f),SBLOCK,XS(D)::S(E)
- P(h);XS(E)::QAR1(G)
- S(d);::QAR1(G)
- B(f);P_SPINS(e)::QAB(G),XP(h)
- Refutation
- S(d);
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- P(c);::QAR1(G)
- R(a);::QAR1(G)
- B(f);P_SPINS(e),SBLOCK::QAB(G),XP(h)
- S(d);SBLOCK::S(E)
- S(e);P_SPINB(f)::S(D)
- Refutation
- B(f);P_SPINS(e)
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- P(h);XS(E)::QAR1(G)
- B(f);P_SPINS(e)::QAB(G),XP(h)
- S(d);::S(E)
- S(e);P_SPINB(f)::S(E)
- Refutation
- B(f);P_SPINS(e)
- Try
- R(B);CHECK
- Vars
- B(f);P_SPINS(e),SBLOCK,XR(B)::P(A)
- Refutation
- R(a);XR(B)
- Try
- Q(G);CHECK
- Vars
- K(g);P-FLIGHT::QAR1(G)
- P(i);P_SPINP(i)::QAB1(G),XP(i)
- Refutation
- K(g);P-FLIGHT,P_PINB(F),XS(D)
- Try
- Actual
- S(D);
- Threat
- QAR1(G)
- Vars
- B(f);N_GUARD,P_SPINS(e)::S(D),XP(c)
- B(f);P_SPINS(e),SBLOCK::P(A)
- B(f);P_SPINS(e),SBLOCK::QAB(G),XP(h)
- S(d);SBLOCK::S(E)
- S(e);P_SPINB(f),SBLOCK::S(E)
- S(e);P_SPINB(f)::S(D),XP(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).