MESON Chess Problem Database
Problem Display
PID: 201719 (4n3/2pR1Qpq/8/B2Bk3/2p1r1P1/K1P1rb2/3NR3/8 w - - 0 1)
Kovacs, Florian Janos
Uj Nemezdek, 1922
#2
9 + 9
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Qf5
- 2.Qxf5#
- 1...Qg8
- 2.Qf5#
- 1...Qh1
- 2.Qf5#
- 1...Qh2
- 2.Qf5#
- 1...Qh3
- 2.Qf5#
- 1...Qh4
- 2.Qf5#
- 1...Qh6
- 2.Qf5#
- 1...Qh8
- 2.Qf5#
- 1...Rxe2
- 2.Sxf3#
- 1...Rxc3+
- 2.Bxc3#
- 1...Rd3
- 2.Sxc4#
- 1...Rd4
- 2.Sxf3#
- 1...Rf4
- 2.Qe6#
- 2.Qe7#
- 1...Rxg4
- 2.Sxf3#
- 1...Sd6
- 2.Re7#
- 1...Sf6
- 2.Bxc7#
- 1...Qf5
- Tries
- 1.Bxc7+?
- 1...Sd6
- 2.Bxd6#
- 2.Re7#
- 1...Sxc7!
- 1...Sd6
- 1.Bb7?
- threat
- 2.Rd5#
- 1...Rxc3+
- 2.Bxc3#
- 1...Rxg4
- 2.Sxf3#
- 1...Qf5
- 2.Qxf5#
- 1...Sf6
- 2.Bxc7#
- 1...Rd3
- 2.Sxc4#
- 1...Rd4
- 2.Sxf3#
- 1...Rf4
- 2.Qe7#
- 1...Sd6
- 2.Re7#
- 1...c6!
- threat
- 1.Ba8?
- threat
- 2.Rd5#
- 1...Rxc3+
- 2.Bxc3#
- 1...Rxg4
- 2.Sxf3#
- 1...Qf5
- 2.Qxf5#
- 1...Sf6
- 2.Bxc7#
- 1...Rd3
- 2.Sxc4#
- 1...Rd4
- 2.Sxf3#
- 1...Rf4
- 2.Qe7#
- 1...Sd6
- 2.Re7#
- 1...c6!
- threat
- 1.Rxe3?
- threat
- 2.Sxf3#
- 2.Sxc4#
- 1...Rxe3
- 2.Sxc4#
- 1...Bxg4
- 2.Sxc4#
- 1...Qf5
- 2.Qxf5#
- 1...Sf6
- 2.Bxc7#
- 1...Qh1
- 2.Sxc4#
- 2.Qf5#
- 1...Qh3
- 2.Sxc4#
- 2.Qf5#
- 1...Bd1
- 2.Sxc4#
- 1...Bh1
- 2.Sxc4#
- 1...Bg2
- 2.Sxc4#
- 1...Sd6
- 2.Sxf3#
- 2.Re7#
- 1...Be2!
- threat
- 1.Bxc7+?
- Keys
- 1.Bc6!
- threat
- 2.Rd5#
- 1...Rxc3+
- 2.Bxc3#
- 1...Rxg4
- 2.Sxf3#
- 1...Qf5
- 2.Qxf5#
- 1...Sf6
- 2.Bxc7#
- 1...Rd3
- 2.Sxc4#
- 1...Rd4
- 2.Sxf3#
- 1...Rf4
- 2.Qe7#
- 1...Sd6
- 2.Re7#
- threat
- 1.Bc6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 8
- Sets
- Q(h);N_GUARD::QAR1(I),XQ(h)
- Q(h);N_GUARD::QAR1(I)
- R(a);N_GUARD,N_PINP(D),XR(B)::S(A),XB(b)
- R(a);CHECK,OGATE,P_SPINR(d),XP(D)::B(F),XR(a)
- R(a);P_SPINR(d)::S(A),XP(c)
- R(d);P_SPINR(a)::S(A),XB(b)
- R(d);P_SPINR(a),XP(E)::S(A),XB(b)
- S(i);SBLOCK::R(H)
- S(i);N_GUARD::B(F),XP(f)
- Tries
- Try
- B(F);CHECK,XP(f)
- Refutation
- S(i);XB(F)
- Try
- B(G);
- Threat
- R1(H)
- Vars
- R(a);CHECK,OGATE,P_SPINR(d),XP(D)::B(F),XR(a)
- R(d);P_SPINR(a),XP(E)::S(A),XB(b)
- Q(h);N_GUARD::QAR1(I),XQ(h)
- S(i);N_GUARD::B(F),XP(f)
- R(a);P_SPINR(d)::S(A),XP(c)
- R(d);P_SPINR(a)::S(A),XB(b)
- R(d);P_SPINR(a),SBLOCK::QAR2(I)
- S(i);SBLOCK::R(H)
- Refutation
- P(f);
- Try
- B(G);
- Threat
- R1(H)
- Vars
- R(a);CHECK,OGATE,P_SPINR(d),XP(D)::B(F),XR(a)
- R(d);P_SPINR(a),XP(E)::S(A),XB(b)
- Q(h);N_GUARD::QAR1(I),XQ(h)
- S(i);N_GUARD::B(F),XP(f)
- R(a);P_SPINR(d)::S(A),XP(c)
- R(d);P_SPINR(a)::S(A),XB(b)
- R(d);P_SPINR(a),SBLOCK::QAR2(I)
- S(i);SBLOCK::R(H)
- Refutation
- P(f);
- Try
- R(B);N_SPINP(D),P_PINR(d),XR(a)
- Threat
- DUALS(2)
- Vars
- R(d);N_SPINR(d),P_PINP(D),XR(B)::S(A),XP(c)
- B(b);XP(E)::S(A),XP(c)
- Q(h);N_GUARD::QAR1(I),XQ(h)
- S(i);N_GUARD::B(F),XP(f)
- B(b);::S(A),XP(c)
- Refutation
- B(b);
- Try
- Actual
- B(G);
- Threat
- R1(H)
- Vars
- R(a);CHECK,OGATE,P_SPINR(d),XP(D)::B(F),XR(a)
- R(d);P_SPINR(a),XP(E)::S(A),XB(b)
- Q(h);N_GUARD::QAR1(I),XQ(h)
- S(i);N_GUARD::B(F),XP(f)
- R(a);P_SPINR(d)::S(A),XP(c)
- R(d);P_SPINR(a)::S(A),XB(b)
- R(d);P_SPINR(a),SBLOCK::QAR2(I)
- S(i);SBLOCK::R(H)
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).