MESON Chess Problem Database
Problem Display
PID: 278220 (K7/pP1R1n1N/5pP1/nrpNkB2/R3p1P1/2p3Pr/6p1/qb2B1Q1 w - - 0 1)
Armeni, Alberto
Phenix, 2008
#2
12 + 13
SOLUTION
- SOUND
- Sets
- 1...Qa2
- 2.Bxc3#
- 1...Rxg3
- 2.Bxg3#
- 1...Rb2
- 2.Bxc3#
- 1...Ba2
- 2.Rxe4#
- 1...c2
- 2.Rxe4#
- 1...Qa2
- Tries
- 1.Sxc3?
- threat
- 2.Rd5#
- 1...Qxc3
- 2.Bxc3#
- 1...Rxg3
- 2.Bxg3#
- 1...Ba2
- 2.Rxe4#
- 1...Sd6
- 2.Re7#
- 1...c4
- 2.Qd4#
- 1...Qa2!
- threat
- 1.Se3?
- threat
- 2.Rd5#
- 1...Rxg3
- 2.Bxg3#
- 1...Qa2
- 2.Bxc3#
- 1...Ba2
- 2.Rxe4#
- 1...Sd6
- 2.Re7#
- 1...c4!
- threat
- 1.Sb4?
- threat
- 2.Rd5#
- 1...Rxg3
- 2.Bxg3#
- 1...Rxb4
- 2.Qxc5#
- 1...cxb4
- 2.Qd4#
- 1...Qa2
- 2.Bxc3#
- 1...Sd6
- 2.Re7#
- 1...c4
- 2.Qd4#
- 1...Ba2!
- threat
- 1.Sf4?
- threat
- 2.Rd5#
- 1...Qa2
- 2.Bxc3#
- 1...Ba2
- 2.Rxe4#
- 1...Sd6
- 2.Re7#
- 1...c4
- 2.Qd4#
- 1...Rxg3!
- threat
- 1.Sb6?
- threat
- 2.Rd5#
- 1...Rxg3
- 2.Bxg3#
- 1...Rxb6
- 2.Qxc5#
- 1...Qa2
- 2.Bxc3#
- 1...Ba2
- 2.Rxe4#
- 1...Sd6
- 2.Re7#
- 1...c4
- 2.Qd4#
- 1...axb6!
- threat
- 1.Sdxf6?
- threat
- 2.Rd5#
- 1...Rxg3
- 2.Bxg3#
- 1...Qa2
- 2.Bxc3#
- 1...Ba2
- 2.Rxe4#
- 1...Sd6
- 2.Re7#
- 1...c4
- 2.Qd4#
- 1...Rxh7!
- threat
- 1.Se7?
- threat
- 2.Rd5#
- 1...Rxg3
- 2.Bxg3#
- 1...Qa2
- 2.Bxc3#
- 1...Ba2
- 2.Rxe4#
- 1...c4
- 2.Qd4#
- 1...Sd6!
- threat
- 1.b8Q+?
- 1...Sd6
- 2.Qxd6#
- 1...Rxb8+!
- 1...Sd6
- 1.Sxc3?
- Keys
- 1.Sc7!
- threat
- 2.Rd5#
- 1...Rxg3
- 2.Bxg3#
- 1...Qa2
- 2.Bxc3#
- 1...Ba2
- 2.Rxe4#
- 1...Sd6
- 2.Re7#
- 1...c4
- 2.Qd4#
- threat
- 1.Sc7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 2
- Sets
- Q(a);N_GUARD::B(A),XP(d)
- R(e);OGATE,XP(C)::B(A),XR(e)
- R(h);S_CUTQ(a)::B(A),XP(d)
- B(b);N_GUARD::R1(D),XP(f)
- P(d);S_CUTB(b)::R1(D),XP(f)
- Tries
- Try
- S(F);XP(d)
- Threat
- R1(J)
- Vars
- Q(a);OGATE,XS(F)::B(A),XQ(a)
- R(e);OGATE,XP(C)::B(A),XR(e)
- B(b);N_GUARD::R1(D),XP(f)
- S(m);SBLOCK::R(J)
- P(i);N_GUARD::QAB1(B)
- Refutation
- Q(a);
- Try
- S(F);
- Threat
- R1(J)
- Vars
- R(e);OGATE,XP(C)::B(A),XR(e)
- Q(a);N_GUARD::B(A),XP(d)
- B(b);N_GUARD::R1(D),XP(f)
- S(m);SBLOCK::R(J)
- Refutation
- P(i);
- Try
- S(F);
- Threat
- R1(J)
- Vars
- R(e);OGATE,XP(C)::B(A),XR(e)
- R(h);N_GUARD,XS(F)::QAR2(B),XP(i)
- P(i);N_GUARD,XS(F)::QAB1(B)
- Q(a);N_GUARD::B(A),XP(d)
- S(m);SBLOCK::R(J)
- P(i);N_GUARD::QAB1(B)
- Refutation
- B(b);
- Try
- S(F);
- Threat
- R1(J)
- Vars
- Q(a);N_GUARD::B(A),XP(d)
- B(b);N_GUARD::R1(D),XP(f)
- S(m);SBLOCK::R(J)
- P(i);N_GUARD::QAB1(B)
- Refutation
- R(e);XP(C)
- Try
- S(F);
- Threat
- R1(J)
- Vars
- R(e);OGATE,XP(C)::B(A),XR(e)
- R(h);N_GUARD,XS(F)::QAR2(B),XP(i)
- Q(a);N_GUARD::B(A),XP(d)
- B(b);N_GUARD::R1(D),XP(f)
- S(m);SBLOCK::R(J)
- P(i);N_GUARD::QAB1(B)
- Refutation
- P(l);XS(F)
- Try
- S(F);XP(k)
- Threat
- R1(J)
- Vars
- R(e);OGATE,XP(C)::B(A),XR(e)
- Q(a);N_GUARD::B(A),XP(d)
- B(b);N_GUARD::R1(D),XP(f)
- S(m);SBLOCK::R(J)
- P(i);N_GUARD::QAB1(B)
- Refutation
- R(e);XS(K)
- Try
- S(F);
- Threat
- R1(J)
- Vars
- R(e);OGATE,XP(C)::B(A),XR(e)
- Q(a);N_GUARD::B(A),XP(d)
- B(b);N_GUARD::R1(D),XP(f)
- P(i);N_GUARD::QAB1(B)
- Refutation
- S(m);
- Try
- P(I);CHECK
- Vars
- S(m);N_GUARD,P_SPINS(m)::QAB1(I),XS(m)
- Refutation
- R(h);CHECK,XQ(I)
- Try
- Actual
- S(F);
- Threat
- R1(J)
- Vars
- R(e);OGATE,XP(C)::B(A),XR(e)
- Q(a);N_GUARD::B(A),XP(d)
- B(b);N_GUARD::R1(D),XP(f)
- S(m);SBLOCK::R(J)
- P(i);N_GUARD::QAB1(B)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
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