MESON Chess Problem Database
Problem Display
PID: 206616 (3brrb1/6p1/1N4P1/2pp3Q/2pPkpPp/PPK1p2N/6P1/2BRRB1n w - - 0 1)
Stojnic, Dragan
Best Problems, 2020
#2
14 + 13
SOLUTION
- SOUND
- Sets
- 1...Re5
- 2.Qxe5#
- 1...Re6
- 2.Qxd5#
- 1...Re7
- 2.Sg5#
- 1...Rf5
- 2.Qxf5#
- 1...Rf6
- 2.Sg5#
- 1...Rf7
- 2.Qxd5#
- 1...Bg5
- 2.Sxg5#
- 1...Bxb6
- 2.Sg5#
- 1...Bf6
- 2.Qf5#
- 1...Bc7
- 2.Sg5#
- 1...Be7
- 2.Qe5#
- 1...Be6
- 2.Qe5#
- 1...Bf7
- 2.Qf5#
- 1...Bh7
- 2.Qxd5#
- 1...Sf2
- 2.Sxf2#
- 1...Sg3
- 2.Sf2#
- 1...e2
- 2.Rxe2#
- 1...cxb3
- 2.Bd3#
- 1...f3
- 2.Rxe3#
- 1...cxd4+
- 2.Rxd4#
- 1...Re5
- Tries
- 1.Sa4?
- threat
- 2.Sxc5#
- 1...cxd4+
- 2.Rxd4#
- 1...Bb6
- 2.Sg5#
- 1...Be7
- 2.Qe5#
- 1...Ba5+!
- threat
- 1.Sd7?
- threat
- 2.Sxc5#
- 1...cxd4+
- 2.Rxd4#
- 1...Bb6
- 2.Sg5#
- 1...Be7
- 2.Qe5#
- 1...Ba5+!
- threat
- 1.Bb2?
- 1...cxd4+
- 2.Rxd4#
- 1...Bxb6
- 2.Sg5#
- 1...cxb3
- 2.Bd3#
- 1...e2
- 2.Rxe2#
- 1...Re6
- 2.Qxd5#
- 1...Re5
- 2.Qxe5#
- 1...Re7
- 2.Sg5#
- 1...Rf5
- 2.Qxf5#
- 1...Rf6
- 2.Sg5#
- 1...Rf7
- 2.Qxd5#
- 1...Bg5
- 2.Sxg5#
- 1...Bf6
- 2.Qf5#
- 1...Bc7
- 2.Sg5#
- 1...Be7
- 2.Qe5#
- 1...Be6
- 2.Qe5#
- 1...Bf7
- 2.Qf5#
- 1...Bh7
- 2.Qxd5#
- 1...Sf2
- 2.Sxf2#
- 1...Sg3
- 2.Sf2#
- 1...f3!
- 1...cxd4+
- 1.Bd2?
- 1...Bxb6
- 2.Sg5#
- 1...cxb3
- 2.Bd3#
- 1...Re6
- 2.Qxd5#
- 1...Re5
- 2.Qxe5#
- 1...Re7
- 2.Sg5#
- 1...Rf5
- 2.Qxf5#
- 1...Rf6
- 2.Sg5#
- 1...Rf7
- 2.Qxd5#
- 1...Bg5
- 2.Sxg5#
- 1...Bf6
- 2.Qf5#
- 1...Bc7
- 2.Sg5#
- 1...Be7
- 2.Qe5#
- 1...Be6
- 2.Qe5#
- 1...Bf7
- 2.Qf5#
- 1...Bh7
- 2.Qxd5#
- 1...Sf2
- 2.Sxf2#
- 1...Sg3
- 2.Sf2#
- 1...e2
- 2.Rxe2#
- 1...f3
- 2.Rxe3#
- 1...cxd4+!
- 1...Bxb6
- 1.Bxe3?
- threat
- 2.Bc1#
- 2.Bg1#
- 2.Bd2#
- 2.Bf2#
- 2.Bxf4#
- 1...cxd4+
- 2.Bxd4#
- 2.Rxd4#
- 1...Sf2
- 2.Sxf2#
- 2.Bc1#
- 2.Bd2#
- 2.Bxf2#
- 2.Bxf4#
- 1...Sg3
- 2.Sf2#
- 1...f3
- 2.Bc1#
- 2.Bg1#
- 2.Bd2#
- 2.Bf2#
- 2.Bf4#
- 2.Bg5#
- 2.Bh6#
- 1...fxe3!
