MESON Chess Problem Database
Problem Display
PID: 264893 (1B1Q4/2p1p2r/R4b1p/1R3nkB/6P1/2N3PK/r2P3P/1qn5 w - - 0 1)
Parcerisa, Jose Antonio Lopez
Coello-75 JT (Problemas), 2017
#2
11 + 10
SOLUTION
- SOUND
- Sets
- 1...Qe4
- 2.Sxe4#
- 1...Qa1
- 2.Se4#
- 2.Rxf5#
- 1...Qb2
- 2.Se4#
- 2.Rxf5#
- 1...Qb3
- 2.Se4#
- 2.Rxf5#
- 1...Qb4
- 2.Rxf5#
- 1...Qxb5
- 2.Se4#
- 1...Rc2
- 2.Se4#
- 2.Rxf5#
- 1...Rxd2
- 2.Qxd2#
- 1...Bxc3
- 2.Rg6#
- 1...Bd4
- 2.Rg6#
- 1...Be5
- 2.Rg6#
- 1...Bg7
- 2.Rg6#
- 1...Bh8
- 2.Rg6#
- 1...Sd3
- 2.Se4#
- 2.Rxf5#
- 1...c5
- 2.Bf4#
- 1...c6
- 2.Bf4#
- 1...e5
- 2.Qxf6#
- 1...Qe4
- Tries
- 1.Qxe7?
- threat
- 2.Qxf6#
- 2.Qe3#
- 1...Qxb5
- 2.Se4#
- 2.Qxf6#
- 1...Rxa6
- 2.Qe3#
- 1...Bxe7
- 2.Rg6#
- 1...Ra4
- 2.Qxf6#
- 1...Qd3
- 2.Qxf6#
- 1...Qe4
- 2.Sxe4#
- 2.Qxf6#
- 1...Qb4
- 2.Rxf5#
- 2.Qxf6#
- 1...Rf7
- 2.Qe3#
- 1...Se2
- 2.Qxf6#
- 1...Sd3
- 2.Se4#
- 2.Rxf5#
- 2.Qxf6#
- 1...c5
- 2.Bf4#
- 2.Qxf6#
- 1...c6
- 2.Bf4#
- 2.Qe3#
- 1...Rxe7!
- threat
- 1.Qd3?
- threat
- 2.Se4#
- 2.Rxf5#
- 2.Qe3#
- 1...Qxb5
- 2.Se4#
- 1...Bxc3
- 2.Rxf5#
- 2.Rg6#
- 2.Qe3#
- 1...Sxd3
- 2.Se4#
- 2.Rxf5#
- 1...Ra4
- 2.Rxf5#
- 1...Qb4
- 2.Rxf5#
- 2.Qxf5#
- 1...Ra5
- 2.Se4#
- 2.Qe3#
- 1...Bd4
- 2.Se4#
- 2.Rxf5#
- 2.Rg6#
- 1...Be5
- 2.Se4#
- 2.Rg6#
- 1...Se2
- 2.Se4#
- 2.Rxf5#
- 1...c5
- 2.Se4#
- 2.Bf4#
- 1...e5
- 2.Se4#
- 1...e6
- 2.Se4#
- 2.Qe3#
- 1...Qxd3!
- threat
- 1.Qg8+?
- 1...Bg7
- 2.Rg6#
- 1...Rg7!
- 1...Bg7
- 1.Qxe7?
- Keys
- 1.Kg2!
- threat
- 2.h4#
- 1...Qe4+
- 2.Sxe4#
- 1...Rxd2+
- 2.Qxd2#
- 1...Qxb5
- 2.Se4#
- 1...Be5
- 2.Rg6#
- 1...c5
- 2.Bf4#
- 1...e5
- 2.Qxf6#
- threat
- 1.Kg2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 6
- Sets
- Q(a);N_GUARD::S(C),XQ(a)
- Q(a);N_GUARD::R1(G),XS(d)
- Q(a);N_GUARD,N_SPINS(d),XR(G)::S(C)
- R(c);OGATE,XP(A)::QAB(K),XR(c)
- B(f);OGATE,P_SPINP(i),XS(C)::R1(I)
- B(f);OGATE,P_SPINP(i)::R1(I)
- B(f);N_SPINS(d),OGATE,P_SPINP(i)::R1(I)
- P(h);N_SPINS(d),OGATE::B(J)
- P(h);OGATE::B(J)
- P(i);N_SPINS(d),OGATE,P_SPINB(f)::QAB1(K),XB(f)
- Tries
- Try
- Q(K);P_PINB(f),XP(i)
- Threat
- DUALS(2)
- Vars
- R(c);XR(I)::QAB(K)
- B(f);N_SPINB(f),OGATE,XQ(K)::R1(I)
- R(c);::QAB1(K),XB(f)
- Q(a);P_PINP(D)::QAB1(K),XB(f)
- R(j);::QAB(K)
- S(b);::QAB1(K),XB(f)
- Refutation
- R(j);N_SPINB(f),XQ(K)
- Try
- Q(K);
- Threat
- DUALS(3)
- Vars
- Q(a);N_SPINS(d),XR(G)::S(C)
- R(c);::R1(G),XS(d)
- P(i);N_SPINS(d)::S(C)
- Refutation
- Q(a);P_PINP(D),XQ(K)
- Try
- Q(K);CHECK
- Vars
- B(f);OGATE,P_SPINB(f)::R1(I)
- Refutation
- R(j);P_SPINR(j)
- Try
- Actual
- K(E);P_SPINP(A),S_FLIGHT
- Threat
- P(B)
- Vars
- Q(a);CHECK,N_GUARD::S(C),XQ(a)
- R(c);CHECK,OGATE,XP(A)::QAB(K),XR(c)
- Q(a);N_GUARD,N_SPINS(d),XR(G)::S(C)
- B(f);N_SPINS(d),OGATE,P_SPINP(i)::R1(I)
- P(h);N_SPINS(d),OGATE::B(J)
- P(i);N_SPINS(d),OGATE,P_SPINB(f)::QAB1(K),XB(f)
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).