MESON Chess Problem Database
Problem Display
PID: 92035 (QB6/7B/1rp1K1pr/4N1p1/R1p1k1P1/2Pp4/q2P2P1/1N3R2 w - - 0 1)
Soroka, Ivan Ivanovich
Poesie des Schachs, 2006
#2
12 + 9
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qxb1
- 2.Rxc4#
- 1...Qa1
- 2.Rxc4#
- 1...Qb2
- 2.Rxc4#
- 1...Qc2
- 2.Rxc4#
- 1...Qa3
- 2.Rxc4#
- 1...Rxb1
- 2.Qxc6#
- 1...Rb2
- 2.Qxc6#
- 1...Rb3
- 2.Rxc4#
- 2.Qxc6#
- 1...Rb4
- 2.Qxc6#
- 1...Rxb8
- 2.Qxc6#
- 1...Rh1
- 2.Bxg6#
- 1...Rh2
- 2.Bxg6#
- 1...Rh3
- 2.Bxg6#
- 1...Rh4
- 2.Bxg6#
- 1...Rh5
- 2.Bxg6#
- 1...Qxb1
- Tries
- 1.Sf3?
- threat
- 2.Sxg5#
- 2.Re1#
- 1...Qxb1
- 2.Sxg5#
- 2.Rxc4#
- 1...Rxb1
- 2.Sxg5#
- 2.Qxc6#
- 1...Rxb8
- 2.Sxg5#
- 1...Rb5
- 2.Re1#
- 1...Rh1
- 2.Sxg5#
- 2.Bxg6#
- 1...Rh5
- 2.Bxg6#
- 2.Re1#
- 1...Qxd2!
- threat
- 1.Sxc6?
- threat
- 2.Re1#
- 1...Rxc6+
- 2.Qxc6#
- 1...Qxb1
- 2.Rxc4#
- 1...Rxb1
- 2.Sb4#
- 1...Rxb8
- 2.Sxb8#
- 1...Rh1
- 2.Bxg6#
- 1...Rh3
- 2.Bxg6#
- 1...Qxd2!
- threat
- 1.Sxg6?
- threat
- 2.Re1#
- 1...Rxg6+
- 2.Bxg6#
- 1...Qxb1
- 2.Rxc4#
- 1...Rxb1
- 2.Qxc6#
- 1...Rh1
- 2.Sh4#
- 1...Rh3
- 2.Sh4#
- 1...Qxd2!
- threat
- 1.Sd7?
- threat
- 2.Sc5#
- 2.Sf6#
- 2.Re1#
- 1...Qxb1
- 2.Sc5#
- 2.Sf6#
- 2.Rxc4#
- 1...Rxb1
- 2.Sc5#
- 2.Sf6#
- 2.Qxc6#
- 1...Rxb8
- 2.Sc5#
- 2.Sf6#
- 2.Qxc6#
- 1...Qa3
- 2.Sf6#
- 2.Re1#
- 2.Rxc4#
- 1...Rb5
- 2.Sf6#
- 2.Re1#
- 1...Rh1
- 2.Sc5#
- 2.Sf6#
- 2.Bxg6#
- 1...Rh3
- 2.Sc5#
- 2.Sf6#
- 2.Bxg6#
- 1...Qxd2!
- threat
- 1.Sf7?
- threat
- 2.Sxg5#
- 2.Sd6#
- 2.Re1#
- 1...Qxb1
- 2.Sxg5#
- 2.Sd6#
- 2.Rxc4#
- 1...Rxb1
- 2.Sxg5#
- 2.Sd6#
- 2.Qxc6#
- 1...Rxb8
- 2.Sxg5#
- 2.Sd6#
- 2.Qxc6#
- 1...Qa3
- 2.Sxg5#
- 2.Re1#
- 2.Rxc4#
- 1...Rb5
- 2.Sd6#
- 2.Re1#
- 1...Rh1
- 2.Sxg5#
- 2.Sd6#
- 2.Bxg6#
- 1...Rh3
- 2.Sxg5#
- 2.Sd6#
- 2.Bxg6#
- 1...Rh5
- 2.Sd6#
- 2.Bxg6#
- 2.Re1#
- 1...Qxd2!
