MESON Chess Problem Database
Problem Display
PID: 180820 (1B3R2/1Q2p3/b7/r2r1N1p/R1p1k3/2P3P1/3PBn2/5K2 w - - 0 1)
Borodavkin, Sergey
Makovetski, A
Sachmatija, 2017
#2
10 + 8
SOLUTION
- SOUND
- Sets
- 1...Rb5
- 2.Rxc4#
- 1...Sd1
- 2.d3#
- 1...Sh1
- 2.d3#
- 1...Sh3
- 2.d3#
- 1...Sg4
- 2.d3#
- 1...e5
- 2.Sd6#
- 1...Rb5
- Tries
- 1.Se3?
- threat
- 2.Rf4#
- 1...Sd3
- 2.Bf3#
- 1...e5
- 2.Qh7#
- 1...Sh3!
- threat
- 1.Sh4?
- threat
- 2.Rf4#
- 1...Sd3
- 2.Bf3#
- 1...e5
- 2.Qh7#
- 1...Sh3!
- threat
- 1.Sd6+?
- 1...Ke5
- 2.Qxe7#
- 1...exd6!
- 1...Ke5
- 1.Sh6?
- threat
- 2.Rf4#
- 1...Sd3
- 2.Bf3#
- 1...e5
- 2.Qh7#
- 1...Sh3!
- threat
- 1.Sxe7?
- threat
- 2.Rf4#
- 1...Sd3
- 2.Bf3#
- 1...Sh3!
- threat
- 1.g4?
- threat
- 2.Sg3#
- 1...Sh1
- 2.d3#
- 1...h4!
- threat
- 1.Se3?
- Keys
- 1.Sd4!
- threat
- 2.Rf4#
- 1...Sd3
- 2.Bf3#
- 1...Sh3
- 2.Qb1#
- 1...e5
- 2.Qh7#
- threat
- 1.Sd4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 1
- REMOVED MATES = 4
- Sets
- R(d);S_CUTB(g)::R(F),XP(b)
- S(a);N_GUARD::P(B)
- P(h);N_GUARD,SBLOCK::S(G)
- Tries
- Try
- S(G);
- Threat
- R1(J)
- Vars
- S(a);SBLOCK::B(C)
- P(h);OGATE::QAB(H)
- Refutation
- S(a);
- Try
- S(G);
- Threat
- R1(J)
- Vars
- S(a);SBLOCK::B(C)
- P(h);OGATE::QAB(H)
- Refutation
- S(a);
- Try
- S(G);CHECK
- Vars
- K(c);N_SPINP(b),N_SPINR(e),P-FLIGHT::QAR2(H),XP(h)
- Refutation
- P(h);XS(G)
- Try
- S(G);
- Threat
- R1(J)
- Vars
- S(a);SBLOCK::B(C)
- P(h);OGATE::QAB(H)
- Refutation
- S(a);
- Try
- S(G);XP(h)
- Threat
- R1(J)
- Vars
- S(a);SBLOCK::B(C)
- Refutation
- S(a);
- Try
- P(E);
- Threat
- S(G)
- Vars
- S(a);N_GUARD::P(B)
- Refutation
- P(f);
- Try
- Actual
- S(G);N_PINP(b)
- Threat
- R1(J)
- Vars
- S(a);SBLOCK::B(C)
- S(a);N_GUARD::QAB(H)
- P(h);OGATE::QAB(H)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
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