MESON Chess Problem Database
Problem Display
PID: 90298 (6r1/3P1kbQ/2p1nr1p/2B1P2p/7p/7p/B6P/K5RR w - - 0 1)
Schlegl, Gerhard
6th Prize, Die Schwalbe, 1929
#2
9 + 10
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rf1+
- 2.Rxf1#
- 1...Rf2
- 2.Qg6#
- 1...Rf3
- 2.Qg6#
- 1...Rf4
- 2.Qg6#
- 1...Rf5
- 2.Qg6#
- 1...Rg6
- 2.Qxg6#
- 1...Ra8
- 2.Rxg7#
- 2.Qxg7#
- 1...Rb8
- 2.Rxg7#
- 2.Qxg7#
- 1...Rc8
- 2.Rxg7#
- 2.Qxg7#
- 1...Rd8
- 2.Rxg7#
- 2.Qxg7#
- 1...Re8
- 2.Rxg7#
- 2.Qxg7#
- 1...Rf8
- 2.Rxg7#
- 2.Qxg7#
- 1...Rh8
- 2.Rxg7#
- 2.Qxg7#
- 1...Rf1+
- Tries
- 1.Kb1?
- 1...Rf1+
- 2.Rxf1#
- 1...Rf2
- 2.Qg6#
- 1...Rf3
- 2.Qg6#
- 1...Rf4
- 2.Qg6#
- 1...Rf5
- 2.Qg6#
- 1...Rg6
- 2.Qxg6#
- 1...Ra8
- 2.Rxg7#
- 2.Qxg7#
- 1...Rc8
- 2.Rxg7#
- 2.Qxg7#
- 1...Rd8
- 2.Rxg7#
- 2.Qxg7#
- 1...Re8
- 2.Rxg7#
- 2.Qxg7#
- 1...Rf8
- 2.Rxg7#
- 2.Qxg7#
- 1...Rh8
- 2.Rxg7#
- 2.Qxg7#
- 1...Rb8+!
- 1...Rf1+
- 1.Bb3?
- 1...Rf1+
- 2.Rxf1#
- 1...Rf2
- 2.Qg6#
- 1...Rf3
- 2.Qg6#
- 1...Rf4
- 2.Qg6#
- 1...Rf5
- 2.Qg6#
- 1...Rg6
- 2.Qxg6#
- 1...Rb8
- 2.Rxg7#
- 2.Qxg7#
- 1...Rc8
- 2.Rxg7#
- 2.Qxg7#
- 1...Rd8
- 2.Rxg7#
- 2.Qxg7#
- 1...Re8
- 2.Rxg7#
- 2.Qxg7#
- 1...Rf8
- 2.Rxg7#
- 2.Qxg7#
- 1...Rh8
- 2.Rxg7#
- 2.Qxg7#
- 1...Ra8+!
- 1...Rf1+
- 1.Bc4?
- 1...Rf1+
- 2.Rxf1#
- 1...Rf2
- 2.Qg6#
- 1...Rf3
- 2.Qg6#
- 1...Rf4
- 2.Qg6#
- 1...Rf5
- 2.Qg6#
- 1...Rg6
- 2.Qxg6#
- 1...Rb8
- 2.Rxg7#
- 2.Qxg7#
- 1...Rc8
- 2.Rxg7#
- 2.Qxg7#
- 1...Rd8
- 2.Rxg7#
- 2.Qxg7#
- 1...Re8
- 2.Rxg7#
- 2.Qxg7#
- 1...Rf8
- 2.Rxg7#
- 2.Qxg7#
- 1...Rh8
- 2.Rxg7#
- 2.Qxg7#
- 1...Ra8+!
- 1...Rf1+
- 1.Ba3?
- 1...Rf1+
- 2.Rxf1#
- 1...Rf2
- 2.Qg6#
- 1...Rf3
- 2.Qg6#
- 1...Rf4
- 2.Qg6#
- 1...Rf5
- 2.Qg6#
- 1...Rg6
- 2.Qxg6#
- 1...Ra8
- 2.Rxg7#
- 2.Qxg7#
- 1...Rb8
- 2.Rxg7#
- 2.Qxg7#
- 1...Rc8
- 2.Rxg7#
- 2.Qxg7#
- 1...Rd8
- 2.Rxg7#
- 2.Qxg7#
- 1...Re8
- 2.Rxg7#
- 2.Qxg7#
- 1...Rf8
- 2.Rxg7#
- 2.Qxg7#
- 1...Rh8
- 2.Rxg7#
- 2.Qxg7#
- 1...c5!