- threat
- 1.g3?
- threat
- 2.Re1#
- 1...Qxb1
- 2.Rxc4#
- 1...Rxb1
- 2.Qxc6#
- 1...Rh1
- 2.Bxg6#
- 1...Rh2
- 2.Bxg6#
- 1...Qxd2!
- threat
- 1.Sf3?
- Keys
- 1.Sxc4!
- threat
- 2.Re1#
- 1...Qxc4+
- 2.Rxc4#
- 1...Qxb1
- 2.Sd6#
- 1...Qxd2
- 2.Sbxd2#
- 1...Rxb1
- 2.Qxc6#
- 1...Rxb8
- 2.Qxc6#
- 1...Rh1
- 2.Bxg6#
- 1...Rh3
- 2.Bxg6#
- threat
- 1.Sxc4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 2
- REMOVED MATES = 9
- Sets
- Q(a);N_GUARD,XS(A)::R(F),XP(c)
- Q(a);N_GUARD::R(F),XP(c)
- R(f);N_GUARD,XS(A)::QAB(K),XP(g)
- R(f);N_GUARD::QAB(K),XP(g)
- R(f);N_GUARD,N_SPINP(c),P_SPINP(g)::QAB(K),XP(g)
- R(f);N_GUARD,XB(L)::QAB(K),XP(g)
- R(i);N_GUARD::B(J),XP(h)
- Tries
- Try
- S(H);
- Threat
- DUALS(2)
- Vars
- R(f);XB(L)::S(H),XP(e)
- R(f);::R(B)
- Refutation
- Q(a);XP(C)
- Try
- S(H);P_SPINS(H),XP(g)
- Threat
- R(B)
- Vars
- R(f);CHECK,OGATE,P_SPINR(f),XS(H)::QAB(K),XR(f)
- Q(a);N_GUARD,XS(A)::R(F),XP(c)
- R(f);N_PINS(H),XS(A)::QAB(K)+S(H)
- R(f);N_PINS(H),XB(L)::QAB(K)+S(H),XR(f)
- R(i);N_GUARD::B(J),XP(h)
- Refutation
- Q(a);XP(C)
- Try
- S(H);P_SPINS(H),XP(h)
- Threat
- R(B)
- Vars
- R(i);CHECK,OGATE,P_SPINR(i),XS(H)::B(J),XR(i)
- Q(a);N_GUARD,XS(A)::R(F),XP(c)
- R(f);N_GUARD,XS(A)::QAB(K),XP(g)
- R(i);N_PINS(H)::B(J)+S(H)
- Refutation
- Q(a);XP(C)
- Try
- S(H);
- Threat
- DUALS(3)
- Refutation
- Q(a);XP(C)
- Try
- S(H);
- Threat
- DUALS(3)
- Refutation
- Q(a);XP(C)
- Try
- P(D);
- Threat
- R(B)
- Vars
- Q(a);N_GUARD,XS(A)::R(F),XP(c)
- R(f);N_GUARD,XS(A)::QAB(K),XP(g)
- R(i);N_GUARD::B(J),XP(h)
- Refutation
- Q(a);XP(C)
- Try
- Actual
- S(H);P_PINP(g),P_SPINS(H),XP(c)
- Threat
- R(B)
- Vars
- Q(a);CHECK,OGATE,P_SPINQ(a),XS(H)::R(F),XQ(a)
- Q(a);N_PINS(H),XS(A)::R(F)+S(H),DCHECK
- Q(a);N_PINS(H),XP(C)::S(A),XQ(a)
- R(f);N_GUARD,XS(A)::QAB(K),XP(g)
- R(f);N_GUARD,XB(L)::QAB(K),XP(g)
- R(i);N_GUARD::B(J),XP(h)
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).