MESON Chess Problem Database
Problem Display
PID: 150218 (3R4/6NK/4N3/1r3R1Q/2P1k3/3r3p/5P2/B1bb4 w - - 0 1)
Paslack, Rainer
Die Schwalbe, 2013
#2
9 + 6
SOLUTION
- SOUND
- Sets
- 1...Rd2
- 2.Sg5#
- 2.Rf4#
- 1...Ra3
- 2.Rd4#
- 1...Rdb3
- 2.Rd4#
- 1...Rc3
- 2.Rd4#
- 1...Re3
- 2.Sg5#
- 2.Rf4#
- 2.Rd4#
- 1...Rf3
- 2.Rd4#
- 1...Rg3
- 2.Rd4#
- 1...Rd4
- 2.Rxd4#
- 1...Rb1
- 2.Sc5#
- 2.Re5#
- 1...Rb2
- 2.Sc5#
- 2.Re5#
- 1...Rbb3
- 2.Sc5#
- 2.Re5#
- 1...Rb4
- 2.Sc5#
- 2.Re5#
- 1...Rc5
- 2.Sxc5#
- 1...Re5
- 2.Rxe5#
- 1...Rxf5
- 2.Qxf5#
- 1...Rb6
- 2.Sc5#
- 2.Re5#
- 1...Rb7
- 2.Sc5#
- 2.Re5#
- 1...Rb8
- 2.Sc5#
- 2.Re5#
- 1...Bb2
- 2.Sg5#
- 2.Rf4#
- 1...Ba3
- 2.Sg5#
- 2.Rf4#
- 1...Bf4
- 2.Rxf4#
- 1...Bg5
- 2.Sxg5#
- 1...Rd2
- Tries
- 1.Re8?
- threat
- 2.Sc5#
- 2.Sg5#
- 1...Rxf5
- 2.Qxf5#
- 1...Rd2
- 2.Sc5#
- 1...Ra3
- 2.Sc5#
- 1...Rdb3
- 2.Sc5#
- 1...Re3
- 2.Sc5#
- 1...Rf3
- 2.Sc5#
- 1...Rg3
- 2.Sc5#
- 1...Rd4
- 2.Sc5#
- 1...Rdd5
- 2.Sc5#
- 1...Rd6
- 2.Sc5#
- 1...Rd7
- 2.Sc5#
- 1...Rd8
- 2.Sc5#
- 1...Rb2
- 2.Re5#
- 1...Rc5
- 2.Sxc5#
- 2.Sg5#
- 1...Re5
- 2.Sc5#
- 2.Rxe5#
- 1...Bb2
- 2.Rf4#
- 1...Bg5
- 2.Sc5#
- 2.Sxg5#
- 1...Rc3!
- threat
- 1.Qe2+?
- 1...Re3
- 2.Sg5#
- 2.Rf4#
- 2.Rd4#
- 2.f3#
- 1...Be3
- 2.Sg5#
- 2.Rf4#
- 2.Qxd3#
- 2.f3#
- 1...Bxe2!
- 1...Re3
- 1.Qf3+?
- 1...Rxf3
- 2.Rd4#
- 1...Bxf3!
- 1...Rxf3
- 1.Qg4+?
- 1...Bf4
- 2.Sg5#
- 2.Rxf4#
- 2.Qxf4#
- 1...Bxg4!
- 1...Bf4
- 1.Qe8?
- threat
- 2.Sc5#
- 2.Sg5#
- 1...Rxd8
- 2.Sc5#
- 1...Rd4
- 2.Sc5#
- 2.Rxd4#
- 1...Rdd5
- 2.Sc5#
- 1...Rd6
- 2.Sc5#
- 1...Rd7
- 2.Sc5#
- 1...Bf4
- 2.Sg5#
- 2.Rxf4#
- 1...Rc5
- 2.Sxc5#
- 2.Sg5#
- 1...Re5
- 2.Sc5#
- 1...Bg5
- 2.Sc5#
- 2.Sxg5#
- 1...Rxf5!
