MESON Chess Problem Database
Problem Display
PID: 142227 (4n3/3RQ3/4P2n/1b1PkPBR/1N6/2P2Pb1/7p/1B5K w - - 0 1)
Mariz, Gabriel
The Problemist Supplement, 2011
#2
12 + 6
SOLUTION
- SOUND
- Sets
- 1...Be1
- 2.f4#
- 1...Bf2
- 2.f4#
- 1...Bh4
- 2.f4#
- 1...Bf1
- 2.Sc6#
- 1...Be2
- 2.Sc6#
- 1...Bc4
- 2.Sc6#
- 1...Ba6
- 2.Sc6#
- 1...Bc6
- 2.Sxc6#
- 1...Bxd7
- 2.exd7#
- 1...Sf7
- 2.exf7#
- 1...Sd6
- 2.Qxd6#
- 2.Qf6#
- 2.Qg7#
- 1...Sf6
- 2.Qd6#
- 2.Qxf6#
- 1...Sc7
- 2.Qd6#
- 2.Qf6#
- 2.Qg7#
- 1...Sg7
- 2.Qd6#
- 2.Qf6#
- 2.Qxg7#
- 1...Be1
- Tries
- 1.Sd3+?
- 1...Kxf5
- 2.Qh7#
- 1...Bxd3!
- 1...Kxf5
- 1.Bc1?
- 1...Bxd7
- 2.exd7#
- 1...Sxf5
- 2.Rxf5#
- 1...Be1
- 2.f4#
- 1...Bf2
- 2.f4#
- 1...Bh4
- 2.f4#
- 1...Bf1
- 2.Sc6#
- 1...Be2
- 2.Sc6#
- 1...Bd3
- 2.Sxd3#
- 2.Sc6#
- 1...Ba4
- 2.Sd3#
- 1...Bc4
- 2.Sc6#
- 1...Ba6
- 2.Sc6#
- 1...Bc6
- 2.Sd3#
- 2.Sxc6#
- 1...Sg4
- 2.f6#
- 1...Sf7
- 2.exf7#
- 1...Sg8
- 2.f6#
- 1...Sd6
- 2.Qg7#
- 1...Sf6
- 2.Qd6#
- 1...Sc7
- 2.Qg7#
- 1...Sg7
- 2.Qxg7#
- 1...Bf4!
- 1...Bxd7
- 1.Bd2?
- 1...Bxd7
- 2.exd7#
- 1...Sxf5
- 2.Rxf5#
- 1...Be1
- 2.f4#
- 1...Bf2
- 2.f4#
- 1...Bh4
- 2.f4#
- 1...Bf1
- 2.Sc6#
- 1...Be2
- 2.Sc6#
- 1...Bd3
- 2.Sxd3#
- 2.Sc6#
- 1...Ba4
- 2.Sd3#
- 1...Bc4
- 2.Sc6#
- 1...Ba6
- 2.Sc6#
- 1...Bc6
- 2.Sd3#
- 2.Sxc6#
- 1...Sg4
- 2.f6#
- 1...Sf7
- 2.exf7#
- 1...Sg8
- 2.f6#
- 1...Sd6
- 2.Qg7#
- 1...Sf6
- 2.Qd6#
- 1...Sc7
- 2.Qg7#
- 1...Sg7
- 2.Qxg7#
- 1...Bf4!
- 1...Bxd7
- 1.Bf6+?
- 1...Sxf6
- 2.Qd6#
- 1...Kf4!
- 1...Sxf6
- 1.Bxh6?
- threat
- 2.f6#
- 1...Bh4
- 2.f4#
- 1...Bd3
- 2.Sxd3#
- 2.Sc6#
- 1...Sd6
- 2.Qg7#
- 1...Sf6
- 2.Qd6#
- 1...Sg7
- 2.Qxg7#
- 1...Bf4!
- threat
- 1.Qc5?
- threat
- 2.Qe3#
- 2.Qd4#
- 2.d6#
- 1...Bxd7
- 2.d6#
- 1...Bd3
- 2.d6#
- 1...Bf4
- 2.Qd4#
- 2.d6#
- 1...Bf2
- 2.f4#
- 1...Bc4
- 2.Sc6#
- 2.Qe3#
- 2.Qd4#
- 1...Bc6
- 2.Sxc6#
- 2.Qe3#
- 2.Qd4#
- 2.dxc6#
- 1...Sg4
- 2.Qd4#
- 2.d6#
- 1...Sd6
- 2.Qd4#
- 2.Qxd6#
- 1...Sf6
- 2.Qd4#
- 2.Qd6#
- 2.Qc7#
- 1...Sc7
- 2.Qe3#
- 2.Qd4#
- 2.Qd6#
- 2.Qxc7#
- 1...Sxf5!