- 1...Rf1+
- 1.Bb4?
- 1...Rf1+
- 2.Rxf1#
- 1...Rf2
- 2.Qg6#
- 1...Rf3
- 2.Qg6#
- 1...Rf4
- 2.Qg6#
- 1...Rf5
- 2.Qg6#
- 1...Rg6
- 2.Qxg6#
- 1...Ra8
- 2.Rxg7#
- 2.Qxg7#
- 1...Rb8
- 2.Rxg7#
- 2.Qxg7#
- 1...Rc8
- 2.Rxg7#
- 2.Qxg7#
- 1...Rd8
- 2.Rxg7#
- 2.Qxg7#
- 1...Re8
- 2.Rxg7#
- 2.Qxg7#
- 1...Rf8
- 2.Rxg7#
- 2.Qxg7#
- 1...Rh8
- 2.Rxg7#
- 2.Qxg7#
- 1...c5!
- 1...Rf1+
- 1.Bd6?
- 1...Rf1+
- 2.Rxf1#
- 1...Rf2
- 2.Qg6#
- 1...Rf3
- 2.Qg6#
- 1...Rf4
- 2.Qg6#
- 1...Rf5
- 2.Qg6#
- 1...Rg6
- 2.Qxg6#
- 1...Ra8
- 2.Rxg7#
- 2.Qxg7#
- 1...Rb8
- 2.Rxg7#
- 2.Qxg7#
- 1...Rc8
- 2.Rxg7#
- 2.Qxg7#
- 1...Rd8
- 2.Rxg7#
- 2.Qxg7#
- 1...Re8
- 2.Rxg7#
- 2.Qxg7#
- 1...Rf8
- 2.Rxg7#
- 2.Qxg7#
- 1...Rh8
- 2.Rxg7#
- 2.Qxg7#
- 1...c5!
- 1...Rf1+
- 1.Rg2?
- 1...Rf1+
- 2.Rxf1#
- 1...Rf2
- 2.Rxf2#
- 2.Qg6#
- 1...Rf3
- 2.Qg6#
- 1...Rf4
- 2.Qg6#
- 1...Rf5
- 2.Qg6#
- 1...Rg6
- 2.Qxg6#
- 1...Ra8
- 2.Rxg7#
- 2.Qxg7#
- 1...Rb8
- 2.Rxg7#
- 2.Qxg7#
- 1...Rc8
- 2.Rxg7#
- 2.Qxg7#
- 1...Rd8
- 2.Rxg7#
- 2.Qxg7#
- 1...Re8
- 2.Rxg7#
- 2.Qxg7#
- 1...Rf8
- 2.Rxg7#
- 2.Qxg7#
- 1...Rh8
- 2.Rxg7#
- 2.Qxg7#
- 1...hxg2!
- 1...Rf1+
- 1.Rg3?
- 1...Rf1+
- 2.Rxf1#
- 1...Rf2
- 2.Qg6#
- 1...Rf3
- 2.Rxf3#
- 2.Qg6#
- 1...Rf4
- 2.Qg6#
- 1...Rf5
- 2.Qg6#
- 1...Rg6
- 2.Qxg6#
- 1...Ra8
- 2.Rxg7#
- 2.Qxg7#
- 1...Rb8
- 2.Rxg7#
- 2.Qxg7#
- 1...Rc8
- 2.Rxg7#
- 2.Qxg7#
- 1...Rd8
- 2.Rxg7#
- 2.Qxg7#
- 1...Re8
- 2.Rxg7#
- 2.Qxg7#
- 1...Rf8
- 2.Rxg7#
- 2.Qxg7#
- 1...Rh8
- 2.Rxg7#
- 2.Qxg7#
- 1...hxg3!
- 1...Rf1+
- 1.Rg4?
