MESON Chess Problem Database
Problem Display
PID: 272593 (q5R1/1p1R1n2/1p1N4/1Pk5/P1P1B3/2Pp4/KN2bPP1/6Br w - - 0 1)
Djurasevic, Branislav
Tarnawiecki, Antonio
Variantim, 2023
#2
13 + 8
SOLUTION
- SOUND
- Sets
- 1...Qxa4+
- 2.Sxa4#
- 1...Qa5
- 2.Sxb7#
- 2.Rc8#
- 1...Qa6
- 2.Rc8#
- 1...Qa7
- 2.Rc8#
- 1...Qc8
- 2.Rxc8#
- 1...Qd8
- 2.Sxb7#
- 1...Qe8
- 2.Sxb7#
- 1...Qf8
- 2.Sxb7#
- 1...Qxg8
- 2.Sxb7#
- 1...Rh2
- 2.f3#
- 2.f4#
- 1...Rh3
- 2.f3#
- 1...Rh4
- 2.f3#
- 2.f4#
- 1...Rh5
- 2.f3#
- 2.f4#
- 1...Rh6
- 2.f3#
- 2.f4#
- 1...Rh7
- 2.f3#
- 2.f4#
- 1...Rh8
- 2.f3#
- 2.f4#
- 1...Bd1
- 2.Sxd3#
- 1...Bf3
- 2.Sxd3#
- 1...Bg4
- 2.Sxd3#
- 1...Bh5
- 2.Sxd3#
- 1...Sg5
- 2.Rxg5#
- 1...Sxd6
- 2.Rc7#
- 1...Sd8
- 2.Rg5#
- 1...Sh8
- 2.Rg5#
- 1...Qxa4+
- Tries
- 1.Sc8?
- threat
- 2.Rd5#
- 2.Rc7#
- 1...Qxc8
- 2.Rd5#
- 2.Rxc8#
- 1...Qb8
- 2.Rd5#
- 1...Rh5
- 2.Rc7#
- 2.f3#
- 2.f4#
- 1...Rh6
- 2.Rd5#
- 2.f3#
- 2.f4#
- 1...Se5
- 2.Rd5#
- 1...Sd6
- 2.Rc7#
- 1...Sd8
- 2.Rd5#
- 2.Rg5#
- 1...Qxa4+!
- threat
- 1.Bxd3?
- threat
- 2.Se4#
- 1...Qxa4+
- 2.Sxa4#
- 1...Bxd3
- 2.Sxd3#
- 1...Sxd6
- 2.Rc7#
- 1...Qe8
- 2.Sxb7#
- 1...Rh4
- 2.f4#
- 1...Sg5
- 2.Rxg5#
- 1...Bf3!
- threat
- 1.Bf3?
- threat
- 2.Se4#
- 1...Qxa4+
- 2.Sxa4#
- 1...Bxf3
- 2.Sxd3#
- 1...Sxd6
- 2.Rc7#
- 1...Qe8
- 2.Sxb7#
- 1...Sg5
- 2.Rxg5#
- 1...Rh4!
- threat
- 1.Bd5?
- threat
- 2.Se4#
- 1...Qxa4+
- 2.Sxa4#
- 1...Sxd6
- 2.Rc7#
- 1...Qe8
- 2.Sxb7#
- 1...Rh4
- 2.f4#
- 1...Bf3
- 2.Sxd3#
- 1...Sg5!
- threat
- 1.Bf5?
- threat
- 2.Se4#
- 1...Qxa4+
- 2.Sxa4#
- 1...Sxd6
- 2.Rc7#
- 1...Qe8
- 2.Sxb7#
- 1...Rh4
- 2.f4#
- 1...Bf3
- 2.Sxd3#
- 1...Sg5!
- threat
- 1.Bc6?
- threat
- 2.Se4#
- 1...Qxa4+
- 2.Sxa4#
- 1...Qe8
- 2.Sxb7#
- 1...Rh4
- 2.f4#
- 1...Bf3
- 2.Sxd3#
- 1...Sg5
- 2.Rxg5#
- 1...Sxd6!
- threat
- 1.Bg6?
- threat
- 2.Se4#
- 1...Qxa4+
- 2.Sxa4#
- 1...Sxd6
- 2.Rc7#
- 1...Qe8
- 2.Sxb7#
- 1...Rh4
- 2.f4#
- 1...Bf3
- 2.Sxd3#
- 1...Sg5!
- threat
- 1.Bxb7?
- threat
- 2.Se4#
- 1...Qxa4+
- 2.Sxa4#
- 1...Qxb7
- 2.Sxb7#
- 1...Sxd6
- 2.Rc7#
- 1...Rh4
- 2.f4#
- 1...Bf3
- 2.Sxd3#
- 1...Sg5
- 2.Rxg5#
- 1...Qe8!
- threat
- 1.Rg5+?
- 1...Se5
- 2.Rxe5#
- 1...Sxg5!
- 1...Se5
- 1.Rxa8?
- threat
- 2.Sxb7#
- 2.Rc8#
- 1...Sxd6
- 2.Rc7#
- 1...Rh8
- 2.Sxb7#
- 2.f3#
- 2.f4#
- 1...Se5
- 2.Sxb7#
- 1...Sd8!
- threat
- 1.a5?
- threat
- 2.Sa4#
- 1...Sxd6
- 2.Rc7#
- 1...Bd1
- 2.Sxd3#
- 1...Qxa5+!
- threat
- 1.Sc8?
