MESON Chess Problem Database
Problem Display
PID: 261017 (4RB2/5R2/KNP1b3/P3k1rp/3rP2p/4Q2n/8/8 w - - 0 1)
Junker, Karl
Neue Zurcher Zeitung, 1973
#2
9 + 7
| 6490 | yacpdb | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Rd1
- 2.Sc4#
- 1...Rd2
- 2.Sc4#
- 1...Rd3
- 2.Sc4#
- 1...Ra4
- 2.Sd7#
- 1...Rb4
- 2.Sd7#
- 1...Rc4
- 2.Sxc4#
- 2.Sd7#
- 1...Rxe4
- 2.Qc5#
- 1...Rd5
- 2.Sc4#
- 2.exd5#
- 1...Rd6
- 2.Sc4#
- 1...Rd7
- 2.Sc4#
- 2.Sxd7#
- 1...Rd8
- 2.Sc4#
- 1...Rg1
- 2.Rf5#
- 1...Rg2
- 2.Rf5#
- 1...Rg3
- 2.Rf5#
- 1...Rg4
- 2.Rf5#
- 1...Rf5
- 2.Rxf5#
- 1...Rg6
- 2.Rf5#
- 1...Rg7
- 2.Rf5#
- 1...Rg8
- 2.Rf5#
- 1...Sg1
- 2.Qf4#
- 1...Sf2
- 2.Qf4#
- 1...Sf4
- 2.Qxf4#
- 1...Rd1
- Tries
- 1.Kb5?
- 1...Rd5+
- 2.exd5#
- 1...Rxe4
- 2.Qc5#
- 1...Rd1
- 2.Sc4#
- 1...Rd2
- 2.Sc4#
- 1...Rd3
- 2.Sc4#
- 1...Ra4
- 2.Sd7#
- 1...Rc4
- 2.Sxc4#
- 2.Sd7#
- 1...Rd6
- 2.Sc4#
- 1...Rd7
- 2.Sc4#
- 2.Sxd7#
- 1...Rd8
- 2.Sc4#
- 1...Rg1
- 2.Rf5#
- 1...Rg2
- 2.Rf5#
- 1...Rg3
- 2.Rf5#
- 1...Rg4
- 2.Rf5#
- 1...Rf5
- 2.Rxf5#
- 1...Rg6
- 2.Rf5#
- 1...Rg7
- 2.Rf5#
- 1...Rg8
- 2.Rf5#
- 1...Sg1
- 2.Qf4#
- 1...Sf2
- 2.Qf4#
- 1...Sf4
- 2.Qxf4#
- 1...Rb4+!
- 1...Rd5+
- 1.Ka7?
- 1...Rd7+
- 2.Sxd7#
- 1...Rxe4
- 2.Qc5#
- 1...Rd1
- 2.Sc4#
- 1...Rd2
- 2.Sc4#
- 1...Rd3
- 2.Sc4#
- 1...Ra4
- 2.Sd7#
- 1...Rb4
- 2.Sd7#
- 1...Rc4
- 2.Sxc4#
- 2.Sd7#
- 1...Rd5
- 2.Sc4#
- 2.exd5#
- 1...Rd6
- 2.Sc4#
- 1...Rd8
- 2.Sc4#
- 1...Rg1
- 2.Rf5#
- 1...Rg2
- 2.Rf5#
- 1...Rg3
- 2.Rf5#
- 1...Rg4
- 2.Rf5#
- 1...Rf5
- 2.Rxf5#
- 1...Rg6
- 2.Rf5#
- 1...Rg8
- 2.Rf5#
- 1...Sg1
- 2.Qf4#
- 1...Sf2
- 2.Qf4#
- 1...Sf4
- 2.Qxf4#
- 1...Rg7!
- 1...Rd7+
- 1.Ba3?