- threat
- 1.Be2?
- threat
- 2.Bf3#
- 1...cxd4+
- 2.Rxd4#
- 1...f3!
- threat
- 1.Bxc4?
- threat
- 2.Bd3#
- 1...cxd4+
- 2.Rxd4#
- 1...Sf2
- 2.Sxf2#
- 1...dxc4!
- threat
- 1.Rd2?
- 1...cxd4+
- 2.Rxd4#
- 1...Bxb6
- 2.Sg5#
- 1...cxb3
- 2.Bd3#
- 1...e2
- 2.Rexe2#
- 2.Rdxe2#
- 1...Re6
- 2.Qxd5#
- 1...Re5
- 2.Qxe5#
- 1...Re7
- 2.Sg5#
- 1...Rf5
- 2.Qxf5#
- 1...Rf6
- 2.Sg5#
- 1...Rf7
- 2.Qxd5#
- 1...Bg5
- 2.Sxg5#
- 1...Bf6
- 2.Qf5#
- 1...Bc7
- 2.Sg5#
- 1...Be7
- 2.Qe5#
- 1...Be6
- 2.Qe5#
- 1...Bf7
- 2.Qf5#
- 1...Bh7
- 2.Qxd5#
- 1...Sf2
- 2.Sxf2#
- 1...Sg3
- 2.Sf2#
- 1...f3!
- 1...cxd4+
- 1.Rd3?
- 1...cxd4+
- 2.Rxd4#
- 1...Bxb6
- 2.Sg5#
- 1...cxd3
- 2.Bxd3#
- 1...f3
- 2.Rexe3#
- 2.Rdxe3#
- 1...Re5
- 2.Qxe5#
- 1...Re6
- 2.Qxd5#
- 1...Re7
- 2.Sg5#
- 1...Rf5
- 2.Qxf5#
- 1...Rf6
- 2.Sg5#
- 1...Rf7
- 2.Qxd5#
- 1...Bg5
- 2.Sxg5#
- 1...Bf6
- 2.Qf5#
- 1...Bc7
- 2.Sg5#
- 1...Be7
- 2.Qe5#
- 1...Be6
- 2.Qe5#
- 1...Bf7
- 2.Qf5#
- 1...Bh7
- 2.Qxd5#
- 1...Sf2
- 2.Sxf2#
- 1...Sg3
- 2.Sf2#
- 1...e2
- 2.Rxe2#
- 1...cxb3!
- 1...cxd4+
- 1.Re2?
- 1...cxd4+
- 2.Rxd4#
- 1...Bxb6
- 2.Sg5#
- 1...f3
- 2.Rxe3#
- 1...Re5
- 2.Qxe5#
- 1...Re6
- 2.Qxd5#
- 1...Re7
- 2.Sg5#
- 1...Rf5
- 2.Qxf5#
- 1...Rf6
- 2.Sg5#
- 1...Rf7
- 2.Qxd5#
- 1...Bg5
- 2.Sxg5#
- 1...Bf6
- 2.Qf5#
- 1...Bc7
- 2.Sg5#
- 1...Be7
- 2.Qe5#
- 1...Be6
- 2.Qe5#
- 1...Bf7
- 2.Qf5#
- 1...Bh7
- 2.Qxd5#
- 1...Sf2
- 2.Sxf2#
- 1...Sg3
- 2.Sf2#
- 1...cxb3!
- 1...cxd4+
- 1.bxc4?
- threat
- 2.Bd3#
- 1...cxd4+
- 2.Rxd4#
- 1...Sf2
- 2.Sxf2#
- 1...e2
- 2.Rxe2#
- 1...dxc4!
- threat
- 1.b4?
