MESON Chess Problem Database
Problem Display
PID: 245765 (1NQ3B1/r1B3q1/2pR2r1/P1k1n1nR/1pP3p1/1p4K1/3N4/3b4 w - - 0 1)
Wrobel, Marian
Skakbladet, 1939
#2
10 + 11
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Rxd6
- 2.Bb6#
- 1...Ra6
- 2.Sxa6#
- 1...Rb7
- 2.Sa6#
- 1...Be2
- 2.Sxb3#
- 1...Bf3
- 2.Sxb3#
- 1...Sd3
- 2.Se4#
- 1...Sef3
- 2.Se4#
- 1...Sd7
- 2.Se4#
- 1...Sef7
- 2.Sd7#
- 1...Sgf3
- 2.Se4#
- 1...Sh3
- 2.Se4#
- 1...Se4+
- 2.Sxe4#
- 1...Sgf7
- 2.Sd7#
- 1...Sh7
- 2.Se4#
- 1...Rxd6
- Tries
- 1.Sd7+?
- 1...Sxd7
- 2.Se4#
- 1...Qxd7!
- 1...Sxd7
- 1.Qb7?
- threat
- 2.Qb6#
- 2.Qxa7#
- 1...Se4+
- 2.Sxe4#
- 1...Rxa5
- 2.Qb6#
- 1...Rxb7
- 2.Sa6#
- 1...Sxc4
- 2.Se4#
- 2.Qxc6#
- 1...Ra6
- 2.Sxa6#
- 1...Ra8
- 2.Qb6#
- 1...Sd7
- 2.Se4#
- 2.Qxc6#
- 1...Qxc7!
- threat
- 1.Qf8?
- threat
- 2.Bb6#
- 2.Rd5#
- 2.Qf2#
- 1...Se4+
- 2.Sxe4#
- 1...Qxc7
- 2.Rd5#
- 1...Rxd6
- 2.Bb6#
- 2.Qxd6#
- 1...Rxa5
- 2.Rd5#
- 2.Qf2#
- 1...Rxc7
- 2.Sa6#
- 2.Rd5#
- 1...Sxc4
- 2.Rd5#
- 1...Qf7
- 2.Bb6#
- 2.Rd5#
- 1...Qf6
- 2.Bb6#
- 2.Rd5#
- 1...Qe7
- 2.Qf2#
- 1...Rf6
- 2.Bb6#
- 2.Rd5#
- 1...Ra6
- 2.Sxa6#
- 2.Rd5#
- 2.Qf2#
- 1...Rb7
- 2.Sa6#
- 2.Rd5#
- 2.Qf2#
- 1...Bf3
- 2.Sxb3#
- 2.Bb6#
- 2.Rd5#
- 1...Sd3
- 2.Se4#
- 2.Bb6#
- 2.Rd5#
- 1...Sef3
- 2.Se4#
- 2.Bb6#
- 2.Rd5#
- 1...Sd7
- 2.Se4#
- 2.Rd5#
- 1...Sef7
- 2.Sd7#
- 2.Bb6#
- 2.Rd5#
- 1...Sgf3
- 2.Se4#
- 2.Bb6#
- 2.Rd5#
- 1...Sh3
- 2.Se4#
- 2.Bb6#
- 2.Rd5#
- 1...Se6
- 2.Bb6#
- 2.Rd5#
- 1...Sgf7
- 2.Sd7#
- 2.Bb6#
- 2.Rd5#
- 1...Qxf8!
- threat
- 1.Sd7+?
- Keys
- 1.Qxg4!
- threat
- 2.Qd4#
- 1...Se4+
- 2.Sxe4#
- 1...Rxd6
- 2.Bb6#
- 1...Bxg4
- 2.Sxb3#
- 1...Sxc4
- 2.Qxc4#
- 1...Sxg4
- 2.Se4#
- 1...Sd3
- 2.Se4#
- 1...Sef3
- 2.Se4#
- 1...Sd7
- 2.Se4#
- 1...Sef7
- 2.Sd7#
- 1...Sgf3
- 2.Se4#
- 1...Sh3
- 2.Se4#
- 1...Se6
- 2.Rxc6#
- 1...Sgf7
- 2.Sd7#
- 1...Sh7
- 2.Se4#
- threat
- 1.Qxg4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 4
- Sets
- R(i);SBLOCK,XR(F)::B(G)
- R(j);N_GUARD::S(H),XR(j)
- R(j);N_GUARD::S(H)
- B(a);N_GUARD::S(A),XP(b)
- S(f);P_SPINS(g)::S(A)
- S(f);N_GUARD,P_SPINS(g),S_CUTQ(k)::S(H)
- S(g);N_GUARD,P_SPINS(f)::S(A)
- S(g);CHECK,N_GUARD,P_SPINS(f)::S(A),XS(g)
- S(g);P_SPINS(f),S_CUTQ(k)::S(H)
- Tries
- Try
- S(H);CHECK
- Vars
- S(f);P_SPINS(g),XS(H)::S(A)
- Refutation
- Q(k);XS(H)
- Try
- Q(I);
- Threat
- DUALS(2)
- Vars
- S(g);CHECK,N_GUARD,P_SPINS(f)::S(A),XS(g)
- R(j);XP(D)::QAB1(I)
- R(j);N_GUARD,XQ(I)::S(H)
- R(j);N_GUARD::S(H),XR(j)
- R(j);::QAB1(I)
- Refutation
- Q(k);XB(G)
- Try
- Q(I);
- Threat
- DUALS(3)
- Vars
- S(g);CHECK,N_GUARD,P_SPINS(f)::S(A),XS(g)
- Q(k);XB(G)::QAB(I)+R(F),DCHECK
- S(f);P_SPINS(g),XP(C)::QAB(I)+R(F),DCHECK
- Q(k);::QAB(I)
- Refutation
- Q(k);XQ(I)
- Try
- Actual
- Q(I);XP(d)
- Threat
- QAB1(I)
- Vars
- S(g);CHECK,N_GUARD,P_PINQ(I),P_SPINS(f)::S(A),XS(g)
- R(i);SBLOCK,XR(F)::B(G)
- B(a);N_GUARD,XQ(I)::S(A),XP(b)
- S(f);OGATE,P_SPINS(g),XP(C)::QAR1(I),XS(f)
- S(f);P_SPINS(g),XQ(I)::S(A)
- S(f);P_SPINS(g)::S(A)
- S(f);N_GUARD,P_SPINS(g),S_CUTQ(k)::S(H)
- S(g);N_GUARD,P_PINQ(I),P_SPINS(f)::S(A)
- S(g);P_PINQ(I),P_SPINS(f),S_CUTR(i)::R1(F),XP(h)
- S(g);P_PINQ(I),P_SPINS(f),S_CUTQ(k)::S(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).