- Keys
- 1.Bh7!
- threat
- 2.Se4#
- 1...Qxa4+
- 2.Sxa4#
- 1...Sxd6
- 2.Rc7#
- 1...Qe8
- 2.Sxb7#
- 1...Rh4
- 2.f4#
- 1...Bf3
- 2.Sxd3#
- 1...Sg5
- 2.Rxg5#
- threat
- 1.Bh7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 12
- Sets
- Q(h);CHECK,XP(G)::S(C),XQ(h)
- Q(h);N_GUARD::R(M)
- Q(h);N_GUARD,N_PINP(G)::R(M),XQ(h)
- Q(h);N_GUARD,N_PINP(G)::S(K),XP(f)
- Q(h);N_GUARD,N_PINP(G),XR(M)::S(K),XP(f)
- R(a);N_GUARD::B(A)+P(D)
- B(b);N_GUARD::S(C),XP(c)
- S(g);N_GUARD::R(M),XS(g)
- S(g);SBLOCK,XS(K)::R(L)
- S(g);N_GUARD::R(M)
- Tries
- Try
- S(K);
- Threat
- DUALS(2)
- Vars
- Q(h);N_PINP(G)::R1(L)
- S(g);::R1(L)
- S(g);::R(L)
- Refutation
- Q(h);CHECK,XP(G)
- Try
- B(I);XP(c)
- Threat
- S(K)
- Vars
- Q(h);CHECK,XP(G)::S(C),XQ(h)
- B(b);XB(I)::S(C),XB(b)
- S(g);SBLOCK,XS(K)::R(L)
- Q(h);N_GUARD,N_PINP(G)::S(K),XP(f)
- R(a);N_GUARD::B(A)+P(D)
- S(g);N_GUARD::R(M),XS(g)
- Refutation
- B(b);
- Try
- B(I);
- Threat
- S(K)
- Vars
- Q(h);CHECK,XP(G)::S(C),XQ(h)
- B(b);N_GUARD,XB(I)::S(C),XP(c)
- S(g);SBLOCK,XS(K)::R(L)
- Q(h);N_GUARD,N_PINP(G)::S(K),XP(f)
- S(g);N_GUARD::R(M),XS(g)
- Refutation
- R(a);
- Try
- B(I);
- Threat
- S(K)
- Vars
- Q(h);CHECK,XP(G)::S(C),XQ(h)
- S(g);SBLOCK,XS(K)::R(L)
- Q(h);N_GUARD,N_PINP(G)::S(K),XP(f)
- R(a);N_GUARD::B(A)+P(D)
- B(b);N_GUARD::S(C),XP(c)
- Refutation
- S(g);
- Try
- B(I);
- Threat
- S(K)
- Vars
- Q(h);CHECK,XP(G)::S(C),XQ(h)
- S(g);SBLOCK,XS(K)::R(L)
- Q(h);N_GUARD,N_PINP(G)::S(K),XP(f)
- R(a);N_GUARD::B(A)+P(D)
- B(b);N_GUARD::S(C),XP(c)
- Refutation
- S(g);
- Try
- B(I);
- Threat
- S(K)
- Vars
- Q(h);CHECK,XP(G)::S(C),XQ(h)
- Q(h);N_GUARD,N_PINP(G)::S(K),XP(f)
- R(a);N_GUARD::B(A)+P(D)
- B(b);N_GUARD::S(C),XP(c)
- S(g);N_GUARD::R(M),XS(g)
- Refutation
- S(g);XS(K)
- Try
- B(I);
- Threat
- S(K)
- Vars
- Q(h);CHECK,XP(G)::S(C),XQ(h)
- S(g);SBLOCK,XS(K)::R(L)
- Q(h);N_GUARD,N_PINP(G)::S(K),XP(f)
- R(a);N_GUARD::B(A)+P(D)
- B(b);N_GUARD::S(C),XP(c)
- Refutation
- S(g);
- Try
- B(I);XP(f)
- Threat
- S(K)
- Vars
- Q(h);CHECK,XP(G)::S(C),XQ(h)
- Q(h);N_PINP(G),XB(I)::S(K),XQ(h)
- S(g);SBLOCK,XS(K)::R(L)
- R(a);N_GUARD::B(A)+P(D)
- B(b);N_GUARD::S(C),XP(c)
- S(g);N_GUARD::R(M),XS(g)
- Refutation
- Q(h);N_PINP(G)
- Try
- R(M);CHECK
- Vars
- S(g);N_GUARD,P_SPINS(g)::R(M),XS(g)
- Refutation
- S(g);XR(M)
- Try
- R(M);N_SPINP(G),XQ(h)
- Threat
- DUALS(2)
- Vars
- S(g);SBLOCK,XS(K)::R(L)
- S(g);::S(K),XP(f)
- Refutation
- S(g);
- Try
- P(G);
- Threat
- S(C)
- Vars
- S(g);SBLOCK,XS(K)::R(L)
- B(b);N_GUARD::S(C),XP(c)
- Refutation
- Q(h);CHECK,XP(G)
- Try
- Actual
- B(I);
- Threat
- S(K)
- Vars
- Q(h);CHECK,XP(G)::S(C),XQ(h)
- S(g);SBLOCK,XS(K)::R(L)
- Q(h);N_GUARD,N_PINP(G)::S(K),XP(f)
- R(a);N_GUARD::B(A)+P(D)
- B(b);N_GUARD::S(C),XP(c)
- S(g);N_GUARD::R(M),XS(g)
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).