MESON Chess Problem Database
Problem Display
PID: 271560 (6Q1/p1B1b3/4p3/4pN1K/2r2kP1/2N2P2/r3P2P/3R2R1 w - - 0 1)
Schmoll, Werner
Die Schwalbe, 2023
#2
11 + 7
SOLUTION
- SOUND
- Sets
- 1...Rxc3
- 2.Rd4#
- 1...Rd4
- 2.Rxd4#
- 1...Rc5
- 2.Rd4#
- 1...Rc6
- 2.Rd4#
- 1...Ba3
- 2.Qg5#
- 1...Bb4
- 2.Qg5#
- 1...Bc5
- 2.Qg5#
- 1...Bg5
- 2.Qxg5#
- 1...Bd6
- 2.Qg5#
- 1...Bf8
- 2.Qg5#
- 1...exf5
- 2.Sd5#
- 1...Rxc3
- Tries
- 1.Rdf1?
- threat
- 2.e3#
- 1...Rxe2
- 2.Sxe2#
- 1...exf5
- 2.Sd5#
- 1...Re4
- 2.fxe4#
- 1...Bc5
- 2.Qg5#
- 1...Rxc3!
- threat
- 1.Rg3?
- threat
- 2.e3#
- 1...Rxe2
- 2.Sxe2#
- 1...Rxc3
- 2.Rd4#
- 1...exf5
- 2.Sd5#
- 1...Bc5
- 2.Qg5#
- 1...Re4!
- threat
- 1.Qxe6?
- threat
- 2.Sd5#
- 2.Bxe5#
- 2.Qxc4#
- 2.Qxe5#
- 1...Rxc3
- 2.Bxe5#
- 2.Rd4#
- 2.Qxe5#
- 1...Rxc7
- 2.Sd5#
- 1...Rd2
- 2.Bxe5#
- 2.Qxe5#
- 1...Raa4
- 2.Sd5#
- 2.Bxe5#
- 2.Qxe5#
- 1...Ra5
- 2.Qxc4#
- 1...Rca4
- 2.Sd5#
- 2.Bxe5#
- 2.Qxe5#
- 1...Rb4
- 2.Sd5#
- 2.Bxe5#
- 2.Qxe5#
- 1...Rd4
- 2.Bxe5#
- 2.Rxd4#
- 2.Qxe5#
- 1...Re4
- 2.Sd5#
- 1...Rc5
- 2.Rd4#
- 1...Rc6
- 2.Sd5#
- 2.Bxe5#
- 2.Rd4#
- 2.Qxe5#
- 1...Bc5
- 2.Sd5#
- 2.Bxe5#
- 2.Qxe5#
- 2.Qh6#
- 1...Bd6
- 2.Sd5#
- 2.Qh6#
- 1...Bf6
- 2.Sd5#
- 2.Qxc4#
- 1...Rxe2!
- threat
- 1.Qa8?
- threat
- 2.e3#
- 1...Rxe2
- 2.Sxe2#
- 1...Rxc3
- 2.Rd4#
- 2.Qe4#
- 1...exf5
- 2.Sd5#
- 1...Re4
- 2.Qxe4#
- 1...Rc6
- 2.Rd4#
- 1...Bc5!
- threat
- 1.Rdf1?
- Keys
- 1.Rgf1!
- threat
- 2.e3#
- 1...Rxe2
- 2.Sxe2#
- 1...Rxc3
- 2.Rd4#
- 1...exf5
- 2.Sd5#
- 1...Re4
- 2.fxe4#
- 1...Bc5
- 2.Qg5#
- threat
- 1.Rgf1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 8
- Sets
- R(b);N_GUARD,XS(E)::R(A)
- R(b);N_GUARD::R(A),XR(b)
- R(b);N_GUARD::R(A)
- B(g);N_GUARD::QAB1(K)
- B(g);N_GUARD::QAB1(K),XB(g)
- B(g);N_GUARD,N_SPINP(d)::QAB1(K)
- P(e);N_GUARD,XS(H)::S(E)
- Tries
- Try
- R(A);
- Threat
- P(C)
- Vars
- R(a);XP(C)::S(E),XR(a)
- P(e);N_GUARD,XS(H)::S(E)
- R(b);OGATE::R(A)+P(F),XR(b)
- B(g);N_GUARD::QAB1(K)
- Refutation
- R(b);XS(E)
- Try
- R(B);
- Threat
- P(C)
- Vars
- R(a);XP(C)::S(E),XR(a)
- R(b);N_GUARD,XS(E)::R(A)
- P(e);N_GUARD,XS(H)::S(E)
- B(g);N_GUARD::QAB1(K)
- Refutation
- R(b);
- Try
- Q(K);XP(e)
- Threat
- DUALS(4)
- Vars
- R(b);N_SPINP(d),XB(J)::S(E)
- R(a);::QAR(K),XR(b)
- R(b);::S(E)
- R(b);N_GUARD::R(A)
- Refutation
- R(a);XP(C)
- Try
- Q(K);
- Threat
- P(C)
- Vars
- R(a);XP(C)::S(E),XR(a)
- P(e);N_GUARD,XS(H)::S(E)
- R(b);N_GUARD::QAR1(K),XR(b)
- R(b);N_GUARD::R(A)
- Refutation
- B(g);
- Try
- Actual
- R(B);
- Threat
- P(C)
- Vars
- R(a);XP(C)::S(E),XR(a)
- R(b);N_GUARD,XS(E)::R(A)
- P(e);N_GUARD,XS(H)::S(E)
- R(b);OGATE::R(B)+P(F),XR(b)
- B(g);N_GUARD::QAB1(K)
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).