MESON Chess Problem Database
Problem Display
PID: 245097 (6B1/8/8/2p1p1N1/3kpp1R/1pn3Pp/1n3P2/Q1R1N1BK w - - 0 1)
Haring, Jacobus
De Maasbode, 1948
#2
10 + 9
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Sbd1
- 2.Rxd1#
- 1...Sd3
- 2.Qxc3#
- 1...Sba4
- 2.Rd1#
- 1...Sc4
- 2.Qxc3#
- 1...Sb1
- 2.Rc4#
- 1...Scd1
- 2.Rc4#
- 1...Sa2
- 2.Rc4#
- 1...Se2
- 2.Rc4#
- 1...Sca4
- 2.Rc4#
- 1...Sb5
- 2.Rc4#
- 1...Sd5
- 2.Se6#
- 1...e3
- 2.fxe3#
- 1...fxg3
- 2.Sgf3#
- 2.fxg3#
- 2.f3#
- 1...f3
- 2.Sgxf3#
- 1...c4
- 2.Qa7#
- 1...Sbd1
- Tries
- 1.Bh2?
- 1...fxg3
- 2.Sgf3#
- 1...c4
- 2.Qa7#
- 1...Sd5
- 2.Se6#
- 1...Sbd1
- 2.Rxd1#
- 1...Sd3
- 2.Qxc3#
- 1...Sba4
- 2.Rd1#
- 1...Sc4
- 2.Qxc3#
- 1...Sb1
- 2.Rc4#
- 1...Scd1
- 2.Rc4#
- 1...Sa2
- 2.Rc4#
- 1...Se2
- 2.Rc4#
- 1...Sca4
- 2.Rc4#
- 1...Sb5
- 2.Rc4#
- 1...f3
- 2.Sgxf3#
- 1...e3!
- 1...fxg3
- 1.Bf7?
- 1...fxg3
- 2.Sgf3#
- 2.fxg3#
- 2.f3#
- 1...c4
- 2.Qa7#
- 1...Sd5
- 2.Se6#
- 1...Sbd1
- 2.Rxd1#
- 1...Sd3
- 2.Qxc3#
- 1...Sba4
- 2.Rd1#
- 1...Sc4
- 2.Qxc3#
- 1...Sb1
- 2.Rc4#
- 1...Scd1
- 2.Rc4#
- 1...Sa2
- 2.Rc4#
- 1...Se2
- 2.Rc4#
- 1...Sca4
- 2.Rc4#
- 1...Sb5
- 2.Rc4#
- 1...e3
- 2.fxe3#
- 1...f3
- 2.Sgxf3#
- 1...h2!
- 1...fxg3
- 1.Rxc3?
- threat
- 2.Rc4#
- 1...c4
- 2.Rxc4#
- 1...Sc4
- 2.Rd3#
- 2.Rxc4#
- 1...Kxc3!
- threat
- 1.Rxf4?
- threat
- 2.Sgf3#
- 2.f3#
- 1...c4
- 2.Qa7#
- 2.f3#
- 1...Sd5
- 2.Sgf3#
- 2.Se6#
- 2.Rxe4#
- 1...Sbd1
- 2.Sgf3#
- 2.Rxd1#
- 2.Rxe4#
- 1...Sd3
- 2.Sef3#
- 2.Sgf3#
- 2.Rxe4#
- 2.Qxc3#
- 1...Sc4
- 2.Sgf3#
- 2.Rxe4#
- 2.Qxc3#
- 1...Scd1
- 2.Sgf3#
- 2.Rc4#
- 2.Rxe4#
- 1...Se2
- 2.Sgf3#
- 2.Rc4#
- 2.Rxe4#
- 1...h2
- 2.Sgf3#
- 1...exf4!
- threat
- 1.Rg4?
- 1...fxg3
- 2.Sgf3#
- 2.fxg3#
- 2.f3#
- 1...c4
- 2.Qa7#
- 1...Sd5
- 2.Se6#
- 1...Sbd1
- 2.Rxd1#
- 1...Sd3
- 2.Qxc3#
- 1...Sba4
- 2.Rd1#
- 1...Sc4
- 2.Qxc3#
- 1...Sb1
- 2.Rc4#
- 1...Scd1
- 2.Rc4#
- 1...Sa2
- 2.Rc4#
- 1...Se2
- 2.Rc4#
- 1...Sca4
- 2.Rc4#
- 1...Sb5
- 2.Rc4#
- 1...e3
- 2.fxe3#
- 1...f3
- 2.Sgxf3#
- 1...h2!
- 1...fxg3
- 1.Qxb2?
