MESON Chess Problem Database
Problem Display
PID: 165142 (8/8/3pP1K1/3P2Q1/2BnkP2/7p/7N/2br1RB1 w - - 0 1)
Sutara, Josef
Die Schwalbe, 1970
#2
9 + 6
SOLUTION
- SOUND
- Sets
- 1...Bxf4
- 2.Rxf4#
- 2.Qxf4#
- 1...Sc2
- 2.Qf5#
- 1...Se2
- 2.Qf5#
- 1...Sb3
- 2.Qf5#
- 1...Sf3
- 2.Qf5#
- 1...Sb5
- 2.Qf5#
- 1...Sf5
- 2.Qxf5#
- 1...Sc6
- 2.Qf5#
- 1...Sxe6
- 2.Qf5#
- 1...Bxf4
- Tries
- 1.Rxd1?
- threat
- 2.Bd3#
- 2.Rxd4#
- 1...Sxe6
- 2.Bd3#
- 2.Qf5#
- 1...Bb2
- 2.Bd3#
- 1...Be3
- 2.Bd3#
- 1...Sc2
- 2.Bd3#
- 2.Qf5#
- 1...Se2
- 2.Bd3#
- 2.Qf5#
- 1...Sb3
- 2.Bd3#
- 2.Qf5#
- 1...Sf3
- 2.Bd3#
- 2.Qf5#
- 1...Sb5
- 2.Bd3#
- 2.Qf5#
- 1...Sf5
- 2.Qxf5#
- 1...Sc6
- 2.Bd3#
- 2.Qf5#
- 1...Bd2!
- threat
- 1.Re1+?
- 1...Be3
- 2.Rxe3#
- 1...Se2
- 2.Qf5#
- 1...Rxe1!
- 1...Be3
- 1.Qg2+?
- 1...Sf3
- 2.Qxf3#
- 1...hxg2!
- 1...Sf3
- 1.Qg3?
- 1...Bxf4
- 2.Qxf4#
- 1...Sxe6
- 2.Qf3#
- 1...Re1
- 2.Qd3#
- 1...Rd2
- 2.Qe3#
- 1...Rd3
- 2.Qxd3#
- 1...Bb2
- 2.Qe3#
- 1...Bd2
- 2.Qd3#
- 1...Ba3
- 2.Qe3#
- 1...Be3
- 2.Qxe3#
- 1...Sc2
- 2.Qf3#
- 1...Se2
- 2.Qf3#
- 1...Sb3
- 2.Qf3#
- 1...Sf3
- 2.Qxf3#
- 1...Sb5
- 2.Qf3#
- 1...Sf5
- 2.Qf3#
- 1...Sc6
- 2.Qf3#
- 1...Rxf1!
- 1...Bxf4
- 1.Rxd1?
- Keys
- 1.Rf3!
- 1...Rxg1
- 2.Bd3#
- 1...Bxf4
- 2.Rxf4#
- 2.Qxf4#
- 1...Sxf3
- 2.Qf5#
- 1...Sxe6
- 2.Qf5#
- 1...Re1
- 2.Bd3#
- 1...Rf1
- 2.Bd3#
- 1...Rd2
- 2.Re3#
- 1...Rd3
- 2.Bxd3#
- 1...Bb2
- 2.Re3#
- 1...Bd2
- 2.Bd3#
- 1...Ba3
- 2.Re3#
- 1...Be3
- 2.Rxe3#
- 1...Sc2
- 2.Qf5#
- 1...Se2
- 2.Qf5#
- 1...Sb3
- 2.Qf5#
- 1...Sb5
- 2.Qf5#
- 1...Sf5
- 2.Qxf5#
- 1...Sc6
- 2.Qf5#
- 1...Rxg1
- 1.Rf3!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 9
- REMOVED MATES = 0
- Sets
- S(d);N_GUARD::QAB1(G)
- S(d);N_GUARD::QAB1(G),XS(d)
- S(d);N_GUARD,XP(H)::QAB1(G)
- Tries
- Try
- R(A);XR(b)
- Threat
- DUALS(2)
- Vars
- B(a);::B(D)
- S(d);N_GUARD::QAB1(G),XS(d)
- Refutation
- B(a);
- Try
- R(A);CHECK
- Vars
- B(a);N_GUARD,P_SPINB(a)::R1(A),XB(a)
- S(d);P_SPINS(d)::QAB1(G)
- Refutation
- R(b);XR(A)
- Try
- Q(G);CHECK
- Vars
- S(d);N_GUARD,P_SPINS(d)::QAB1(G),XS(d)
- Refutation
- P(c);XQ(G)
- Try
- Q(G);
- Vars
- B(a);OGATE,XP(E)::QAR1(G),XB(a)
- S(d);N_GUARD,XP(H)::QAB1(G)
- R(b);N_GUARD::QAB1(G)
- R(b);S_CUTB(a)::QAR1(G)
- R(b);N_GUARD::QAB1(G),XR(b)
- B(a);N_GUARD::QAR1(G)
- B(a);S_CUTR(b)::QAB1(G)
- B(a);N_GUARD::QAR1(G),XB(a)
- S(d);N_GUARD::QAB1(G)
- S(d);N_GUARD::QAB1(G),XS(d)
- Refutation
- R(b);XR(A)
- Try
- Actual
- R(A);
- Vars
- R(b);N_GUARD,P_PINQ(G),XB(B)::B(D)
- S(d);N_GUARD,XR(A)::QAB1(G)
- S(d);N_GUARD,XP(H)::QAB1(G)
- R(b);N_GUARD::B(D)
- R(b);S_CUTB(a)::R1(A)
- R(b);N_GUARD::B(D),XR(b)
- B(a);N_GUARD::R1(A)
- B(a);S_CUTR(b)::B(D)
- B(a);N_GUARD::R1(A),XB(a)
- S(d);N_GUARD::QAB1(G)
- S(d);N_GUARD::QAB1(G),XS(d)
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).