MESON Chess Problem Database
Problem Display
PID: 265668 (5B1K/p2p4/1p3p2/3N1Q2/R1nkN3/2p4R/nP2Pb2/3r4 w - - 0 1)
Piliczewski, Bogusz
Skrzek, Janusz
Variantim, 2022
#2
9 + 10
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Rd3#
- 1...Rb1
- 2.Rd3#
- 1...Rc1
- 2.Rd3#
- 1...Re1
- 2.Rd3#
- 1...Rf1
- 2.Rd3#
- 1...Rg1
- 2.Rd3#
- 1...Rd3
- 2.Rxd3#
- 1...Sc1
- 2.bxc3#
- 1...Sb4
- 2.bxc3#
- 1...b5
- 2.Bc5#
- 1...Ra1
- Tries
- 1.Sd2?
- threat
- 2.Sb3#
- 2.Sf3#
- 2.Rd3#
- 2.Rxc4#
- 2.Qe4#
- 1...cxd2
- 2.Rd3#
- 1...d6
- 2.Sb3#
- 2.Rxc4#
- 1...Rh1
- 2.Sb3#
- 2.Sf3#
- 2.Rxc4#
- 2.Qe4#
- 1...Be3
- 2.Sb3#
- 2.Sf3#
- 2.Rxc4#
- 2.Qe4#
- 1...Bg3
- 2.Sb3#
- 2.Sf3#
- 2.Rxc4#
- 2.Qe4#
- 2.e3#
- 1...Sc1
- 2.Sf3#
- 2.Rxc4#
- 2.Qe4#
- 2.bxc3#
- 1...Sb4
- 2.Sb3#
- 2.Sf3#
- 2.Qe4#
- 2.bxc3#
- 1...b5
- 2.Sb3#
- 2.Sf3#
- 2.Rd3#
- 2.Qe4#
- 1...Rxd2!
- threat
- 1.Sxf2?
- threat
- 2.Rh4#
- 2.Qe4#
- 2.e3#
- 1...Re1
- 2.Rd3#
- 2.Rh4#
- 2.Qe4#
- 1...Rg1
- 2.Rd3#
- 2.Qe4#
- 2.e3#
- 1...Rh1
- 2.Qe4#
- 2.e3#
- 1...Rd3
- 2.Rxd3#
- 2.Rh4#
- 2.Qe4#
- 1...Sb4
- 2.Rh4#
- 2.Qe4#
- 2.bxc3#
- 1...d6!
- threat
- 1.Sexc3?
- threat
- 2.Sb5#
- 2.Qe4#
- 2.Qf4#
- 2.Qxf6#
- 1...Sxc3
- 2.bxc3#
- 1...Be3
- 2.Sb5#
- 2.Qe4#
- 2.Qxf6#
- 1...Bg3
- 2.Sb5#
- 2.Qe4#
- 2.e3#
- 1...Bh4
- 2.Sb5#
- 2.Rxh4#
- 2.Qe4#
- 2.Qf4#
- 2.e3#
- 1...Sb4
- 2.Sb5#
- 2.Qe4#
- 2.Qf4#
- 1...b5
- 2.Sxb5#
- 2.Qe4#
- 2.Qf4#
- 2.Qxf6#
- 1...a6
- 2.Qe4#
- 2.Qf4#
- 2.Qxf6#
- 1...d6!
- threat
- 1.Sg3?
- threat
- 2.Rh4#
- 2.Qe4#
- 1...Bxg3
- 2.e3#
- 1...Rh1
- 2.Qe4#
- 1...Be3
- 2.Qe4#
- 1...d6!
- threat
- 1.Sc5?
- threat
- 2.Sb3#
- 2.Qe4#
- 1...d6
- 2.Sb3#
- 2.Se6#
- 1...Sc1
- 2.Qe4#
- 2.bxc3#
- 1...bxc5!
- threat
- 1.Sg5?
