MESON Chess Problem Database
Problem Display
PID: 96258 (4r3/2B4b/B7/R2p2N1/3kp2R/KPp2PN1/n1QP1n2/4r2q w - - 0 1)
Armeni, Alberto
Problem Observer, 1995
#2
11 + 10
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qxf3
- 2.Sxf3#
- 1...Ra1
- 2.Se2#
- 1...Rb1
- 2.Se2#
- 1...Rc1
- 2.Se2#
- 1...Rd1
- 2.Se2#
- 1...Rf1
- 2.Se2#
- 1...Rg1
- 2.Se2#
- 1...Re2
- 2.Sxe2#
- 1...Re5
- 2.Bb6#
- 1...Re6
- 2.Sxe6#
- 1...Ra8
- 2.Se6#
- 1...Rb8
- 2.Se6#
- 1...Rc8
- 2.Se6#
- 1...Rd8
- 2.Se6#
- 1...Rf8
- 2.Se6#
- 1...Rg8
- 2.Se6#
- 1...Rh8
- 2.Se6#
- 1...Bf5
- 2.Sxf5#
- 1...Bg8
- 2.Sf5#
- 1...Sc1
- 2.Qxc3#
- 1...Sb4
- 2.Qxc3#
- 1...Sd1
- 2.Qd3#
- 1...Sd3
- 2.Qxd3#
- 1...Sh3
- 2.Qd3#
- 1...cxd2
- 2.Qc5#
- 1...Qxf3
- Tries
- 1.Sf7?
- threat
- 2.Bb6#
- 1...Rb8
- 2.Be5#
- 1...Rc8
- 2.Be5#
- 1...Sd3
- 2.Qxd3#
- 1...Re6!
- threat
- 1.Bc4?
- threat
- 2.Rxd5#
- 1...dxc4
- 2.Bb6#
- 1...Re5
- 2.Bb6#
- 1...Ra8
- 2.Se6#
- 1...Rd8
- 2.Se6#
- 1...Bg8
- 2.Sf5#
- 1...Sb4
- 2.Qxc3#
- 1...cxd2!
- threat
- 1.Bb7?
- threat
- 2.Rxd5#
- 1...Re5
- 2.Bb6#
- 1...Ra8
- 2.Se6#
- 1...Rd8
- 2.Se6#
- 1...Bg8
- 2.Sf5#
- 1...Sb4
- 2.Qxc3#
- 1...cxd2!
- threat
- 1.Ra4+?
- 1...Sb4
- 2.Qxc3#
- 1...Kc5!
- 1...Sb4
- 1.Qxe4+?
- 1...R1xe4
- 2.Se2#
- 1...R8xe4
- 2.Se6#
- 1...Bxe4
- 2.Sf5#
- 1...dxe4
- 2.Bb6#
- 1...Sxe4!
- 1...R1xe4
- 1.dxc3+?
- 1...Ke3
- 2.Bf4#
- 1...Sxc3!
- 1...Ke3
- 1.f4?
- threat
- 2.Bb6#
- 1...Re6
- 2.Sxe6#
- 1...Rb8
- 2.Se6#
- 2.Be5#
- 1...Rc8
- 2.Se6#
- 2.Be5#
- 1...Sd3!
- threat
- 1.Sf7?
- Keys
- 1.fxe4!
- threat
- 2.Rxd5#
- 1...Qxe4
- 2.Sf3#
- 1...R1xe4
- 2.Se2#
- 1...R8xe4
- 2.Se6#
- 1...Bxe4
- 2.Sf5#
- 1...Sxe4
- 2.Qd3#
- 1...cxd2
- 2.Qc5#
- 1...dxe4
- 2.Bb6#
- 1...Re5
- 2.Bb6#
- 1...Rd8
- 2.Se6#
- 1...Bg8
- 2.Sf5#
- 1...Sb4
- 2.Qxc3#
- threat
- 1.fxe4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 20
- Sets
- Q(b);XP(E)::S(I),XQ(b)
- R(a);N_GUARD::S(F)
- R(a);N_GUARD::S(F),XR(a)
- R(j);SBLOCK::B(K)
- R(j);N_GUARD::S(I),XR(j)
- R(j);N_GUARD::S(I)
- B(i);N_GUARD::S(F),XB(i)
- B(i);N_GUARD::S(F)
- S(c);N_GUARD::QAB1(A),XP(e)
- S(d);N_GUARD::QAR1(A)
- S(d);N_GUARD::QAR1(A),XS(d)
- P(e);OGATE,XP(B)::QAB1(A)
- Tries
- Try
- S(I);
- Threat
- B(K)
- Vars
- R(j);N_GUARD::B(K)
- S(d);N_GUARD::QAR1(A),XS(d)
- Refutation
- R(j);
- Try
- B(J);
- Threat
- R1(H),XP(h)
- Vars
- P(h);XB(J)::B(K)
- R(j);SBLOCK::B(K)
- R(j);N_GUARD,P_PINR(H)::S(I)
- R(j);N_GUARD::S(I)
- B(i);N_GUARD::S(F)
- S(c);N_GUARD::QAB1(A),XP(e)
- Refutation
- P(e);XP(B)
- Try
- B(J);
- Threat
- R1(H),XP(h)
- Vars
- R(j);SBLOCK::B(K)
- R(j);N_GUARD,P_PINR(H)::S(I)
- R(j);N_GUARD::S(I)
- B(i);N_GUARD::S(F)
- S(c);N_GUARD::QAB1(A),XP(e)
- Refutation
- P(e);XP(B)
- Try
- R(H);CHECK
- Vars
- S(c);P_SPINS(c)::QAB1(A),XP(e)
- Refutation
- K(f);N_SPINP(g),P_SPINP(e),S_FLIGHT
- Try
- Q(A);CHECK,XP(g)
- Vars
- R(a);P_SPINR(a),XQ(A)::S(F)
- R(j);P_SPINR(j),XQ(A)::S(I)
- B(i);P_SPINB(i),XQ(A)::S(F)
- P(h);P_SPINP(h),XQ(A)::B(K)
- Refutation
- S(d);P_SPINS(d),XQ(A)
- Try
- P(B);CHECK,XP(e)
- Vars
- K(f);N_SPINP(g),S_FLIGHT::B(K)
- Refutation
- S(c);XP(B)
- Try
- P(E);N_PINP(g)
- Threat
- B(K)
- Vars
- R(j);N_GUARD::S(I),XR(j)
- Refutation
- S(d);
- Try
- Actual
- P(E);XP(g)
- Threat
- R1(H),XP(h)
- Vars
- Q(b);N_GUARD,P_SPINQ(b),XP(E)::S(I)
- R(a);N_GUARD,P_SPINR(a),XP(E)::S(F)
- R(j);N_GUARD,P_SPINR(j),XP(E)::S(I)
- B(i);N_GUARD,P_SPINB(i),XP(E)::S(F)
- S(d);N_GUARD,P_SPINS(d),XP(E)::QAR1(A)
- P(e);OGATE,XP(B)::QAB1(A)
- P(h);P_SPINP(h),XP(E)::B(K)
- R(j);SBLOCK::B(K)
- R(j);N_GUARD::S(I)
- B(i);N_GUARD::S(F)
- S(c);N_GUARD::QAB1(A),XP(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).