- 1...cxd4+
- 2.Rxd4#
- 1...Bxb6
- 2.Sg5#
- 1...f3
- 2.Rxe3#
- 1...Re5
- 2.Qxe5#
- 1...Re6
- 2.Qxd5#
- 1...Re7
- 2.Sg5#
- 1...Rf5
- 2.Qxf5#
- 1...Rf6
- 2.Sg5#
- 1...Rf7
- 2.Qxd5#
- 1...Bg5
- 2.Sxg5#
- 1...Bf6
- 2.Qf5#
- 1...Bc7
- 2.Sg5#
- 1...Be7
- 2.Qe5#
- 1...Be6
- 2.Qe5#
- 1...Bf7
- 2.Qf5#
- 1...Bh7
- 2.Qxd5#
- 1...Sf2
- 2.Sxf2#
- 1...Sg3
- 2.Sf2#
- 1...e2
- 2.Rxe2#
- 1...cxb4+!
- 1...cxd4+
- 1.Sa4?
- Keys
- 1.a4!
- 1...cxd4+
- 2.Rxd4#
- 1...Bxb6
- 2.Sg5#
- 1...cxb3
- 2.Bd3#
- 1...f3
- 2.Rxe3#
- 1...Re5
- 2.Qxe5#
- 1...Re6
- 2.Qxd5#
- 1...Re7
- 2.Sg5#
- 1...Rf5
- 2.Qxf5#
- 1...Rf6
- 2.Sg5#
- 1...Rf7
- 2.Qxd5#
- 1...Bg5
- 2.Sxg5#
- 1...Bf6
- 2.Qf5#
- 1...Bc7
- 2.Sg5#
- 1...Be7
- 2.Qe5#
- 1...Be6
- 2.Qe5#
- 1...Bf7
- 2.Qf5#
- 1...Bh7
- 2.Qxd5#
- 1...Sf2
- 2.Sxf2#
- 1...Sg3
- 2.Sf2#
- 1...e2
- 2.Rxe2#
- 1...cxd4+
- 1.a4!
FEATURES
- Static
- TYPE = WAITER
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- R(k);N_GUARD::QAR1(L),XR(k)
- R(k);S_CUTB(m)::QAB1(L),XP(h)
- R(k);S_CUTB(j)::S(I)
- R(l);N_GUARD::QAB1(L),XR(l)
- R(l);S_CUTB(j)::S(I)
- R(l);S_CUTB(m)::QAB1(L),XP(h)
- B(j);N_GUARD::S(I),XB(j)
- B(j);N_GUARD,XS(M)::S(I)
- B(j);P_PINP(J),S_CUTR(l)::QAB1(L)
- B(j);N_GUARD::S(I)
- B(j);S_CUTR(k)::QAR1(L)
- B(m);S_CUTR(k)::QAR1(L)
- B(m);S_CUTR(l)::QAB1(L)
- B(m);N_GUARD::QAB1(L),XP(h)
- S(a);N_GUARD::S(I),XS(a)
- S(a);N_GUARD::S(I)
- P(b);OGATEB::R(C),XP(b)
- P(c);N_GUARD,XP(G)::B(D)
- P(e);N_GUARD::R1(C),XP(b)
- P(g);CHECK,OGATE,XP(J)::R1(B),XP(g)
- Tries
- Try
- S(M);
- Threat
- S(M),XP(g)
- Vars
- P(g);CHECK,OGATE,XP(J)::R1(B),XP(g)
- B(j);N_GUARD::S(I)
- B(j);S_CUTR(k)::QAR1(L)
- Refutation
- B(j);CHECK
- Try
- S(M);
- Threat
- S(M),XP(g)
- Vars
- P(g);CHECK,OGATE,XP(J)::R1(B),XP(g)
- B(j);N_GUARD::S(I)
- B(j);S_CUTR(k)::QAR1(L)
- Refutation
- B(j);CHECK
- Try
- B(A);
- Vars
- P(g);CHECK,OGATE,XP(J)::R1(B),XP(g)
- B(j);N_GUARD,XS(M)::S(I)
- P(c);N_GUARD,XP(G)::B(D)
- P(b);OGATEB::R(C),XP(b)
- R(k);S_CUTB(m)::QAB1(L),XP(h)
- R(k);N_GUARD::QAR1(L),XR(k)
- R(k);S_CUTB(j)::S(I)
- R(l);N_GUARD::QAB1(L),XR(l)
- R(l);S_CUTB(j)::S(I)
- R(l);S_CUTB(m)::QAB1(L),XP(h)
