MESON Chess Problem Database
Problem Display
PID: 275697 (b3R2n/4Qpp1/3p4/4B2r/2n1k2p/3R2bB/K2pP3/8 w - - 0 1)
Myhre, Erling
Schackvarlden, 1936
#2
7 + 11
| 15601 | Albrecht-Leiss-Degener Collection | 2024 |
SOLUTION
- SOUND
- Sets
- 1...Se3
- 2.Rd4#
- 1...f5
- 2.Bg2#
- 1...Se3
- Tries
- 1.Bxg3+?
- 1...Re5
- 2.Qxh4#
- 1...Se5!
- 1...Re5
- 1.Qg5?
- threat
- 2.Bg2#
- 2.Bf5#
- 2.Rd4#
- 1...Bxe5
- 2.Bg2#
- 2.Bf5#
- 2.Qg4#
- 1...Sxe5
- 2.Bg2#
- 2.Bf5#
- 2.Qe3#
- 1...dxe5
- 2.Bg2#
- 2.Bf5#
- 1...d1Q
- 2.Bg2#
- 2.Bf5#
- 1...d1R
- 2.Bg2#
- 2.Bf5#
- 1...Bf2
- 2.Bg2#
- 2.Bf5#
- 2.Qf4#
- 2.Qg2#
- 2.Qg4#
- 1...Bf4
- 2.Bg2#
- 2.Bf5#
- 2.Qxf4#
- 2.Qg2#
- 1...Se3
- 2.Bxg3#
- 2.Bf4#
- 2.Rd4#
- 2.Qxe3#
- 1...f5
- 2.Bg2#
- 2.Bxf5#
- 2.Rd4#
- 1...g6
- 2.Bg2#
- 2.Rd4#
- 1...Rxg5!
- threat
- 1.Qf6?
- threat
- 2.Bg2#
- 2.Qf3#
- 1...Rf5
- 2.Bxf5#
- 2.Qxf5#
- 1...Bf4
- 2.Bg2#
- 2.Qxf4#
- 1...Se3
- 2.Rd4#
- 2.Qf3#
- 1...gxf6!
- threat
- 1.Qe6?
- threat
- 2.Bg2#
- 2.Qxc4#
- 1...Rxe5
- 2.Qxc4#
- 2.Qf5#
- 1...Bxe5
- 2.Qxc4#
- 2.Qg4#
- 1...Sxe5
- 2.Qc4#
- 1...dxe5
- 2.Qxc4#
- 1...Rf5
- 2.Bxf5#
- 2.Qxc4#
- 2.Qxf5#
- 1...Bf2
- 2.Bg2#
- 2.Qg4#
- 1...Bd5
- 2.Bg2#
- 2.Qxd5#
- 1...Sb2
- 2.Bg2#
- 1...Sa3
- 2.Bg2#
- 1...Se3
- 2.Rd4#
- 1...Sa5
- 2.Bg2#
- 1...Sb6
- 2.Bg2#
- 1...d5
- 2.Bg2#
- 1...fxe6!
- threat
- 1.Qxf7?
- threat
- 2.Bg2#
- 2.Qxc4#
- 2.Qf3#
- 1...Sxe5
- 2.Bg2#
- 2.Qc4#
- 2.Qf3#
- 1...Rf5
- 2.Bxf5#
- 2.Qxc4#
- 2.Qxf5#
- 1...Bf2
- 2.Bg2#
- 2.Qf3#
- 2.Qf4#
- 1...Bf4
- 2.Bg2#
- 2.Qxc4#
- 2.Qxf4#
- 1...Bd5
- 2.Bg2#
- 2.Qxd5#
- 2.Qf3#
- 1...Sb2
- 2.Bg2#
- 2.Qf3#
- 1...Sa3
- 2.Bg2#
- 2.Qf3#
- 1...Se3
- 2.Rd4#
- 2.Qf3#
- 1...Sa5
- 2.Bg2#
- 2.Qf3#
- 1...Sb6
- 2.Bg2#
- 2.Qf3#
- 1...d5
- 2.Bg2#
- 2.Qf3#
- 1...Sxf7!
- threat
- 1.Bxg3+?
- Keys
- 1.Qd7!
- threat
- 2.Bg2#
- 1...Rxe5
- 2.Qf5#
- 1...Bxe5
- 2.Qg4#
- 1...Sxe5
- 2.Qa4#
- 1...dxe5
- 2.Qd4#
- 1...Rf5
- 2.Bxf5#
- 2.Qxf5#
- 1...Se3
- 2.Rd4#
- threat
- 1.Qd7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 1
- Sets
- S(c);SBLOCK::R1(C)
- P(h);SBLOCK::B(D)
- Tries
- Try
- B(E);CHECK,XB(b)
- Vars
- R(f);P_SPINR(f)::QAR(F),XP(e)
- Refutation
- S(c);P_SPINS(c)
- Try
- Q(F);
- Threat
- DUALS(3)
- Refutation
- R(f);XQ(F)
- Try
- Q(F);
- Threat
- DUALS(2)
- Refutation
- P(i);XQ(F)
- Try
- Q(F);
- Threat
- DUALS(2)
- Vars
- S(c);P_SPINS(c),XB(E)::QAR2(F)
- P(g);P_SPINP(g),XB(E)::QAR2(F),XS(c)
- S(c);::B(D)
- S(c);SBLOCK::R1(C)
- P(g);::B(D)
- Refutation
- P(h);XQ(F)
- Try
- Q(F);XP(h)
- Threat
- DUALS(3)
- Refutation
- S(k);XQ(F)
- Try
- Actual
- Q(F);
- Threat
- B(D)
- Vars
- R(f);N_GUARD,P_SPINR(f),XB(E)::QAB1(F)
- B(b);N_GUARD,P_SPINB(b),XB(E)::QAR2(F)
- S(c);OGATEB,P_SPINS(c),XB(E)::QAR(F)
- P(g);OGATE,P_SPINP(g),XB(E)::QAR1(F)
- S(c);SBLOCK::R1(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).