- 1...Rf1+
- 2.Rxf1#
- 1...Rf2
- 2.Qg6#
- 1...Rf3
- 2.Qg6#
- 1...Rf4
- 2.Rxf4#
- 2.Qg6#
- 1...Rf5
- 2.Qg6#
- 1...Rg6
- 2.Qxg6#
- 1...Ra8
- 2.Rxg7#
- 2.Qxg7#
- 1...Rb8
- 2.Rxg7#
- 2.Qxg7#
- 1...Rc8
- 2.Rxg7#
- 2.Qxg7#
- 1...Rd8
- 2.Rxg7#
- 2.Qxg7#
- 1...Re8
- 2.Rxg7#
- 2.Qxg7#
- 1...Rf8
- 2.Rxg7#
- 2.Qxg7#
- 1...Rh8
- 2.Rxg7#
- 2.Qxg7#
- 1...hxg4!
- 1...Rf1+
- 1.Rg5?
- 1...Rf1+
- 2.Rxf1#
- 1...Rf2
- 2.Qg6#
- 1...Rf3
- 2.Qg6#
- 1...Rf4
- 2.Qg6#
- 1...Rf5
- 2.Rxf5#
- 2.Qg6#
- 1...Rg6
- 2.Qxg6#
- 1...Ra8
- 2.Rxg7#
- 2.Qxg7#
- 1...Rb8
- 2.Rxg7#
- 2.Qxg7#
- 1...Rc8
- 2.Rxg7#
- 2.Qxg7#
- 1...Rd8
- 2.Rxg7#
- 2.Qxg7#
- 1...Re8
- 2.Rxg7#
- 2.Qxg7#
- 1...Rf8
- 2.Rxg7#
- 2.Qxg7#
- 1...Rh8
- 2.Rxg7#
- 2.Qxg7#
- 1...hxg5!
- 1...Rf1+
- 1.Rg6?
- threat
- 2.Rxf6#
- 1...Rf1+
- 2.Rxf1#
- 1...Rf2
- 2.Bxe6#
- 1...Rf3
- 2.Bxe6#
- 1...Rf4
- 2.Bxe6#
- 1...Rf5
- 2.Bxe6#
- 1...Rxg6!
- threat
- 1.exf6?
- threat
- 2.Qg6#
- 1...Ra8
- 2.Qxg7#
- 1...Rb8
- 2.Qxg7#
- 1...Rc8
- 2.Qxg7#
- 1...Rd8
- 2.Qxg7#
- 1...Re8
- 2.Qxg7#
- 1...Rf8
- 2.Qxg7#
- 1...Rh8
- 2.Qxg7#
- 1...Kxf6!
- threat
- 1.d8Q?
- threat
- 2.Qhxg8#
- 2.Qe7#
- 2.Qd7#
- 2.Qdxg8#
- 1...Rf1+
- 2.Rxf1#
- 1...Re8
- 2.Rxg7#
- 2.Qxf6#
- 2.Qxg7#
- 1...Rf8
- 2.Rxg7#
- 2.Qe7#
- 2.Qxg7#
- 2.Qd7#
- 2.Qxf8#
- 1...Rh8
- 2.Rxg7#
- 2.Qe7#
- 2.Qxg7#
- 2.Qd7#
- 1...Rxd8!
- threat
- 1.d8R?
- threat
- 2.Qxg8#
- 1...Rf1+
- 2.Rxf1#
- 1...Re8
- 2.Rxg7#
- 2.Qxg7#
- 1...Rf8
- 2.Rxg7#
- 2.Rxf8#
- 2.Qxg7#
- 1...Rh8
- 2.Rxg7#
- 2.Qxg7#
- 1...Rxd8!
- threat
- 1.Kb1?
- Keys
- 1.Rf1!
- threat
- 2.Rxf6#
- 1...Rxf1+
- 2.Rxf1#
- 1...Rf2
- 2.Rxf2#
- 1...Rf3
- 2.Rxf3#
- 1...Rf4
- 2.Rxf4#
- 1...Rf5
- 2.Rxf5#
- threat
- 1.Rf1!