- B(j);N_GUARD::S(I),XB(j)
- B(j);P_PINP(J),S_CUTR(l)::QAB1(L)
- B(j);N_GUARD::S(I)
- B(j);S_CUTR(k)::QAR1(L)
- B(m);S_CUTR(k)::QAR1(L)
- B(m);S_CUTR(l)::QAB1(L)
- B(m);N_GUARD::QAB1(L),XP(h)
- S(a);N_GUARD::S(I),XS(a)
- S(a);N_GUARD::S(I)
- Refutation
- P(e);
- Try
- B(A);
- Vars
- B(j);N_GUARD,XS(M)::S(I)
- P(c);N_GUARD,XP(G)::B(D)
- R(k);S_CUTB(m)::QAB1(L),XP(h)
- R(k);N_GUARD::QAR1(L),XR(k)
- R(k);S_CUTB(j)::S(I)
- R(l);N_GUARD::QAB1(L),XR(l)
- R(l);S_CUTB(j)::S(I)
- R(l);S_CUTB(m)::QAB1(L),XP(h)
- B(j);N_GUARD::S(I),XB(j)
- B(j);P_PINP(J),S_CUTR(l)::QAB1(L)
- B(j);N_GUARD::S(I)
- B(j);S_CUTR(k)::QAR1(L)
- B(m);S_CUTR(k)::QAR1(L)
- B(m);S_CUTR(l)::QAB1(L)
- B(m);N_GUARD::QAB1(L),XP(h)
- S(a);N_GUARD::S(I),XS(a)
- S(a);N_GUARD::S(I)
- P(b);OGATEB::R(C),XP(b)
- P(e);N_GUARD::R1(C),XP(b)
- Refutation
- P(g);CHECK,XP(J)
- Try
- B(A);XP(b)
- Threat
- DUALS(5)
- Vars
- S(a);N_GUARD::S(I)
- Refutation
- P(e);P_SPINP(e),XB(A)
- Try
- B(D);N_PINP(b)
- Threat
- B(D)
- Vars
- P(g);CHECK,OGATE,XP(J)::R1(B),XP(g)
- Refutation
- P(e);
- Try
- B(D);XP(c)
- Threat
- B(D)
- Vars
- P(g);CHECK,OGATE,XP(J)::R1(B),XP(g)
- S(a);N_GUARD::S(I),XS(a)
- Refutation
- P(h);XB(D)
- Try
- R(B);
- Vars
- P(g);CHECK,OGATE,XP(J)::R1(B),XP(g)
- B(j);N_GUARD,XS(M)::S(I)
- P(c);N_GUARD,XP(G)::B(D)
- R(k);S_CUTB(m)::QAB1(L),XP(h)
- R(k);N_GUARD::QAR1(L),XR(k)
- R(k);S_CUTB(j)::S(I)
- R(l);N_GUARD::QAB1(L),XR(l)
- R(l);S_CUTB(j)::S(I)
- R(l);S_CUTB(m)::QAB1(L),XP(h)
- B(j);N_GUARD::S(I),XB(j)
- B(j);P_PINP(J),S_CUTR(l)::QAB1(L)
- B(j);N_GUARD::S(I)
- B(j);S_CUTR(k)::QAR1(L)
- B(m);S_CUTR(k)::QAR1(L)
- B(m);S_CUTR(l)::QAB1(L)
- B(m);N_GUARD::QAB1(L),XP(h)
- S(a);N_GUARD::S(I),XS(a)
- S(a);N_GUARD::S(I)
- Refutation
- P(e);
- Try
- R(B);
- Vars
- P(g);CHECK,OGATE,XP(J)::R1(B),XP(g)
- B(j);N_GUARD,XS(M)::S(I)
- P(c);OGATE,XR(B)::B(D),XP(c)
- R(k);N_GUARD::QAR1(L),XR(k)
- R(k);S_CUTB(m)::QAB1(L),XP(h)
- R(k);S_CUTB(j)::S(I)
- R(l);N_GUARD::QAB1(L),XR(l)
- R(l);S_CUTB(j)::S(I)
- R(l);S_CUTB(m)::QAB1(L),XP(h)
- B(j);N_GUARD::S(I),XB(j)
- B(j);P_PINP(J),S_CUTR(l)::QAB1(L)
- B(j);N_GUARD::S(I)
- B(j);S_CUTR(k)::QAR1(L)
