MESON Chess Problem Database
Problem Display
PID: 227711 (8/1p4p1/1Q4pb/1B4p1/1PR3R1/p7/Pp1Bp1P1/1K3k2 w - - 0 1)
Kraemer, Adolf Herrmann Rudolf Ferdinand
1/2 HM., Magyar Sakkvilag, 1926
#2
9 + 9
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...e1Q+
- 2.Rc1#
- 1...e1S
- 2.Rc1#
- 2.Rcf4#
- 1...e1B
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rce4#
- 2.Rcf4#
- 2.Rc6#
- 2.Rc7#
- 2.Rc8#
- 1...e1R+
- 2.Rc1#
- 1...e1Q+
- Tries
- 1.Be3?
- 1...e1Q+
- 2.Rc1#
- 1...e1R+
- 2.Rc1#
- 1...e1S
- 2.Rc1#
- 2.Rcf4#
- 1...e1B
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rcd4#
- 2.Rce4#
- 2.Rcf4#
- 2.Rc5#
- 2.Rc6#
- 2.Rc7#
- 2.Rc8#
- 1...Ke1!
- 1...e1Q+
- 1.Bf4?
- 1...e1Q+
- 2.Rc1#
- 1...e1R+
- 2.Rc1#
- 1...Ke1
- 2.Qg1#
- 1...e1S
- 2.Rc1#
- 1...e1B
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Re4#
- 2.Rc6#
- 2.Rc7#
- 2.Rc8#
- 1...gxf4!
- 1...e1Q+
- 1.Bxg5?
- 1...e1Q+
- 2.Rc1#
- 1...e1R+
- 2.Rc1#
- 1...Ke1
- 2.Qg1#
- 1...e1S
- 2.Rc1#
- 2.Rcf4#
- 1...e1B
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rce4#
- 2.Rcf4#
- 2.Rc6#
- 2.Rc7#
- 2.Rc8#
- 1...Bxg5!
- 1...e1Q+
- 1.Rcd4?
- 1...Kf2
- 2.Rdf4#
- 1...Kg1!
- 1...Kf2
- 1.Rc5?
- 1...Kf2
- 2.Rc1#
- 2.Rf5#
- 1...Kg1!
- 1...Kf2
- 1.Rg3?
- 1...e1Q+
- 2.Rc1#
- 1...e1R+
- 2.Rc1#
- 1...e1S
- 2.Rc1#
- 2.Rf4#
- 1...e1B
- 2.Rc1#
- 2.Rc2#
- 2.Rcc3#
- 2.Re4#
- 2.Rf4#
- 2.Rcg4#
- 2.Rh4#
- 2.Rc6#
- 2.Rc7#
- 2.Rc8#
- 1...g4!
- 1...e1Q+
- 1.Rxg5?
- threat
- 2.Rf4#
- 1...e1Q+
- 2.Rc1#
- 1...e1R+
- 2.Rc1#
- 1...Bxg5!
- threat
- 1.Qe3?
- 1...e1Q+
- 2.Rc1#
- 2.Qxe1#
- 1...e1R+
- 2.Rc1#
- 2.Qxe1#
- 1...e1S
- 2.Rc1#
- 2.Rcf4#
- 2.Qxe1#
- 1...e1B
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rcd4#
- 2.Rce4#
- 2.Rcf4#
- 2.Rc5#
- 2.Rc6#
- 2.Rc7#
- 2.Rc8#
- 2.Qxe1#
- 1...b6!
- 1...e1Q+
- 1.Qd4?
- 1...e1Q+
- 2.Rc1#
- 1...e1R+
- 2.Rc1#
- 1...e1S
- 2.Rc1#
- 1...e1B
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rc5#
- 2.Rc6#
- 2.Rc7#
- 2.Rc8#
- 1...b6!
- 1...e1Q+
- 1.Qc5?
- 1...e1Q+
- 2.Rc1#
- 1...e1R+
- 2.Rc1#
- 1...e1S
- 2.Rc1#
- 2.Rcf4#
- 1...e1B
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rce4#
- 2.Rcf4#
- 1...b6!
- 1...e1Q+
- 1.Qa7?
- 1...e1Q+
- 2.Rc1#
- 1...e1R+
- 2.Rc1#
- 1...e1S
- 2.Rc1#
- 2.Rcf4#
- 1...e1B
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rce4#
- 2.Rcf4#
- 2.Rc6#
- 2.Rc7#
- 2.Rc8#
- 1...b6!