- threat
- 1.Qh4+?
- 1...Bf4
- 2.Sg5#
- 2.Rxf4#
- 2.Qxf4#
- 1...Bg4!
- 1...Bf4
- 1.cxb5?
- threat
- 2.Sc5#
- 2.Re5#
- 1...Rxd8
- 2.Sc5#
- 1...Bxh5
- 2.Sc5#
- 1...Rd4
- 2.Sc5#
- 2.Rxd4#
- 1...Rd6
- 2.Sc5#
- 1...Rd7
- 2.Sc5#
- 1...Rc3
- 2.Re5#
- 2.Rd4#
- 1...Bb2
- 2.Sc5#
- 2.Sg5#
- 2.Rf4#
- 1...Ba3
- 2.Sg5#
- 2.Rf4#
- 2.Re5#
- 1...Be3
- 2.Re5#
- 1...Bf4
- 2.Sc5#
- 2.Rxf4#
- 1...Bg4
- 2.Sc5#
- 1...Rd5!
- threat
- 1.Re8?
- Keys
- 1.Qg6!
- threat
- 2.Rf4#
- 1...Rxf5
- 2.Qxf5#
- 1...Rd4
- 2.Rxd4#
- 1...Bf4
- 2.Rxf4#
- 1...Rc3
- 2.Rd4#
- 1...Rb2
- 2.Sc5#
- 1...Bb2
- 2.Sg5#
- threat
- 1.Qg6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 7
- Sets
- R(c);N_GUARD::R1(I)
- R(c);N_GUARD::R1(I),XR(c)
- R(f);N_GUARD::S(F),XR(f)
- R(f);N_GUARD::R1(D),XR(f)
- R(f);OGATE,XR(D)::QAB1(E),XR(f)
- B(a);N_GUARD::R1(D),XB(a)
- B(a);N_GUARD::S(F),XB(a)
- Tries
- Try
- R(I);
- Threat
- DUALS(2)
- Vars
- R(f);OGATE,XR(D)::QAB1(E),XR(f)
- R(c);::R(I)+S(F),DCHECK
- R(c);P_PINS(G)::R(I)+S(F),DCHECK
- R(f);N_GUARD::R1(D)
- B(a);N_GUARD::R1(D)
- Refutation
- R(c);
- Try
- Q(E);CHECK
- Refutation
- B(b);XQ(E)
- Try
- Q(E);CHECK
- Vars
- R(c);XQ(E)::R1(I)
- Refutation
- B(b);XQ(E)
- Try
- Q(E);CHECK
- Refutation
- B(b);XQ(E)
- Try
- Q(E);
- Threat
- DUALS(2)
- Vars
- R(c);XR(I)::QAR(E)+S(F),DCHECK
- R(c);::QAR(E)+S(F),DCHECK
- R(c);P_PINS(G)::QAR(E)+S(F),DCHECK
- R(f);::S(F)
- Refutation
- R(f);XR(D)
- Try
- Q(E);CHECK
- Refutation
- B(b);P_SPINB(b)
- Try
- P(C);XR(f)
- Threat
- DUALS(2)
- Vars
- R(c);XR(I)::S(F)
- B(b);XQ(E)::S(F)
- R(c);::S(F)
- R(c);P_PINS(G)::S(F)
- B(a);::R1(D)
- B(b);::S(F)
- Refutation
- R(c);
- Try
- Actual
- Q(E);
- Threat
- QAB(E)+R(D),DCHECK
- Vars
- R(f);OGATE,P_SPINR(f),XR(D)::QAB1(E),XR(f)
- R(c);N_GUARD::R1(I),XR(c)
- B(a);::QAB(E)+R(D),DCHECK,XB(a)
- R(c);N_GUARD::R1(I)
- R(f);N_GUARD::S(F)
- B(a);N_GUARD::S(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).