- 1...Rxe4
- 2.Qc5#
- 1...Rd1
- 2.Sc4#
- 1...Rd2
- 2.Sc4#
- 1...Rd3
- 2.Sc4#
- 1...Ra4
- 2.Sd7#
- 1...Rc4
- 2.Sxc4#
- 2.Sd7#
- 1...Rd5
- 2.Sc4#
- 2.exd5#
- 1...Rd6
- 2.Sc4#
- 1...Rd7
- 2.Sc4#
- 2.Sxd7#
- 1...Rd8
- 2.Sc4#
- 1...Rg1
- 2.Rf5#
- 1...Rg2
- 2.Rf5#
- 1...Rg3
- 2.Rf5#
- 1...Rg4
- 2.Rf5#
- 1...Rf5
- 2.Rxf5#
- 1...Rg6
- 2.Rf5#
- 1...Rg7
- 2.Rf5#
- 1...Rg8
- 2.Rf5#
- 1...Sg1
- 2.Qf4#
- 1...Sf2
- 2.Qf4#
- 1...Sf4
- 2.Qxf4#
- 1...Rb4!
- 1...Rxe4
- 1.Bb4?
- 1...Rxe4
- 2.Qc5#
- 1...Rd1
- 2.Sc4#
- 1...Rd2
- 2.Sc4#
- 1...Rd3
- 2.Sc4#
- 1...Rc4
- 2.Sxc4#
- 2.Sd7#
- 1...Rd5
- 2.Sc4#
- 2.exd5#
- 1...Rd6
- 2.Sc4#
- 1...Rd7
- 2.Sc4#
- 2.Sxd7#
- 1...Rd8
- 2.Sc4#
- 1...Rg1
- 2.Rf5#
- 1...Rg2
- 2.Rf5#
- 1...Rg3
- 2.Rf5#
- 1...Rg4
- 2.Rf5#
- 1...Rf5
- 2.Rxf5#
- 1...Rg6
- 2.Rf5#
- 1...Rg7
- 2.Rf5#
- 1...Rg8
- 2.Rf5#
- 1...Sg1
- 2.Qf4#
- 1...Sf2
- 2.Qf4#
- 1...Sf4
- 2.Qxf4#
- 1...Rxb4!
- 1...Rxe4
- 1.Bc5?
- threat
- 2.Qxd4#
- 1...Rd1
- 2.Sc4#
- 1...Rd2
- 2.Sc4#
- 1...Rd3
- 2.Sc4#
- 1...Ra4
- 2.Sd7#
- 1...Rb4
- 2.Sd7#
- 1...Rc4
- 2.Sxc4#
- 2.Sd7#
- 1...Rd5
- 2.Sc4#
- 2.exd5#
- 1...Rd6
- 2.Sc4#
- 1...Rd7
- 2.Sc4#
- 2.Sxd7#
- 1...Rd8
- 2.Sc4#
- 1...Rf5
- 2.Rxf5#
- 1...Rxe4!
- threat
- 1.Bd6+?
- 1...Rxd6
- 2.Sc4#
- 1...Kxd6!
- 1...Rxd6
- 1.Rf1?
- 1...Rxe4
- 2.Qc5#
- 1...Rf5
- 2.Rxf5#
- 1...Sf4
- 2.Qxf4#
- 1...Rd1
- 2.Sc4#
- 1...Rd2
- 2.Sc4#
- 1...Rd3
- 2.Sc4#
- 1...Ra4
- 2.Sd7#
- 1...Rb4
- 2.Sd7#
- 1...Rc4
- 2.Sxc4#
- 2.Sd7#
- 1...Rd5
- 2.Sc4#
- 2.exd5#
- 1...Rd6
- 2.Sc4#
- 1...Rd7
- 2.Sc4#
- 2.Sxd7#
- 1...Rd8
- 2.Sc4#
- 1...Rg1
- 2.Rf5#
- 1...Rg2
- 2.Rf5#
- 1...Rg3
- 2.Rf5#
- 1...Rg4
- 2.Rf5#
- 1...Rg6
- 2.Rf5#
- 1...Rg7
- 2.Rf5#
- 1...Rg8
- 2.Rf5#
- 1...Sg1
- 2.Qf4#
- 1...Sf2!
- 1...Rxe4
- 1.Rf2?
