MESON Chess Problem Database
Problem Display
PID: 238111 (5b2/2n2r2/N1P3P1/1Rp4Q/P1k1BR2/8/b1p5/B1n4K w - - 0 1)
Hermanson, Halvar
Smena, 1960
#2
10 + 8
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Re7
- 2.Qxc5#
- 1...Rg7
- 2.Bxc2#
- 1...Rh7
- 2.Bxc2#
- 1...Bh6
- 2.Qxc5#
- 1...Bg7
- 2.Qxc5#
- 1...Se2
- 2.Qxe2#
- 1...Sb3
- 2.Qe2#
- 1...Sd3
- 2.Bd5#
- 1...Sxb5
- 2.Qd5#
- 1...Sd5
- 2.Qxd5#
- 1...Sxa6
- 2.Qd5#
- 1...Se6
- 2.Qd5#
- 1...Sa8
- 2.Qd5#
- 1...Se8
- 2.Qd5#
- 1...Re7
- Tries
- 1.Sxc7?
- threat
- 2.Bf5#
- 2.Qd5#
- 1...Rxf4
- 2.Qd5#
- 1...Rxc7
- 2.Bxc2#
- 2.Qd5#
- 1...Rf5
- 2.Bxf5#
- 1...Re7
- 2.Qxc5#
- 2.Qd5#
- 1...Rh7
- 2.Bxc2#
- 2.Bf5#
- 1...Bd6
- 2.Qd5#
- 1...Bh6
- 2.Qxc5#
- 2.Qd5#
- 1...Bg7
- 2.Qxc5#
- 2.Qd5#
- 1...Se2
- 2.Qxe2#
- 2.Qd5#
- 1...Sb3
- 2.Qe2#
- 2.Qd5#
- 1...Sd3
- 2.Bd5#
- 2.Qd5#
- 1...Rd7!
- threat
- 1.Qe2+?
- 1...Sd3
- 2.Qxd3#
- 2.Qxc2#
- 1...Sxe2!
- 1...Sd3
- 1.Qf3?
- threat
- 2.Bd3#
- 2.Bd5#
- 2.Bf5#
- 2.Qc3#
- 1...Rxf4
- 2.Qc3#
- 1...Sxb5
- 2.Bd5#
- 1...Rf5
- 2.Bd3#
- 2.Bd5#
- 2.Bxf5#
- 2.Qc3#
- 1...Rd7
- 2.Bd3#
- 2.Bd5#
- 2.Qc3#
- 1...Re7
- 2.Bd3#
- 2.Bd5#
- 2.Rxc5#
- 2.Qc3#
- 1...Bd6
- 2.Bd3#
- 2.Bd5#
- 2.Qc3#
- 1...Bh6
- 2.Bd3#
- 2.Bd5#
- 2.Rxc5#
- 2.Qc3#
- 1...Bg7
- 2.Bd3#
- 2.Bd5#
- 2.Rxc5#
- 1...Se2
- 2.Bd3#
- 2.Bd5#
- 2.Qxe2#
- 2.Qd3#
- 1...Sb3
- 2.Bd3#
- 2.Bd5#
- 2.Qe2#
- 2.Qf1#
- 2.Qc3#
- 2.Qd3#
- 1...Sd3
- 2.Bxd3#
- 2.Bd5#
- 2.Qxd3#
- 1...Sd5
- 2.Bd3#
- 2.Bxd5#
- 1...Se6
- 2.Bd3#
- 2.Bd5#
- 2.Qc3#
- 1...Rh7+!
- threat
- 1.gxf7?
- threat
- 2.Bxc2#
- 2.Bg6#
- 2.Bh7#
- 1...Sxb5
- 2.Qd5#
- 1...Bh6
- 2.Qxc5#
- 1...Bg7
- 2.Qxc5#
- 1...Se2
- 2.Qxe2#
- 1...Sb3
- 2.Qe2#
- 1...Sd3
- 2.Bd5#
- 1...Sd5
- 2.Qxd5#
- 1...Se6
- 2.Qd5#
- 1...Bd6!
- threat
- 1.Sxc7?
- Keys
- 1.Qh3!
- threat
- 2.Qc3#
- 1...Sxb5
- 2.Qe6#
- 1...Rh7
- 2.Bg2#
- 1...Bg7
- 2.Rxc5#
- 1...Se2
- 2.Qd3#
- 1...Sd3
- 2.Qxd3#
- 1...Sd5
- 2.Bd3#
- threat
- 1.Qh3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 6
- ADDED MATES = 0
- REMOVED MATES = 8
- Sets
- R(g);S_CUTB(h)::QAR1(G),XP(e)
- R(g);N_GUARD::R(E)+B(D),XP(c)
- R(g);N_GUARD,P_PINQ(G)::R(E)+B(D),XP(c)
- B(h);N_GUARD::QAR1(G),XP(e)
- S(a);N_GUARD::QAB(G),XS(a)
- S(a);N_GUARD::QAB(G)
- S(a);SBLOCK::R(E)+B(D),DCHECK
- S(f);N_GUARD,XR(F)::QAB1(G)
- S(f);N_GUARD::QAB1(G),XS(f)
- S(f);N_GUARD,XS(H)::QAB1(G)
- S(f);N_GUARD::QAB1(G)
- Tries
- Try
- S(H);XS(f)
- Threat
- DUALS(2)
- Vars
- R(g);XR(E)::QAB1(G)
- R(g);::R(E)+B(D),XR(g)
- B(h);::QAB1(G)
- Refutation
- R(g);
- Try
- Q(G);CHECK
- Refutation
- S(a);XQ(G)
- Try
- Q(G);
- Threat
- DUALS(4)
- Vars
- R(g);XR(E)::QAR1(G)
- S(f);XR(F)::R(E)+B(D),DCHECK
- Refutation
- R(g);CHECK
- Try
- P(J);XR(g)
- Threat
- DUALS(3)
- Vars
- S(f);N_GUARD,XR(F)::QAB1(G)
- B(h);N_GUARD::QAR1(G),XP(e)
- S(a);N_GUARD::QAB(G),XS(a)
- S(a);N_GUARD::QAB(G)
- S(a);SBLOCK::R(E)+B(D),DCHECK
- S(f);N_GUARD::QAB1(G),XS(f)
- S(f);N_GUARD::QAB1(G)
- Refutation
- B(h);
- Try
- Actual
- Q(G);
- Threat
- QAR1(G)
- Vars
- S(f);N_GUARD,XR(F)::QAB(G)
- R(g);N_GUARD,P_PINQ(G)::R(E)+B(D)
- B(h);N_GUARD::R1(F),XP(e)
- S(a);N_GUARD::QAB1(G)
- S(a);N_GUARD::QAB1(G),XS(a)
- S(f);SBLOCK::R(E)+B(D),DCHECK
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).