- threat
- 1.Qg7+?
- 1...Sf6
- 2.Qxf6#
- 1...Sxg7!
- 1...Sf6
- 1.Sd3+?
- Keys
- 1.Be3!
- 1...Bxd7
- 2.exd7#
- 1...Sxf5
- 2.Rxf5#
- 1...Bf4
- 2.Bd4#
- 1...Be1
- 2.f4#
- 1...Bf2
- 2.f4#
- 1...Bh4
- 2.f4#
- 1...Bf1
- 2.Sc6#
- 1...Be2
- 2.Sc6#
- 1...Bd3
- 2.Sxd3#
- 2.Sc6#
- 1...Ba4
- 2.Sd3#
- 1...Bc4
- 2.Sc6#
- 1...Ba6
- 2.Sc6#
- 1...Bc6
- 2.Sd3#
- 2.Sxc6#
- 1...Sg4
- 2.f6#
- 1...Sf7
- 2.exf7#
- 1...Sg8
- 2.f6#
- 1...Sd6
- 2.Qg7#
- 1...Sf6
- 2.Qd6#
- 1...Sc7
- 2.Qg7#
- 1...Sg7
- 2.Qxg7#
- 1...Bxd7
- 1.Be3!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 9
- REMOVED MATES = 1
- Sets
- B(b);N_GUARD::P(D)
- B(c);N_GUARD::S(E)
- B(c);N_GUARD::S(E),XB(c)
- B(c);OGATE,XR(K)::QAR(L)+P(J),XB(c)
- S(e);OGATE::QAR(L)+P(J),XS(e)
- Tries
- Try
- S(E);CHECK
- Vars
- K(d);P-FLIGHT,XP(G)::QAB(L)
- Refutation
- B(c);XS(E)
- Try
- B(H);
- Vars
- B(c);OGATE,XR(K)::QAR(L)+P(J),XB(c)
- S(e);OGATE,P_SPINS(e),XP(G)::R1(I),XS(e)
- B(b);N_GUARD::P(D)
- B(c);N_GUARD::S(E)
- S(e);N_GUARD::R(I)+P(G)
- S(e);OGATE::QAR(L)+P(J),XS(e)
- S(f);N_GUARD::QAB(L)
- S(f);N_GUARD,SBLOCK::QAB1(L)
- S(f);N_GUARD::QAB(L),XS(f)
- Refutation
- B(b);
- Try
- B(H);
- Vars
- B(c);OGATE,XR(K)::QAR(L)+P(J),XB(c)
- S(e);OGATE,P_SPINS(e),XP(G)::R1(I),XS(e)
- B(b);N_GUARD::P(D)
- B(c);N_GUARD::S(E)
- S(e);N_GUARD::R(I)+P(G)
- S(e);OGATE::QAR(L)+P(J),XS(e)
- S(f);N_GUARD::QAB(L)
- S(f);N_GUARD,SBLOCK::QAB1(L)
- S(f);N_GUARD::QAB(L),XS(f)
- Refutation
- B(b);
- Try
- B(H);CHECK
- Vars
- S(f);SBLOCK,XB(H)::QAB1(L)
- Refutation
- K(d);S_FLIGHT
- Try
- B(H);XS(e)
- Threat
- R(I)+P(G)
- Vars
- B(b);N_GUARD::P(D)
- S(f);N_GUARD::QAB(L)
- S(f);N_GUARD,SBLOCK::QAB1(L)
- S(f);N_GUARD::QAB(L),XS(f)
- Refutation
- B(b);
- Try
- Q(L);
- Threat
- DUALS(3)
- Vars
- B(c);XR(K)::QAR(L)+P(F)
- B(c);::QAR(L)+P(F)
- B(b);N_GUARD::P(D)
- Refutation
- S(e);XP(G)
- Try
- Q(L);CHECK
- Vars
- S(f);N_GUARD,P_SPINS(f)::QAB1(L),XS(f)
- Refutation
- S(f);XQ(L)
- Try
- Actual
- B(H);
- Vars
- B(c);OGATE,XR(K)::QAR(L)+P(J),XB(c)
- S(e);OGATE,P_SPINS(e),XP(G)::R1(I),XS(e)
- B(b);SBLOCK::B(H)
- B(b);N_GUARD::P(D)
- B(c);N_GUARD::S(E)
- S(e);N_GUARD::R(I)+P(G)
- S(e);OGATE::QAR(L)+P(J),XS(e)
- S(f);N_GUARD::QAB(L)
- S(f);N_GUARD,SBLOCK::QAB1(L)
- S(f);N_GUARD::QAB(L),XS(f)
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).