FEATURES
- Static
- TYPE = BLOCK_THREAT
- CHANGED MATES = 5
- ADDED MATES = 0
- REMOVED MATES = 1
- Sets
- R(f);CHECK,OGATEB,P_PINP(G)::R(B),XR(f)
- R(f);N_GUARD,P_PINP(G)::QAB1(I)
- R(f);N_GUARD,P_PINP(G)::QAB1(I),XR(f)
- Tries
- Try
- K(A);P-FLIGHT
- Vars
- R(f);CHECK,OGATEB::R(B),XR(f)
- R(f);N_GUARD::QAB1(I)
- R(f);N_GUARD::QAB1(I),XR(f)
- Refutation
- R(j);CHECK
- Try
- B(D);
- Vars
- R(f);CHECK,OGATEB,P_PINP(G)::R(B),XR(f)
- R(f);N_GUARD,P_PINP(G)::QAB1(I)
- R(f);N_GUARD,P_PINP(G)::QAB1(I),XR(f)
- Refutation
- R(j);CHECK
- Try
- B(D);
- Vars
- R(f);CHECK,OGATEB,P_PINP(G)::R(B),XR(f)
- R(f);N_GUARD,P_PINP(G)::QAB1(I)
- R(f);N_GUARD,P_PINP(G)::QAB1(I),XR(f)
- Refutation
- R(j);CHECK
- Try
- B(F);
- Vars
- R(f);CHECK,OGATEB,P_PINP(G)::R(B),XR(f)
- R(f);N_GUARD,P_PINP(G)::QAB1(I)
- R(f);N_GUARD,P_PINP(G)::QAB1(I),XR(f)
- Refutation
- P(d);
- Try
- B(F);
- Vars
- R(f);CHECK,OGATEB,P_PINP(G)::R(B),XR(f)
- R(f);N_GUARD,P_PINP(G)::QAB1(I)
- R(f);N_GUARD,P_PINP(G)::QAB1(I),XR(f)
- Refutation
- P(d);
- Try
- B(F);
- Vars
- R(f);CHECK,OGATEB,P_PINP(G)::R(B),XR(f)
- R(f);N_GUARD,P_PINP(G)::QAB1(I)
- R(f);N_GUARD,P_PINP(G)::QAB1(I),XR(f)
- Refutation
- P(d);
- Try
- R(B);
- Vars
- R(f);CHECK,OGATEB,P_PINP(G)::R(C),XR(f)
- R(f);N_GUARD,P_PINP(G)::QAB1(I)
- R(f);N_GUARD,P_PINP(G)::QAB1(I),XR(f)
- Refutation
- P(a);XR(B)
- Try
- R(B);
- Vars
- R(f);CHECK,OGATEB,P_PINP(G)::R(C),XR(f)
- R(f);N_GUARD,P_PINP(G)::QAB1(I)
- R(f);N_GUARD,P_PINP(G)::QAB1(I),XR(f)
- Refutation
- P(b);XR(B)
- Try
- R(B);
- Vars
- R(f);CHECK,OGATEB,P_PINP(G)::R(C),XR(f)
- R(f);N_GUARD,P_PINP(G)::QAB1(I)
- R(f);N_GUARD,P_PINP(G)::QAB1(I),XR(f)
- Refutation
- P(c);XR(B)
- Try
- R(B);
- Vars
- R(f);CHECK,OGATEB,P_PINP(G)::R(C),XR(f)
- R(f);N_GUARD,P_PINP(G)::QAB1(I)
- R(f);N_GUARD,P_PINP(G)::QAB1(I),XR(f)
- Refutation
- P(g);XR(B)
- Try
- R(B);
- Threat
- R1(B),XR(f)
- Vars
- R(f);CHECK,OGATEB,P_PINP(G)::R(C),XR(f)
- R(f);N_GUARD,P_PINP(G)::B(D),XS(e)
- Refutation
- R(f);P_PINP(G),XR(B)
- Try
- P(G);P_SPINP(G),XR(f)
- Threat
- QAB1(I)
- Vars
- R(j);N_GUARD,P_PINB(D)::QAR1(I),XB(i)
- R(j);N_GUARD::QAR1(I),XB(i)
- Refutation
- K(h);N_SPINB(i),N_SPINS(e),P-FLIGHT,XP(G)
- Try
- P(H);
- Threat
- DUALS(4)
- Vars
- R(f);CHECK,OGATEB,P_PINP(G)::R(B),XR(f)
- Refutation
- R(j);XQ(H)
- Try
- P(H);
- Threat
- QAB1(I),XR(j)
- Vars
- R(f);CHECK,OGATEB,P_PINP(G)::R(B),XR(f)
- Refutation
- R(j);XR(H)
- Try
- Actual
- R(B);P_PINR(f)
- Threat
- R1(B),XR(f)
- Vars
- R(f);CHECK,N_SPINR(f),OGATE,P_PINP(G),XR(B)::R(C),XR(f)
- R(f);OGATEB,P_PINP(G)::R(B),XR(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).