- B(m);S_CUTR(k)::QAR1(L)
- B(m);S_CUTR(l)::QAB1(L)
- B(m);N_GUARD::QAB1(L),XP(h)
- S(a);N_GUARD::S(I),XS(a)
- S(a);N_GUARD::S(I)
- P(b);OGATEB::R(C),XP(b)
- Refutation
- P(c);XP(G)
- Try
- R(C);
- Vars
- P(g);CHECK,OGATE,XP(J)::R1(B),XP(g)
- B(j);N_GUARD,XS(M)::S(I)
- P(e);N_GUARD::R1(C),XP(b)
- R(k);N_GUARD::QAR1(L),XR(k)
- R(k);S_CUTB(m)::QAB1(L),XP(h)
- R(k);S_CUTB(j)::S(I)
- R(l);N_GUARD::QAB1(L),XR(l)
- R(l);S_CUTB(j)::S(I)
- R(l);S_CUTB(m)::QAB1(L),XP(h)
- B(j);N_GUARD::S(I),XB(j)
- B(j);P_PINP(J),S_CUTR(l)::QAB1(L)
- B(j);N_GUARD::S(I)
- B(j);S_CUTR(k)::QAR1(L)
- B(m);S_CUTR(k)::QAR1(L)
- B(m);S_CUTR(l)::QAB1(L)
- B(m);N_GUARD::QAB1(L),XP(h)
- S(a);N_GUARD::S(I),XS(a)
- S(a);N_GUARD::S(I)
- Refutation
- P(c);XP(G)
- Try
- P(G);XP(c)
- Threat
- B(D)
- Vars
- P(g);CHECK,OGATE,XP(J)::R1(B),XP(g)
- S(a);N_GUARD::S(I),XS(a)
- P(b);OGATEB::R(C),XP(b)
- Refutation
- P(h);XP(G)
- Try
- P(G);
- Vars
- P(g);CHECK,OGATE,XP(J)::R1(B),XP(g)
- B(j);N_GUARD,XS(M)::S(I)
- P(e);N_GUARD::R1(C),XP(b)
- R(k);N_GUARD::QAR1(L),XR(k)
- R(k);S_CUTB(m)::QAB1(L),XP(h)
- R(k);S_CUTB(j)::S(I)
- R(l);N_GUARD::QAB1(L),XR(l)
- R(l);S_CUTB(j)::S(I)
- R(l);S_CUTB(m)::QAB1(L),XP(h)
- B(j);N_GUARD::S(I),XB(j)
- B(j);P_PINP(J),S_CUTR(l)::QAB1(L)
- B(j);N_GUARD::S(I)
- B(j);S_CUTR(k)::QAR1(L)
- B(m);S_CUTR(k)::QAR1(L)
- B(m);S_CUTR(l)::QAB1(L)
- B(m);N_GUARD::QAB1(L),XP(h)
- S(a);N_GUARD::S(I),XS(a)
- S(a);N_GUARD::S(I)
- P(b);OGATEB::R(C),XP(b)
- Refutation
- P(g);CHECK,XP(G)
- Try
- Actual
- P(F);
- Vars
- P(g);CHECK,OGATE,XP(J)::R1(B),XP(g)
- B(j);N_GUARD,XS(M)::S(I)
- P(c);N_GUARD,XP(G)::B(D)
- P(e);N_GUARD::R1(C),XP(b)
- R(k);N_GUARD::QAR1(L),XR(k)
- R(k);S_CUTB(m)::QAB1(L),XP(h)
- R(k);S_CUTB(j)::S(I)
- R(l);N_GUARD::QAB1(L),XR(l)
- R(l);S_CUTB(j)::S(I)
- R(l);S_CUTB(m)::QAB1(L),XP(h)
- B(j);N_GUARD::S(I),XB(j)
- B(j);P_PINP(J),S_CUTR(l)::QAB1(L)
- B(j);N_GUARD::S(I)
- B(j);S_CUTR(k)::QAR1(L)
- B(m);S_CUTR(k)::QAR1(L)
- B(m);S_CUTR(l)::QAB1(L)
- B(m);N_GUARD::QAB1(L),XP(h)
- S(a);N_GUARD::S(I),XS(a)
- S(a);N_GUARD::S(I)
- P(b);OGATEB::R(C),XP(b)
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).