MESON Chess Problem Database
Problem Display
PID: 151974 (4N3/4pprp/4N3/Q3P2K/3pk2p/4nR1r/2P3Pb/4R2B w - - 0 1)
Guidelli, Giorgio
Good Companions (January), 1915
#2
10 + 10
SOLUTION
- SOUND
- Sets
- 1...Rhg3
- 2.Rf4#
- 1...Rgg3
- 2.Rf4#
- 1...Rg5+
- 2.Sxg5#
- 1...Bg1
- 2.Rf4#
- 1...Bf4
- 2.Rxf4#
- 1...Bxe5
- 2.Qa8#
- 1...d3
- 2.Rexe3#
- 1...Rhg3
- Tries
- 1.Rff1?
- threat
- 2.g3#
- 1...Rg5+
- 2.Sxg5#
- 1...Rxg2
- 2.Sg5#
- 1...Bxe5
- 2.Qa8#
- 1...Bf4
- 2.Rxf4#
- 1...Rhg3
- 2.Rf4#
- 1...Rgg3
- 2.Rf4#
- 1...Bg1
- 2.Rf4#
- 1...Bg3
- 2.gxh3#
- 1...Rf3!
- threat
- 1.Rf2?
- threat
- 2.g3#
- 1...Rg5+
- 2.Sxg5#
- 1...Rxg2
- 2.Sg5#
- 1...Bxe5
- 2.Qa8#
- 1...Bf4
- 2.Rxf4#
- 1...Rhg3
- 2.Rf4#
- 1...Rgg3
- 2.Rf4#
- 1...Bg1
- 2.Rf4#
- 1...Bg3
- 2.gxh3#
- 1...Rf3!
- threat
- 1.Rfxe3+?
- 1...Kf5
- 2.S8xg7#
- 1...Rxe3
- 2.g4#
- 1...dxe3!
- 1...Kf5
- 1.Rxf7?
- threat
- 2.g3#
- 1...Rg5+
- 2.Sxg5#
- 1...Rxg2
- 2.Sg5#
- 1...Bxe5
- 2.Qa8#
- 1...Rf3
- 2.gxf3#
- 1...Rhg3
- 2.Rf4#
- 1...Rgg3
- 2.Rf4#
- 1...Bg1
- 2.Rf4#
- 1...Bg3
- 2.gxh3#
- 1...Bf4
- 2.Rxf4#
- 1...Rxf7!
- threat
- 1.g3?
- threat
- 2.Rff1#
- 2.Rf2#
- 2.Rf4#
- 2.Rf6#
- 2.Rxf7#
- 1...Rg5+
- 2.Sxg5#
- 1...Rhxg3
- 2.Rf4#
- 1...Rgxg3
- 2.Rf4#
- 1...Bxg3
- 2.Rf4#
- 1...fxe6
- 2.Rff1#
- 2.Rf2#
- 2.Rf4#
- 2.Rf6#
- 2.Rf7#
- 2.Rf8#
- 1...Bg1
- 2.Rf4#
- 1...f5
- 2.Rff1#
- 2.Rf2#
- 2.Rfxe3#
- 2.Rf4#
- 1...f6
- 2.Rff1#
- 2.Rf2#
- 2.Rf4#
- 2.Rxf6#
- 1...hxg3+!
- threat
- 1.Rff1?
- Keys
- 1.Rf6!
- threat
- 2.g3#
- 1...Rg5+
- 2.Sxg5#
- 1...Rxg2
- 2.Sg5#
- 1...Bxe5
- 2.Qa8#
- 1...exf6
- 2.Sd6#
- 1...Rf3
- 2.gxf3#
- 1...Rhg3
- 2.Rf4#
- 1...Rgg3
- 2.Rf4#
- 1...Bg1
- 2.Rf4#
- 1...Bg3
- 2.gxh3#
- 1...Bf4
- 2.Rxf4#
- threat
- 1.Rf6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 1
- Sets
- R(c);S_CUTB(a)::R1(E)
- R(i);S_CUTB(a)::R1(E)
- R(i);CHECK,N_GUARD::S(I),XR(i)
- B(a);N_GUARD::R1(E)
- B(a);N_GUARD::R1(E),XB(a)
- B(a);SBLOCK,XP(G)::QAB(F)
- P(d);N_GUARD::R1(A),XS(b)
- Tries
- Try
- R(E);
- Threat
- B(B)+P(D)
- Vars
- R(i);CHECK,N_GUARD::S(I),XR(i)
- R(i);N_GUARD,P_SPINR(i),XP(D)::S(I)
- B(a);SBLOCK,XP(G)::QAB(F)
- B(a);N_GUARD::R1(E),XB(a)
- R(c);S_CUTB(a)::R1(E)
- R(i);S_CUTB(a)::R1(E)
- B(a);N_GUARD::R1(E)
- B(a);S_CUTR(i)::B(B)+P(D),XR(c)
- Refutation
- R(c);
- Try
- R(E);
- Threat
- B(B)+P(D)
- Vars
- R(i);CHECK,N_GUARD::S(I),XR(i)
- R(i);N_GUARD,P_SPINR(i),XP(D)::S(I)
- B(a);SBLOCK,XP(G)::QAB(F)
- B(a);N_GUARD::R1(E),XB(a)
- R(c);S_CUTB(a)::R1(E)
- R(i);S_CUTB(a)::R1(E)
- B(a);N_GUARD::R1(E)
- B(a);S_CUTR(i)::B(B)+P(D),XR(c)
- Refutation
- R(c);
- Try
- R(E);CHECK,XS(b)
- Vars
- K(e);S_FLIGHT::S(J),XR(i)
- R(c);P_SPINR(c),XR(E)::B(B)+P(D)
- Refutation
- P(d);P_SPINP(d),XR(E)
- Try
- R(E);XP(h)
- Threat
- B(B)+P(D)
- Vars
- R(i);CHECK,N_GUARD::S(I),XR(i)
- R(i);N_GUARD,P_SPINR(i),XP(D)::S(I)
- B(a);SBLOCK,XP(G)::QAB(F)
- R(c);OGATE::P(D),XR(c)
- R(c);S_CUTB(a)::R1(E)
- R(i);S_CUTB(a)::R1(E)
- B(a);N_GUARD::R1(E)
- B(a);S_CUTR(i)::B(B)+P(D),XR(c)
- B(a);N_GUARD::R1(E),XB(a)
- Refutation
- R(i);XR(E)
- Try
- P(D);
- Threat
- DUALS(5)
- Vars
- R(i);CHECK,N_GUARD::S(I),XR(i)
- R(c);XP(D)::B(B)+R(E),DCHECK
- R(i);XP(D)::B(B)+R(E),DCHECK
- B(a);XP(D)::B(B)+R(E),DCHECK
- B(a);::B(B)+R(E),DCHECK
- Refutation
- P(f);CHECK,XP(D)
- Try
- Actual
- R(E);
- Threat
- B(B)+P(D)
- Vars
- R(i);CHECK,N_GUARD::S(I),XR(i)
- R(i);N_GUARD,P_SPINR(i),XP(D)::S(I)
- B(a);SBLOCK,XP(G)::QAB(F)
- P(g);N_GUARD,XR(E)::S(J)
- R(c);OGATE::P(D),XR(c)
- R(c);S_CUTB(a)::R1(E)
- R(i);S_CUTB(a)::R1(E)
- B(a);N_GUARD::R1(E)
- B(a);S_CUTR(i)::B(B)+P(D),XR(c)
- B(a);N_GUARD::R1(E),XB(a)
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).