MESON Chess Problem Database
Problem Display
PID: 237004 (4Rb2/4n3/r4Q1r/p1B1npp1/2P2k1N/K1RB1Pp1/6P1/8 w - - 0 1)
Goldschmeding, Cornelis
2nd Prize, Schakend Nederland, 1980
#2
10 + 10
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Sxd3
- 2.Qd4#
- 1...Sxc4+
- 2.Rxc4#
- 1...Sg4
- 2.Qd4#
- 1...S5g6
- 2.Qd4#
- 1...Sd7
- 2.Qd4#
- 1...Sf7
- 2.Qd4#
- 1...Sd5
- 2.Qxe5#
- 2.Qxf5#
- 1...Sc6
- 2.Qxf5#
- 1...S7g6
- 2.Qxf5#
- 1...Sc8
- 2.Qxe5#
- 2.Qxf5#
- 1...Sg8
- 2.Qxe5#
- 2.Qxf5#
- 1...Sxd3
- Tries
- 1.Sxf5?
- threat
- 2.Be3#
- 1...Sxc4+
- 2.Rxc4#
- 1...Sxf5
- 2.Qxe5#
- 2.Qxf5#
- 1...Sg4
- 2.Qd4#
- 1...Sd5
- 2.Qxe5#
- 1...S7c6
- 2.Sxh6#
- 1...S7g6
- 2.Sd6#
- 1...Sc8
- 2.Qxe5#
- 1...Sg8
- 2.Qxe5#
- 1...Sxf3!
- threat
- 1.Sg6+?
- 1...S5xg6
- 2.Qd4#
- 1...S7xg6
- 2.Qxf5#
- 1...Rxg6!
- 1...S5xg6
- 1.Bb1?
- threat
- 2.Be3#
- 1...Sxc4+
- 2.Rxc4#
- 1...Sd3
- 2.Qd4#
- 1...Sg4
- 2.Qd4#
- 1...Sd5
- 2.Qxe5#
- 2.Qxf5#
- 1...S7c6
- 2.Qxf5#
- 1...S7g6
- 2.Qxf5#
- 1...Sc8
- 2.Qxe5#
- 2.Qxf5#
- 1...Sg8
- 2.Qxe5#
- 2.Qxf5#
- 1...Sxf3!
- threat
- 1.Bf1?
- threat
- 2.Be3#
- 1...Sxc4+
- 2.Rxc4#
- 1...Sd3
- 2.Qd4#
- 1...Sg4
- 2.Qd4#
- 1...Sd5
- 2.Qxe5#
- 2.Qxf5#
- 1...S7c6
- 2.Qxf5#
- 1...S7g6
- 2.Qxf5#
- 1...Sc8
- 2.Qxe5#
- 2.Qxf5#
- 1...Sg8
- 2.Qxe5#
- 2.Qxf5#
- 1...Sxf3!
- threat
- 1.Bc2?
- threat
- 2.Be3#
- 1...Sxc4+
- 2.Rxc4#
- 1...Sd3
- 2.Qd4#
- 1...Sg4
- 2.Qd4#
- 1...Sd5
- 2.Qxe5#
- 2.Qxf5#
- 1...S7c6
- 2.Qxf5#
- 1...S7g6
- 2.Qxf5#
- 1...Sc8
- 2.Qxe5#
- 2.Qxf5#
- 1...Sg8
- 2.Qxe5#
- 2.Qxf5#
- 1...Sxf3!
- threat
- 1.Be2?
- threat
- 2.Be3#
- 1...Sxc4+
- 2.Rxc4#
- 1...Sd3
- 2.Qd4#
- 1...Sg4
- 2.Qd4#
- 1...Sd5
- 2.Qxe5#
- 2.Qxf5#
- 1...S7c6
- 2.Qxf5#
- 1...S7g6
- 2.Qxf5#
- 1...Sc8
- 2.Qxe5#
- 2.Qxf5#
- 1...Sg8
- 2.Qxe5#
- 2.Qxf5#
- 1...Sxf3!
- threat
- 1.Sxf5?
- Keys
- 1.Bxf5!
- threat
- 2.Be3#
- 1...Sxc4+
- 2.Rxc4#
- 1...Sxf5
- 2.Qxe5#
- 2.Qxf5#
- 1...Sd3
- 2.Qd4#
- 1...Sg4
- 2.Qd4#
- 1...Sd5
- 2.Qxe5#
- 1...S7c6
- 2.Bg6#
- 1...S7g6
- 2.Be6#
- 1...Sc8
- 2.Qxe5#
- 1...Sg8
- 2.Qxe5#
- threat
- 1.Bxf5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 3
- REMOVED MATES = 3
- Sets
- S(d);OGATE,XB(D)::QAR2(I)
- S(d);CHECK,OGATE,XP(F)::R(C),XS(d)
- S(d);OGATE::QAR2(I)
- S(i);N_GUARD,P_PINB(H)::QAR1(I),XP(e)
- Tries
- Try
- S(G);XP(e)
- Threat
- B(H)
- Vars
- S(d);CHECK,OGATE,XP(F)::R(C),XS(d)
- S(d);OGATE::QAR2(I)
- S(i);P_PINB(H)::QAB1(I),XS(d)
- S(i);N_GUARD,P_PINB(H),S_CUTR(g)::QAR(I)+S(G),XR(h)
- S(i);N_GUARD,P_PINB(H),S_CUTR(h)::QAR(I)+S(G)
- Refutation
- S(d);XP(E)
- Try
- S(G);CHECK
- Vars
- S(d);OGATE,XS(G)::QAR2(I)
- S(i);P_PINB(H),XS(G)::QAR1(I),XP(e)
- Refutation
- R(h);XS(G)
- Try
- B(D);
- Threat
- B(H)
- Vars
- S(d);CHECK,OGATE,XP(F)::R(C),XS(d)
- S(d);OGATE::QAR2(I)
- S(i);N_GUARD,P_PINB(H)::QAR1(I),XP(e)
- Refutation
- S(d);XP(E)
- Try
- B(D);
- Threat
- B(H)
- Vars
- S(d);CHECK,OGATE,XP(F)::R(C),XS(d)
- S(d);OGATE::QAR2(I)
- S(i);N_GUARD,P_PINB(H)::QAR1(I),XP(e)
- Refutation
- S(d);XP(E)
- Try
- B(D);
- Threat
- B(H)
- Vars
- S(d);CHECK,OGATE,XP(F)::R(C),XS(d)
- S(d);OGATE::QAR2(I)
- S(i);N_GUARD,P_PINB(H)::QAR1(I),XP(e)
- Refutation
- S(d);XP(E)
- Try
- B(D);
- Threat
- B(H)
- Vars
- S(d);CHECK,OGATE,XP(F)::R(C),XS(d)
- S(d);OGATE::QAR2(I)
- S(i);N_GUARD,P_PINB(H)::QAR1(I),XP(e)
- Refutation
- S(d);XP(E)
- Try
- Actual
- B(D);XP(e)
- Threat
- B(H)
- Vars
- S(d);CHECK,OGATE,XP(F)::R(C),XS(d)
- S(d);OGATE::QAR2(I)
- S(i);P_PINB(H)::QAB1(I),XS(d)
- S(i);N_GUARD,P_PINB(H),S_CUTR(g)::QAR(I)+B(D)
- S(i);N_GUARD,P_PINB(H),S_CUTR(h)::QAR(I)+B(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).