MESON Chess Problem Database
Problem Display
PID: 202638 (6b1/1BB5/1pn3Pp/Q2r1N1K/2P1k1P1/1N1pb1p1/4n1P1/2r1RR2 w - - 0 1)
Salamanca, Tomas
Comm., Good Companions, 1923
#2
12 + 11
| 3391 | Het Half Pin Thema | 1924 |
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Rd4
- 2.Qe5#
- 1...Re5
- 2.Qxe5#
- 1...Rxf5+
- 2.Qxf5#
- 1...Rd6
- 2.Sxd6#
- 1...Rd7
- 2.Qe5#
- 1...Rd8
- 2.Qe5#
- 1...Bg1
- 2.Sd2#
- 2.Rf4#
- 1...Bd2
- 2.Sxd2#
- 1...Bf2
- 2.Sd2#
- 1...Bd4
- 2.Sd2#
- 2.Rf4#
- 1...Bf4
- 2.Rxf4#
- 1...Bc5
- 2.Sd2#
- 2.Rf4#
- 1...Bh7
- 2.Qxd5#
- 1...Sg1
- 2.Sd2#
- 2.Rxe3#
- 2.Rf4#
- 1...Sc3
- 2.Sd2#
- 2.Rxe3#
- 2.Rf4#
- 1...Sed4
- 2.Sd2#
- 2.Rxe3#
- 2.Rf4#
- 1...Sf4+
- 2.Rxf4#
- 1...Se5
- 2.Sd6#
- 1...Rd4
- Tries
- 1.Rxe2?
- threat
- 2.Sd2#
- 2.Rf4#
- 2.Rxe3#
- 1...Rxf5+
- 2.Qxf5#
- 1...Rxf1
- 2.Sd2#
- 2.Rxe3#
- 1...d2
- 2.Rxe3#
- 1...Rd1
- 2.Rf4#
- 2.Rxe3#
- 1...Re1
- 2.Sd2#
- 2.Rf4#
- 1...Rc2
- 2.Rf4#
- 2.Rxe3#
- 1...Re5
- 2.Sd2#
- 2.Rxe3#
- 2.Qxe5#
- 1...Rd6
- 2.Sd2#
- 2.Sxg3#
- 2.Sxd6#
- 2.Rxe3#
- 1...Se5
- 2.Sd2#
- 2.Sxg3#
- 2.Sd6#
- 2.Rxe3#
- 1...dxe2!
- threat
- 1.Qd2?
- threat
- 2.Qxe3#
- 1...Sf4+
- 2.Rxf4#
- 1...Bxd2
- 2.Sxd2#
- 1...Bg1
- 2.Rf4#
- 2.Qf4#
- 1...Bf2
- 2.Qf4#
- 1...Bd4
- 2.Rf4#
- 2.Qf4#
- 1...Bf4
- 2.Rxf4#
- 2.Qxf4#
- 1...Bc5
- 2.Rf4#
- 2.Qf4#
- 1...Bg5
- 2.Sxg3#
- 1...Rxf5+!
- threat
- 1.Rxe2?
- Keys
- 1.Rf3!
- threat
- 2.Rxe3#
- 1...Rxf5+
- 2.Qxf5#
- 1...Sf4+
- 2.Rxf4#
- 1...Re5
- 2.Qxe5#
- 1...Rd6
- 2.Sxd6#
- 1...Bg1
- 2.Sd2#
- 2.Rf4#
- 1...Bd2
- 2.Sxd2#
- 1...Bf2
- 2.Sd2#
- 2.Rf4#
- 1...Bd4
- 2.Sd2#
- 2.Rf4#
- 1...Bf4
- 2.Rxf4#
- 1...Bc5
- 2.Sd2#
- 2.Rf4#
- 1...Bg5
- 2.Sxg3#
- 1...Se5
- 2.Sd6#
- threat
- 1.Rf3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 5
- Sets
- R(g);N_PINS(H),OGATE,P_SPINS(i)::QAR1(G)
- R(g);OGATE,P_SPINS(i)::QAR1(G),XR(g)
- R(g);CHECK,OGATE,P_SPINS(i),XS(H)::QAB1(G),XR(g)
- R(g);N_PINS(H),P_SPINS(i)::S(H),XR(g)
- B(d);N_GUARD,P_SPINS(b)::S(D),XB(d)
- B(d);N_GUARD,P_SPINS(b)::S(D)
- B(d);N_GUARD,P_SPINS(b)::R1(B),XB(d)
- B(k);N_GUARD::QAB1(G),XR(g)
- S(b);CHECK,N_GUARD,P_SPINB(d)::R1(B),XS(b)
- S(i);N_PINS(H),P_SPINR(g),SBLOCK::S(H)
- Tries
- Try
- R(A);P_PINB(d),XS(b)
- Threat
- DUALS(3)
- Vars
- R(g);CHECK,OGATE,P_SPINS(i),XS(H)::QAB1(G),XR(g)
- P(c);::R1(A),XB(d)
- Refutation
- P(c);N_SPINB(d),XR(A)
- Try
- Q(G);
- Threat
- QAR1(G),XB(d)
- Vars
- S(b);CHECK,N_GUARD,P_SPINB(d)::R1(B),XS(b)
- B(d);P_SPINS(b),XQ(G)::S(D),XB(d)
- B(d);OGATE,P_SPINS(b)::QAR1(G)
- B(d);N_PINS(H),P_SPINS(b)::S(H),XP(e)
- Refutation
- R(g);CHECK,P_SPINS(i),XS(H)
- Try
- Actual
- R(B);
- Threat
- R1(B),XB(d)
- Vars
- R(g);CHECK,OGATE,P_SPINS(i),XS(H)::QAB1(G),XR(g)
- S(b);CHECK,N_GUARD,P_SPINB(d)::R1(B),XS(b)
- R(g);OGATE,P_SPINS(i)::QAR1(G),XR(g)
- R(g);N_PINS(H),P_SPINS(i)::S(H),XR(g)
- B(d);N_GUARD,P_SPINS(b)::S(D),XB(d)
- B(d);N_GUARD,P_SPINS(b)::R1(B),XB(d)
- B(d);N_PINS(H),P_SPINS(b)::S(H),XP(e)
- S(i);N_PINS(H),P_SPINR(g),SBLOCK::S(H)
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).