- threat
- 2.Sf3#
- 2.Qe4#
- 1...d6
- 2.Se6#
- 1...Rd3
- 2.Rxd3#
- 2.Qe4#
- 1...fxg5!
- threat
- 1.Sexf6?
- threat
- 2.Qe4#
- 2.Qf4#
- 1...Be3
- 2.Qe4#
- 1...Bg3
- 2.Qe4#
- 2.e3#
- 1...d6!
- threat
- 1.Sdxc3?
- threat
- 2.Sb5#
- 2.Qd5#
- 2.Qxf6#
- 1...Sxc3
- 2.bxc3#
- 1...Bh4
- 2.Sb5#
- 2.Qd5#
- 1...Sb4
- 2.Sb5#
- 1...b5
- 2.Sxb5#
- 2.Bc5#
- 2.Qc5#
- 2.Qd5#
- 2.Qxf6#
- 1...a6
- 2.Qd5#
- 2.Qxf6#
- 1...d5
- 2.Sb5#
- 2.Qxd5#
- 2.Qxf6#
- 1...Bg3!
- threat
- 1.Se3?
- threat
- 2.Sc2#
- 2.Rxc4#
- 2.Qd5#
- 1...Bg3
- 2.Sc2#
- 1...Rc1
- 2.Rxc4#
- 2.Qd5#
- 1...Rd2
- 2.Rxc4#
- 2.Qd5#
- 1...Sb4
- 2.bxc3#
- 1...c2
- 2.Sxc2#
- 2.Rxc4#
- 2.Qd5#
- 1...b5
- 2.Sc2#
- 2.Bc5#
- 2.Qd5#
- 1...d5
- 2.Sc2#
- 2.Qxd5#
- 1...Bxe3!
- threat
- 1.Sb4?
- threat
- 2.Sc2#
- 2.Qd5#
- 1...Sxb4
- 2.bxc3#
- 1...Bg3
- 2.Sc2#
- 1...Se3
- 2.Sc2#
- 2.Sc6#
- 1...Rc1
- 2.Rd3#
- 2.Qd5#
- 1...Rd2
- 2.Qd5#
- 1...c2
- 2.Sxc2#
- 2.Qd5#
- 1...d5
- 2.Sc2#
- 2.Sc6#
- 2.Qxd5#
- 1...Se5!
- threat
- 1.Sf4?
- threat
- 2.Qd5#
- 1...Sb4
- 2.bxc3#
- 1...d5
- 2.Se6#
- 2.Qxd5#
- 1...Bg3!
- threat
- 1.Sxb6?
- threat
- 2.Bc5#
- 2.Rxc4#
- 2.Qd5#
- 1...Bg3
- 2.Bc5#
- 1...Sb4
- 2.Bc5#
- 2.bxc3#
- 1...d5
- 2.Bc5#
- 2.Qxd5#
- 1...d6
- 2.Rxc4#
- 2.Qd5#
- 1...axb6!
- threat
- 1.Sdxf6?
- threat
- 2.Qd5#
- 1...Sb4
- 2.bxc3#
- 1...d5
- 2.Qxd5#
- 1...Bg3!
- threat
- 1.Sc7?
- threat
- 2.Sb5#
- 2.Qd5#
- 1...Sb4
- 2.Sb5#
- 2.bxc3#
- 1...b5
- 2.Sxb5#
- 2.Bc5#
- 2.Qd5#
- 1...a6
- 2.Qd5#
- 1...d5
- 2.Sb5#
- 2.Se6#
- 2.Qxd5#
- 1...Bg3!
- threat
- 1.Se7?
- threat
- 2.Qd5#
- 1...Sb4
- 2.bxc3#
- 1...d5
- 2.Sc6#
- 2.Qxd5#
- 1...Bg3!
- threat
- 1.b3?
- threat
- 2.Rxc4#
- 1...b5
- 2.Bc5#
- 1...Sb4!
