MESON Chess Problem Database
Problem Display
PID: 278071 (3R4/2p5/b3P1q1/1pN3B1/pK2Qbr1/3BP1p1/2Nk1P1n/4Rn2 w - - 0 1)
Maleika, Gerhard
Phenix, 2007
#2
11 + 11
SOLUTION
- SOUND
- Sets
- 1...Qxe4+
- 2.Sxe4#
- 1...Bxe3
- 2.Bxf1#
- 2.Be2#
- 2.Bc4#
- 2.Bxb5#
- 1...a3
- 2.Sb3#
- 1...Qxe4+
- Tries
- 1.Qd4?
- threat
- 2.Be4#
- 2.Bf5#
- 2.Bxg6#
- 2.Qc3#
- 1...Qxd3
- 2.Qc3#
- 2.Qxd3#
- 1...Qxg5
- 2.Se4#
- 2.Be4#
- 2.Bf5#
- 2.Bg6#
- 2.Bh7#
- 2.Qc3#
- 1...Qxe6
- 2.Be4#
- 2.Bf5#
- 2.Bg6#
- 2.Bh7#
- 2.Qc3#
- 1...Bxe3
- 2.Be4#
- 1...Bxg5
- 2.Be4#
- 1...Bd6
- 2.Be4#
- 1...Qe4
- 2.Sxe4#
- 2.Bxe4#
- 1...Qf5
- 2.Be4#
- 2.Bxf5#
- 2.Qc3#
- 1...Qh5
- 2.Se4#
- 2.Be4#
- 2.Bf5#
- 2.Bg6#
- 2.Bh7#
- 2.Qc3#
- 1...Qf7
- 2.Se4#
- 2.Be4#
- 2.Bf5#
- 2.Bg6#
- 2.Bh7#
- 2.Qc3#
- 1...Qh7
- 2.Be4#
- 2.Bf5#
- 2.Bg6#
- 2.Bxh7#
- 2.Qc3#
- 1...Qe8
- 2.Se4#
- 2.Be4#
- 2.Bf5#
- 2.Bg6#
- 2.Bh7#
- 2.Qc3#
- 1...Qf6
- 2.Se4#
- 1...Qh6
- 2.Se4#
- 2.Be4#
- 2.Bf5#
- 2.Bg6#
- 2.Bh7#
- 2.Qc3#
- 1...Qg7
- 2.Se4#
- 1...Qg8
- 2.Se4#
- 2.Be4#
- 2.Bf5#
- 2.Bg6#
- 2.Bh7#
- 2.Qc3#
- 1...Sf3
- 2.Qc3#
- 1...Be5!
- threat
- 1.exf4?
- threat
- 2.Bxf1#
- 2.Be2#
- 2.Bc4#
- 2.Bxb5#
- 2.Qe2#
- 1...Qxe4+
- 2.Sxe4#
- 2.Bxe4#
- 1...Qxg5
- 2.Qe2#
- 1...Rxf4
- 2.Bxf1#
- 2.Be2#
- 2.Bc4#
- 2.Bxb5#
- 1...Rxg5
- 2.Qe2#
- 1...Qf5
- 2.Qe2#
- 1...Qf7
- 2.Qe2#
- 1...Qh7
- 2.Qe2#
- 1...Qe8
- 2.Qe2#
- 1...Qf6
- 2.Qe2#
- 1...Qg7
- 2.Qe2#
- 1...Qg8
- 2.Qe2#
- 1...Bb7
- 2.Qe2#
- 1...Bc8
- 2.Qe2#
- 1...Se3
- 2.Qxe3#
- 1...Sf3
- 2.Qe2#
- 1...Qxe6!
- threat
- 1.Qd4?
- Keys
- 1.Qg2!
- threat
- 2.fxg3#
- 2.f3#
- 1...Qe4+
- 2.Sxe4#
- 1...Bxe3+
- 2.Be4#
- 1...Be5+
- 2.f4#
- 1...Bxg5+
- 2.f4#
- 1...Bd6+
- 2.f4#
- 1...Sxe3
- 2.fxe3#
- 1...gxf2
- 2.Qxf2#
- 1...Bb7
- 2.f3#
- 1...Sf3
- 2.fxg3#
- threat
- 1.Qg2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 8
- REMOVED MATES = 1
- Sets
- Q(j);CHECK,XQ(G)::S(H),XQ(j)
- P(e);N_GUARD::S(H)
- Tries
- Try
- Q(G);
- Threat
- DUALS(4)
- Vars
- B(f);P_PINQ(G),P_SPINB(f),XP(E)::QAR(G)+B(D)
- B(f);P_PINQ(G),XB(I)::QAR(G)+B(D)
- B(f);P_PINQ(G),P_PINS(H)::QAR(G)+B(D)
- Q(j);N_GUARD::S(H)
- S(c);::QAB1(G)
- Refutation
- B(f);P_PINQ(G)
- Try
- P(E);XB(f)
- Threat
- DUALS(5)
- Vars
- Q(j);XB(I)::QAR1(G)
- R(g);XB(I)::QAR1(G)
- Q(j);::QAR1(G)
- B(i);::QAR1(G)
- S(a);N_GUARD::QAB1(G),XS(a)
- S(c);::QAR1(G)
- Refutation
- Q(j);XP(J)
- Try
- Actual
- Q(G);
- Threat
- DUALS(2)
- Vars
- Q(j);CHECK,N_GUARD::S(H),XQ(j)
- B(f);CHECK,N_GUARD,P_SPINB(f),XP(E)::R(K)+B(D)
- B(f);CHECK,OGATE::QAR(G)+P(C)
- B(f);CHECK,OGATE,XB(I)::QAR(G)+P(C)
- B(f);CHECK,OGATE,P_PINS(H)::QAR(G)+P(C)
- S(a);OGATE,XP(E)::QAR(G)+P(C),XS(a)
- P(d);OGATE,P_SPINP(d),XP(C)::QAR2(G),XP(d)
- B(i);::QAR(G)+P(C)
- S(c);::QAR(G)+P(C),XP(d)
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).