MESON Chess Problem Database
Problem Display
PID: 135901 (1q6/1p1PBR2/1Np1p1P1/1P2k3/Q4N2/3B2nr/K1PRp1n1/b3r3 w - - 0 1)
Stoyanov, Kiril N
Springaren, 2009
#2
12 + 11
SOLUTION
- SOUND
- Sets
- 1...Qd6
- 2.Bf6#
- 1...Bd4
- 2.Sc4#
- 1...Sxf4
- 2.Qxf4#
- 1...Sf1
- 2.Qe4#
- 1...Sh1
- 2.Qe4#
- 1...Se4
- 2.Qxe4#
- 1...Sf5
- 2.Qe4#
- 1...Sh5
- 2.Qe4#
- 1...Qd6
- Tries
- 1.Rf5+?
- 1...Sxf5
- 2.Qe4#
- 1...exf5!
- 1...Sxf5
- 1.Qd4+?
- 1...Bxd4
- 2.Sc4#
- 1...Kxd4!
- 1...Bxd4
- 1.c3?
- threat
- 2.Sc4#
- 2.Qd4#
- 1...Sxf4
- 2.Qd4#
- 2.Qxf4#
- 1...cxb5
- 2.Qxb5#
- 2.Qd4#
- 1...Qa7
- 2.Sc4#
- 1...Qd6
- 2.Sc4#
- 2.Bf6#
- 1...Qa8
- 2.Sc4#
- 1...Se3
- 2.Qd4#
- 1...Sf5
- 2.Qe4#
- 1...c5
- 2.Sc4#
- 1...Bxc3!
- threat
- 1.d8Q?
- threat
- 2.Sc4#
- 2.Sd7#
- 2.Bf6#
- 2.Qxb8#
- 1...Sxf4
- 2.Sc4#
- 2.Bf6#
- 2.Qxf4#
- 2.Qxb8#
- 1...cxb5
- 2.Sd7#
- 2.Bf6#
- 2.Qxb5#
- 2.Qxb8#
- 1...Qa7
- 2.Sc4#
- 2.Sd7#
- 2.Bd6#
- 2.Bf6#
- 2.Qc7#
- 2.Qd6#
- 1...Qd6
- 2.Bxd6#
- 2.Bf6#
- 2.Qxd6#
- 1...Qc7
- 2.Sc4#
- 2.Bf6#
- 2.Qxc7#
- 1...Qa8
- 2.Sc4#
- 2.Sd7#
- 2.Bd6#
- 2.Bf6#
- 2.Qc7#
- 2.Qd6#
- 1...Qc8
- 2.Sc4#
- 2.Bd6#
- 2.Bf6#
- 2.Qd6#
- 1...Rh8
- 2.Sc4#
- 2.Sd7#
- 2.Bf6#
- 1...Bd4
- 2.Sc4#
- 2.Sd7#
- 2.Qaxd4#
- 2.Qdxd4#
- 2.Qxb8#
- 1...Se3
- 2.Sd7#
- 2.Bf6#
- 2.Qxb8#
- 1...Se4
- 2.Sc4#
- 2.Sd7#
- 2.Qxe4#
- 1...Sf5
- 2.Sd7#
- 2.Bf6#
- 2.Qe4#
- 1...Sh5
- 2.Sc4#
- 2.Sd7#
- 2.Qe4#
- 2.Qxb8#
- 1...Qxd8!
- threat
- 1.d8R?
- threat
- 2.Sc4#
- 2.Sd7#
- 2.Bf6#
- 1...Sxf4
- 2.Sc4#
- 2.Bf6#
- 2.Qxf4#
- 1...cxb5
- 2.Sd7#
- 2.Bf6#
- 2.Qxb5#
- 1...Qd6
- 2.Bxd6#
- 2.Bf6#
- 1...Qc7
- 2.Sc4#
- 2.Bf6#
- 1...Qc8
- 2.Sc4#
- 2.Bd6#
- 2.Bf6#
- 1...Bd4
- 2.Sc4#
- 2.Sd7#
- 2.Qxd4#
- 1...Se3
- 2.Sd7#
- 2.Bf6#
- 1...Se4
- 2.Sc4#
- 2.Sd7#
- 2.Qxe4#
- 1...Sf5
- 2.Sd7#
- 2.Bf6#
- 2.Qe4#
- 1...Sh5
- 2.Sc4#
- 2.Sd7#
- 2.Qe4#
- 1...Qxd8!
- threat
- 1.Rf5+?
- Keys
- 1.Bf5!
- threat
- 2.Sd3#
- 1...Sxf4
- 2.Sc4#
- 1...Sxf5
- 2.Bf6#
- 1...exf5
- 2.Bf6#
- 1...Se4
- 2.Qxe4#
- 1...Qd6
- 2.Bxd6#
- 1...Sf1
- 2.Qe4#
- 1...Sh1
- 2.Qe4#
- 1...Sh5
- 2.Qe4#
- threat
- 1.Bf5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 3
- ADDED MATES = 1
- REMOVED MATES = 1
- Sets
- Q(k);SBLOCK::B(K)
- B(a);SBLOCK::S(H)
- S(d);OGATE,XS(F)::QAB1(E),XS(d)
- S(e);N_GUARD::QAR1(E)
- S(e);N_GUARD::QAR1(E),XS(e)
- Tries
- Try
- R(L);CHECK
- Vars
- S(e);XR(L)::QAR1(E)
- Refutation
- P(i);XR(L)
- Try
- Q(E);CHECK
- Vars
- B(a);SBLOCK,XQ(E)::S(H)
- Refutation
- K(g);S_FLIGHT,XQ(E)
- Try
- P(B);
- Threat
- DUALS(2)
- Vars
- Q(k);P_PINQ(E)::S(H)
- S(d);::QAB1(E)
- S(e);N_GUARD::QAR1(E)
- P(h);::S(H)
- Refutation
- B(a);XP(B)
- Try
- P(J);
- Threat
- DUALS(4)
- Refutation
- Q(k);XQ(J)
- Try
- P(J);
- Threat
- DUALS(3)
- Refutation
- Q(k);XR(J)
- Try
- Actual
- B(D);
- Threat
- S(F)
- Vars
- S(d);SBLOCK,XS(F)::S(H)
- S(e);SBLOCK,XB(D)::B(K)
- P(i);SBLOCK,XB(D)::B(K)
- S(e);N_GUARD::QAR1(E),XS(e)
- Q(k);N_GUARD::B(K),XQ(k)
- S(e);N_GUARD::QAR1(E)
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).