MESON Chess Problem Database
Problem Display
PID: 194052 (8/8/p2p4/K1kP4/3Nr3/1P2PB2/8/4Q3 w - - 0 1)
Johansson, Uno
HM., Tidskrift for Schack, 1917
#2
7 + 4
| 6490 | yacpdb | 2019 |
| 5454 | Near Snap | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Rxe3
- 2.Qb4#
- 1...Rf4
- 2.Se6#
- 2.Qc3#
- 2.Qb4#
- 2.Qc1#
- 1...Rg4
- 2.Se6#
- 2.Qc3#
- 2.Qb4#
- 2.Qc1#
- 1...Rh4
- 2.Se6#
- 2.Qc3#
- 2.Qb4#
- 2.Qc1#
- 1...Re5
- 2.Qc3#
- 2.Qb4#
- 2.Qc1#
- 1...Re6
- 2.Sxe6#
- 2.Qc3#
- 2.Qb4#
- 2.Qc1#
- 1...Re7
- 2.Qc3#
- 2.Qb4#
- 2.Qc1#
- 1...Re8
- 2.Qc3#
- 2.Qb4#
- 2.Qc1#
- 1...Rxe3
- Tries
- 1.Kxa6?
- threat
- 2.Qa5#
- 1...Kxd5
- 2.Qa5#
- 1...Rxe3!
- threat
- 1.Se6+?
- 1...Rxe6
- 2.Qc3#
- 2.Qb4#
- 2.Qc1#
- 1...Kxd5!
- 1...Rxe6
- 1.Qd2?
- 1...Rxe3
- 2.Qb4#
- 1...Rxd4
- 2.Qxd4#
- 2.exd4#
- 1...Rf4
- 2.Se6#
- 2.Qc1#
- 2.Qc3#
- 2.Qb4#
- 2.Qc2#
- 1...Rg4
- 2.Se6#
- 2.Qc1#
- 2.Qc3#
- 2.Qb4#
- 2.Qc2#
- 1...Rh4
- 2.Se6#
- 2.Qc1#
- 2.Qc3#
- 2.Qb4#
- 2.Qc2#
- 1...Re5
- 2.Qc1#
- 2.Qc3#
- 2.Qb4#
- 2.Qc2#
- 1...Re6
- 2.Sxe6#
- 2.Qc1#
- 2.Qc3#
- 2.Qb4#
- 2.Qc2#
- 1...Re7
- 2.Qc1#
- 2.Qc3#
- 2.Qb4#
- 2.Qc2#
- 1...Re8
- 2.Qc1#
- 2.Qc3#
- 2.Qb4#
- 2.Qc2#
- 1...Kxd5!
- 1...Rxe3
- 1.Qf2?
- 1...Rxe3
- 2.Se6#
- 1...Rxd4
- 2.exd4#
- 1...Rf4
- 2.Se6#
- 2.Qc2#
- 1...Rg4
- 2.Se6#
- 2.Qc2#
- 1...Rh4
- 2.Se6#
- 2.Qc2#
- 1...Re5
- 2.Qc2#
- 1...Re6
- 2.Sxe6#
- 2.Qc2#
- 1...Re7
- 2.Qc2#
- 1...Re8
- 2.Qc2#
- 1...Kxd5!
- 1...Rxe3
- 1.Kxa6?
- Keys
- 1.Qg1!
- 1...Kxd5
- 2.Qg5#
- 1...Rxe3
- 2.Se6#
- 1...Rxd4
- 2.exd4#
- 1...Rf4
- 2.Se6#
- 2.Qc1#
- 1...Rg4
- 2.Se6#
- 2.Qc1#
- 1...Rh4
- 2.Se6#
- 2.Qc1#
- 1...Re5
- 2.Qc1#
- 1...Re6
- 2.Sxe6#
- 2.Qc1#
- 1...Re7
- 2.Qc1#
- 1...Re8
- 2.Qc1#
- 1...Kxd5
- 1.Qg1!
Anticipated by 120105(1912)
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 1
- ADDED MATES = 5
- REMOVED MATES = 0
- Sets
- R(a);XP(C)::QAB1(A)
- Tries
- Try
- K(F);P-FLIGHT,XP(c)
- Threat
- QAR2(A)
- Vars
- K(b);P-FLIGHT,P_SPINR(a),XP(G)::QAR(A)
- Refutation
- R(a);XP(C)
- Try
- S(E);CHECK
- Refutation
- K(b);P-FLIGHT,P_SPINR(a),XP(G)
- Try
- Q(A);
- Vars
- R(a);XP(C)::QAB1(A)
- Refutation
- K(b);P-FLIGHT,P_SPINR(a),XP(G)
- Try
- Q(A);
- Vars
- R(a);N_GUARD,XP(C)::S(E)
- R(a);OGATE,XS(E)::P(C),XR(a)
- R(a);::QAR(A)
- Refutation
- K(b);P-FLIGHT,P_SPINR(a),XP(G)
- Try
- Actual
- Q(A);
- Vars
- K(b);OGATEB,P-FLIGHT,P_SPINR(a),XP(G)::QAR(A)
- R(a);N_GUARD,XP(C)::S(E)
- R(a);OGATE,XS(E)::P(C),XR(a)
- R(a);::QAR(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).