- 1...Rxe4
- 2.Qc5#
- 1...Rf5
- 2.Rxf5#
- 1...Sf4
- 2.Qxf4#
- 1...Rd1
- 2.Sc4#
- 1...Rd2
- 2.Sc4#
- 1...Rd3
- 2.Sc4#
- 1...Ra4
- 2.Sd7#
- 1...Rb4
- 2.Sd7#
- 1...Rc4
- 2.Sxc4#
- 2.Sd7#
- 1...Rd5
- 2.Sc4#
- 2.exd5#
- 1...Rd6
- 2.Sc4#
- 1...Rd7
- 2.Sc4#
- 2.Sxd7#
- 1...Rd8
- 2.Sc4#
- 1...Rg1
- 2.Rf5#
- 1...Rg2
- 2.Rf5#
- 1...Rg3
- 2.Rf5#
- 1...Rg4
- 2.Rf5#
- 1...Rg6
- 2.Rf5#
- 1...Rg7
- 2.Rf5#
- 1...Rg8
- 2.Rf5#
- 1...Sg1
- 2.Qf4#
- 1...Sxf2!
- 1...Rxe4
- 1.c7?
- 1...Rxe4
- 2.Qc5#
- 1...Rd1
- 2.Sc4#
- 1...Rd2
- 2.Sc4#
- 1...Rd3
- 2.Sc4#
- 1...Ra4
- 2.Sd7#
- 1...Rb4
- 2.Sd7#
- 1...Rc4
- 2.Sxc4#
- 2.Sd7#
- 1...Rd5
- 2.Sc4#
- 2.exd5#
- 1...Rd7
- 2.Sc4#
- 2.Sxd7#
- 1...Rd8
- 2.Sc4#
- 1...Rg1
- 2.Rf5#
- 1...Rg2
- 2.Rf5#
- 1...Rg3
- 2.Rf5#
- 1...Rg4
- 2.Rf5#
- 1...Rf5
- 2.Rxf5#
- 1...Rg6
- 2.Rf5#
- 1...Rg7
- 2.Rf5#
- 1...Rg8
- 2.Rf5#
- 1...Sg1
- 2.Qf4#
- 1...Sf2
- 2.Qf4#
- 1...Sf4
- 2.Qxf4#
- 1...Rd6!
- 1...Rxe4
- 1.Kb5?
- Keys
- 1.Rf3!
- 1...Rxe4
- 2.Qc5#
- 1...Rf5
- 2.Rxf5#
- 1...Sf4
- 2.Qxf4#
- 1...Rd1
- 2.Sc4#
- 1...Rd2
- 2.Sc4#
- 1...Rd3
- 2.Sc4#
- 1...Ra4
- 2.Sd7#
- 1...Rb4
- 2.Sd7#
- 1...Rc4
- 2.Sxc4#
- 2.Sd7#
- 1...Rd5
- 2.Sc4#
- 2.exd5#
- 1...Rd6
- 2.Sc4#
- 1...Rd7
- 2.Sc4#
- 2.Sxd7#
- 1...Rd8
- 2.Sc4#
- 1...Rg1
- 2.Rf5#
- 1...Rg2
- 2.Rf5#
- 1...Rg3
- 2.Rf5#
- 1...Rg4
- 2.Rf5#
- 1...Rg6
- 2.Rf5#
- 1...Rg7
- 2.Rf5#
- 1...Rg8
- 2.Rf5#
- 1...Sg1
- 2.Qf4#
- 1...Sf2
- 2.Qf4#
- 1...Rxe4
- 1.Rf3!