- threat
- 2.Rd1#
- 2.Qxc3#
- 2.Qd2#
- 1...e3
- 2.Rd1#
- 2.Qxc3#
- 2.fxe3#
- 1...c4!
- threat
- 1.Bh2?
- Keys
- 1.Kh2!
- 1...fxg3+
- 2.fxg3#
- 1...c4
- 2.Qa7#
- 1...Sbd1
- 2.Rxd1#
- 1...Sd3
- 2.Qxc3#
- 1...Sba4
- 2.Rd1#
- 1...Sc4
- 2.Qxc3#
- 1...Sb1
- 2.Rc4#
- 1...Scd1
- 2.Rc4#
- 1...Sa2
- 2.Rc4#
- 1...Se2
- 2.Rc4#
- 1...Sca4
- 2.Rc4#
- 1...Sb5
- 2.Rc4#
- 1...Sd5
- 2.Se6#
- 1...e3
- 2.fxe3#
- 1...f3
- 2.Sgxf3#
- 1...fxg3+
- 1.Kh2!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- S(a);N_GUARD,P_SPINS(c)::R(B),XS(a)
- S(a);OGATE,P_SPINS(c)::QAB1(A),XS(c)
- S(a);N_GUARD,P_SPINS(c)::R(B)
- S(c);OGATE,P_SPINS(a)::R1(B)
- S(c);P_SPINS(a),SBLOCK::S(I)
- P(f);OGATE,P_SPINP(g)::P(F),XP(f)
- P(g);P_SPINP(f)::S(I),XP(g)
- P(h);OGATEB::QAB(A)
- Tries
- Try
- B(D);
- Vars
- P(g);P_SPINP(f),XP(G)::S(I)
- P(h);OGATEB::QAB(A)
- S(c);P_SPINS(a),SBLOCK::S(I)
- S(a);N_GUARD,P_SPINS(c)::R(B),XS(a)
- S(a);OGATE,P_SPINS(c)::QAB1(A),XS(c)
- S(a);N_GUARD,P_SPINS(c)::R(B)
- S(c);OGATE,P_SPINS(a)::R1(B)
- P(g);P_SPINP(f)::S(I),XP(g)
- Refutation
- P(f);P_SPINP(g)
- Try
- B(J);
- Vars
- P(h);OGATEB::QAB(A)
- S(c);P_SPINS(a),SBLOCK::S(I)
- S(a);N_GUARD,P_SPINS(c)::R(B),XS(a)
- S(a);OGATE,P_SPINS(c)::QAB1(A),XS(c)
- S(a);N_GUARD,P_SPINS(c)::R(B)
- S(c);OGATE,P_SPINS(a)::R1(B)
- P(f);OGATE,P_SPINP(g)::P(F),XP(f)
- P(g);P_SPINP(f)::S(I),XP(g)
- Refutation
- P(d);
- Try
- R(B);XS(c)
- Threat
- R1(B)
- Vars
- P(h);::R1(B),XP(h)
- Refutation
- K(e);P_SPINS(a),S_FLIGHT,XR(B)
- Try
- R(H);P_PINP(f),XP(g)
- Threat
- DUALS(2)
- Vars
- P(d);::S(I)
- Refutation
- P(i);N_SPINP(f),XR(H)
- Try
- R(H);
- Vars
- P(h);OGATEB::QAB(A)
- S(c);P_SPINS(a),SBLOCK::S(I)
- S(a);N_GUARD,P_SPINS(c)::R(B),XS(a)
- S(a);OGATE,P_SPINS(c)::QAB1(A),XS(c)
- S(a);N_GUARD,P_SPINS(c)::R(B)
- S(c);OGATE,P_SPINS(a)::R1(B)
- P(f);OGATE,P_SPINP(g)::P(F),XP(f)
- P(g);P_SPINP(f)::S(I),XP(g)
- Refutation
- P(d);
- Try
- Q(A);P_PINS(c),XS(a)
- Threat
- DUALS(3)
- Refutation
- P(h);
- Try
- Actual
- K(E);P-FLIGHT
- Vars
- P(g);CHECK,OGATE,P_SPINP(f),XP(G)::B(D)+P(F),XP(g)
- P(h);OGATEB::QAB(A)
- S(a);N_GUARD,P_SPINS(c)::R(B),XS(a)
- S(a);OGATE,P_SPINS(c)::QAB1(A),XS(c)
- S(a);N_GUARD,P_SPINS(c)::R(B)
- S(c);OGATE,P_SPINS(a)::R1(B)
- S(c);P_SPINS(a),SBLOCK::S(I)
- P(f);OGATE,P_SPINP(g)::P(F),XP(f)
- P(g);P_SPINP(f)::S(I),XP(g)
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).