- threat
- 1.Sd2?
- Keys
- 1.Sd6!
- threat
- 2.Sb5#
- 2.Rxc4#
- 1...Kc5
- 2.Rxc4#
- 1...Sb4
- 2.Sb5#
- 1...b5
- 2.Sxb5#
- 1...a6
- 2.Rxc4#
- threat
- 1.Sd6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 2
- REMOVED MATES = 8
- Sets
- R(a);N_GUARD::R1(C)
- R(a);N_GUARD::R1(C),XR(a)
- S(b);N_GUARD::P(A),XP(d)
- S(b);N_GUARD,N_SPINS(e)::P(A),XP(d)
- P(g);N_GUARD::B(H)
- Tries
- Try
- S(E);
- Threat
- DUALS(5)
- Vars
- P(d);XS(E)::R1(C)
- Refutation
- R(a);XS(E)
- Try
- S(E);XB(c)
- Threat
- DUALS(3)
- Refutation
- P(j);
- Try
- S(E);XP(d)
- Threat
- DUALS(4)
- Vars
- S(b);OGATE,XS(E)::P(A),XS(b)
- Refutation
- P(j);
- Try
- S(E);
- Threat
- DUALS(2)
- Vars
- B(c);N_GUARD,XS(E)::P(B)
- R(a);P_PINR(C)::QAR1(G)
- B(c);::QAR1(G)
- Refutation
- P(j);
- Try
- S(E);
- Threat
- DUALS(2)
- Refutation
- P(g);XS(E)
- Try
- S(E);
- Threat
- DUALS(2)
- Vars
- P(j);N_GUARD::S(E)
- Refutation
- P(h);XS(E)
- Try
- S(E);XP(h)
- Threat
- DUALS(2)
- Vars
- B(c);::QAR1(G)
- Refutation
- P(j);
- Try
- S(F);XP(d)
- Threat
- DUALS(3)
- Vars
- S(b);OGATE,XS(F)::P(A),XS(b)
- S(b);N_SPINS(e)::S(F)
- Refutation
- B(c);
- Try
- S(F);
- Threat
- DUALS(3)
- Vars
- B(c);::S(F)
- S(b);N_GUARD,N_SPINS(e)::P(A),XP(d)
- Refutation
- B(c);XS(F)
- Try
- S(F);N_PINS(e)
- Threat
- DUALS(2)
- Vars
- S(b);N_GUARD,XS(F)::P(A),XP(d)
- B(c);::S(F)
- R(a);::QAR1(G)
- Refutation
- S(e);
- Try
- S(F);
- Threat
- QAR1(G)
- Vars
- S(b);N_GUARD,N_SPINS(e)::P(A),XP(d)
- Refutation
- B(c);
- Try
- S(F);XP(g)
- Threat
- DUALS(3)
- Vars
- B(c);::B(H)
- Refutation
- P(i);XS(F)
- Try
- S(F);XP(h)
- Threat
- QAR1(G)
- Vars
- S(b);N_GUARD,N_SPINS(e)::P(A),XP(d)
- P(j);::QAR1(G),XP(j)
- Refutation
- B(c);
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- P(i);::QAR1(G)
- Refutation
- B(c);
- Try
- S(F);
- Threat
- QAR1(G)
- Vars
- S(b);N_GUARD,N_SPINS(e)::P(A),XP(d)
- Refutation
- B(c);
- Try
- P(A);
- Threat
- R1(D),XS(e)
- Vars
- P(g);N_GUARD::B(H)
- Refutation
- S(b);N_SPINS(e)
- Try
- Actual
- S(E);
- Threat
- DUALS(2)
- Vars
- K(f);N_SPINS(e),S_FLIGHT::R1(D),XS(e)
- S(b);N_SPINS(e)::S(E)
- P(g);::S(E),XP(g)
- P(i);::R1(D),XS(e)
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Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
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