FEATURES
- Static
- TYPE = WAITER
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- R(b);N_GUARD::S(E)
- R(b);N_GUARD,P_PINP(C)::S(E)
- R(b);OGATE,P_SPINR(b),SBLOCK,XP(B)::QAR2(A)
- R(e);N_GUARD::R1(G)
- R(e);N_GUARD::R1(G),XR(e)
- S(a);N_GUARD::QAB1(A)
- S(a);N_GUARD::QAB1(A),XS(a)
- Tries
- Try
- K(D);S_FLIGHT
- Vars
- R(b);CHECK,OGATE::QAR(A)+P(B),XR(b)
- R(b);OGATE,P_SPINR(b),SBLOCK,XP(B)::QAR2(A)
- R(b);N_GUARD::S(E)
- R(e);N_GUARD::R1(G)
- R(e);N_GUARD::R1(G),XR(e)
- S(a);N_GUARD::QAB1(A)
- S(a);N_GUARD::QAB1(A),XS(a)
- Refutation
- R(b);CHECK
- Try
- K(D);P-FLIGHT
- Vars
- R(b);CHECK,N_GUARD::S(E),XR(b)
- R(b);OGATE,P_SPINR(b),SBLOCK,XP(B)::QAR2(A)
- R(b);N_GUARD::S(E)
- R(b);N_GUARD,P_PINP(C)::S(E)
- R(e);N_GUARD::R1(G)
- R(e);N_GUARD::R1(G),XR(e)
- S(a);N_GUARD::QAB1(A)
- S(a);N_GUARD::QAB1(A),XS(a)
- Refutation
- R(e);P_PINR(G)
- Try
- B(I);
- Vars
- R(b);OGATE,P_SPINR(b),SBLOCK,XP(B)::QAR2(A)
- R(b);N_GUARD::S(E)
- R(b);N_GUARD,P_PINP(C)::S(E)
- R(e);N_GUARD::R1(G)
- R(e);N_GUARD::R1(G),XR(e)
- S(a);N_GUARD::QAB1(A)
- S(a);N_GUARD::QAB1(A),XS(a)
- Refutation
- R(b);
- Try
- B(I);
- Vars
- R(b);OGATE,P_SPINR(b),SBLOCK,XP(B)::QAR2(A)
- R(b);N_GUARD::S(E)
- R(e);N_GUARD::R1(G)
- R(e);N_GUARD::R1(G),XR(e)
- S(a);N_GUARD::QAB1(A)
- S(a);N_GUARD::QAB1(A),XS(a)
- Refutation
- R(b);XB(I)
- Try
- B(I);
- Threat
- QAB1(A),XR(b)
- Vars
- R(b);N_GUARD::S(E)
- R(b);N_GUARD,P_PINP(C)::S(E)
- R(e);N_GUARD::R1(G),XR(e)
- Refutation
- R(b);P_SPINR(b),XP(B)
- Try
- B(I);CHECK
- Vars
- R(b);XB(I)::S(E)
- Refutation
- K(d);N_SPINB(g),S_FLIGHT,XB(I)
- Try
- R(G);
- Vars
- R(b);OGATE,P_SPINR(b),SBLOCK,XP(B)::QAR2(A)
- R(e);N_GUARD::R1(G),XR(e)
- S(a);N_GUARD::QAB1(A),XS(a)
- R(b);N_GUARD::S(E)
- R(b);N_GUARD,P_PINP(C)::S(E)
- R(e);N_GUARD::R1(G)
- S(a);N_GUARD::QAB1(A)
- Refutation
- S(a);
- Try
- R(G);
- Vars
- R(b);OGATE,P_SPINR(b),SBLOCK,XP(B)::QAR2(A)
- R(e);N_GUARD::R1(G),XR(e)
- S(a);N_GUARD::QAB1(A),XS(a)
- R(b);N_GUARD::S(E)
- R(b);N_GUARD,P_PINP(C)::S(E)
- R(e);N_GUARD::R1(G)
- S(a);N_GUARD::QAB1(A)
- Refutation
- S(a);XR(G)
- Try
- P(F);
- Vars
- R(b);OGATE,P_SPINR(b),SBLOCK,XP(B)::QAR2(A)
- R(b);N_GUARD::S(E)
- R(b);N_GUARD,P_PINP(C)::S(E)
- R(e);N_GUARD::R1(G)
- R(e);N_GUARD::R1(G),XR(e)
- S(a);N_GUARD::QAB1(A)
- S(a);N_GUARD::QAB1(A),XS(a)
- Refutation
- R(b);P_PINS(E)
- Try
- Actual
- R(G);
- Vars
- R(b);OGATE,P_SPINR(b),SBLOCK,XP(B)::QAR2(A)
- R(e);N_GUARD::R1(G),XR(e)
- S(a);N_GUARD::QAB1(A),XS(a)
- R(b);N_GUARD::S(E)
- R(b);N_GUARD,P_PINP(C)::S(E)
- R(e);N_GUARD::R1(G)
- S(a);N_GUARD::QAB1(A)
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).