- 1...e1Q+
- 1.Be3?
- Keys
- 1.Bc1!
- 1...bxc1Q+
- 2.Rxc1#
- 1...bxc1R+
- 2.Rxc1#
- 1...Ke1
- 2.Qg1#
- 1...bxc1S
- 2.Rxc1#
- 1...bxc1B
- 2.Rxc1#
- 1...e1Q
- 2.Rcf4#
- 1...e1S
- 2.Rcf4#
- 1...e1B
- 2.Rc2#
- 2.Rc3#
- 2.Rce4#
- 2.Rcf4#
- 2.Rc6#
- 2.Rc7#
- 2.Rc8#
- 1...e1R
- 2.Rcf4#
- 1...bxc1Q+
- 1.Bc1!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 2
- ADDED MATES = 6
- REMOVED MATES = 0
- Sets
- P(c);CHECK,S_CUTP(b),S_CUTP(b),S_CUTP(b),S_CUTP(b)::B(H)+R(F)
- Tries
- Try
- B(C);
- Vars
- P(c);CHECK,S_CUTP(b),S_CUTP(b),S_CUTP(b),S_CUTP(b)::B(H)+R(F)
- Refutation
- K(a);P-FLIGHT
- Try
- B(C);
- Vars
- P(c);CHECK,S_CUTP(b),S_CUTP(b),S_CUTP(b),S_CUTP(b)::B(H)+R(F)
- K(a);P-FLIGHT::QAR2(I)
- P(c);S_CUTP(b),S_CUTP(b),S_CUTP(b),S_CUTP(b)::B(H)+R(F)
- Refutation
- P(e);XB(C)
- Try
- B(C);XP(e)
- Vars
- P(c);CHECK,S_CUTP(b),S_CUTP(b),S_CUTP(b),S_CUTP(b)::B(H)+R(F)
- K(a);P-FLIGHT::QAR2(I)
- Refutation
- B(g);XB(C)
- Try
- R(F);P_PINP(c)
- Vars
- K(a);N_SPINP(c),P-FLIGHT::QAB(I)+R(F),DCHECK
- Refutation
- K(a);N_SPINP(c),P-FLIGHT
- Try
- R(F);P_PINP(c)
- Refutation
- K(a);N_SPINP(c),P-FLIGHT
- Try
- R(G);
- Vars
- P(c);CHECK,S_CUTP(b),S_CUTP(b),S_CUTP(b),S_CUTP(b)::B(H)+R(F)
- Refutation
- P(e);
- Try
- R(G);XP(e)
- Threat
- R(F)
- Vars
- P(c);CHECK,S_CUTP(b),S_CUTP(b),S_CUTP(b),S_CUTP(b)::B(H)+R(F)
- Refutation
- B(g);XR(G)
- Try
- Q(I);
- Refutation
- P(h);
- Try
- Q(I);
- Vars
- P(c);CHECK,S_CUTP(b),S_CUTP(b),S_CUTP(b),S_CUTP(b)::B(H)+R(F)
- P(c);S_CUTP(b),S_CUTP(b),S_CUTP(b),S_CUTP(b)::B(H)+R(F)
- Refutation
- P(h);
- Try
- Q(I);
- Vars
- P(c);CHECK,S_CUTP(b),S_CUTP(b),S_CUTP(b),S_CUTP(b)::B(H)+R(F)
- Refutation
- P(h);
- Try
- Q(I);
- Vars
- P(c);CHECK,S_CUTP(b),S_CUTP(b),S_CUTP(b),S_CUTP(b)::B(H)+R(F)
- Refutation
- P(h);
- Try
- Actual
- B(C);
- Vars
- P(b);CHECK,OGATE,XB(C)::R(F),XQ(b)
- P(b);CHECK,OGATE,XB(C)::R(F),XR(b)
- K(a);P-FLIGHT::QAR2(I)
- P(b);OGATE,XB(C)::R(F),XS(b)
- P(b);OGATE,XB(C)::R(F),XB(b)
- P(c);P_PINB(C),SBLOCK::B(H)+R(F),DCHECK
- P(c);SBLOCK::B(H)+R(F),DCHECK
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).