MESON Chess Problem Database
Problem Display
PID: 71272 (2R2n2/R7/8/P7/P2k1Pp1/3P1qp1/BN1PPbQ1/B1NK3b w - - 0 1)
Nietvelt, Gustaaf Josephus
64 Shakhmatnoe obozrenie, 1930
#2
14 + 7
| 56 | The Problemist | 2006 |
SOLUTION
- SOUND
- Sets
- 1...Qxe2+
- 2.Sxe2#
- 1...Qd5
- 2.Sc4#
- 1...Qc6
- 2.Sb3#
- 1...Qb7
- 2.Rc4#
- 1...Qa8
- 2.Sb3#
- 2.Sc4#
- 2.Rc4#
- 1...Qxd3
- 2.Sbxd3#
- 1...Qe3
- 2.Sb3#
- 2.Sc4#
- 2.Rc4#
- 1...Qxf4
- 2.Sc4#
- 1...Qxe2+
- Tries
- 1.Kc2?
- threat
- 2.Sd1#
- 1...Qxd3+
- 2.Sbxd3#
- 1...Qb7
- 2.Rc4#
- 1...Qc6+!
- threat
- 1.Be6?
- threat
- 2.Sb3#
- 2.Sc4#
- 2.Rc4#
- 1...Qxe2+
- 2.Sxe2#
- 1...Qxd3
- 2.Sbxd3#
- 1...Qxf4
- 2.Sc4#
- 1...Qc6
- 2.Sb3#
- 1...Qd5
- 2.Sc4#
- 1...Qb7
- 2.Rc4#
- 1...Sxe6!
- threat
- 1.Bf7?
- threat
- 2.Sb3#
- 2.Sc4#
- 2.Rc4#
- 1...Qxe2+
- 2.Sxe2#
- 1...Qxd3
- 2.Sbxd3#
- 1...Qxf4
- 2.Sc4#
- 1...Qc6
- 2.Sb3#
- 1...Qd5
- 2.Sc4#
- 1...Qb7
- 2.Rc4#
- 1...Se6!
- threat
- 1.Bg8?
- threat
- 2.Sb3#
- 2.Sc4#
- 2.Rc4#
- 1...Qxe2+
- 2.Sxe2#
- 1...Qxd3
- 2.Sbxd3#
- 1...Qxf4
- 2.Sc4#
- 1...Qc6
- 2.Sb3#
- 1...Qd5
- 2.Sc4#
- 1...Qb7
- 2.Rc4#
- 1...Se6!
- threat
- 1.Rd7+?
- 1...Qd5
- 2.Sb3#
- 2.Sc4#
- 2.Rxd5#
- 2.Rc4#
- 1...Sxd7!
- 1...Qd5
- 1.Kc2?
- Keys
- 1.Rb7!
- threat
- 2.Rb4#
- 1...Qxe2+
- 2.Sxe2#
- 1...Qxb7
- 2.Rc4#
- 1...Qxd3
- 2.Sbxd3#
- 1...Qxf4
- 2.Sc4#
- 1...Qc6
- 2.Sb3#
- 1...Qd5
- 2.Sc4#
- threat
- 1.Rb7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- Q(c);CHECK,XP(G)::S(B),XQ(c)
- Q(c);N_PINP(G)::B(A)+S(E)
- Q(c);N_PINP(G)::S(B)
- Q(c);N_PINP(G)::R1(N)
- Q(c);N_PINP(G),P_PINP(F),XP(I)::B(A)+S(E),XQ(c)
- Q(c);N_PINP(G),XP(K)::B(A)+S(E)
- Tries
- Try
- K(C);N_SPINP(G),S_FLIGHT
- Threat
- B(A)+S(E)
- Vars
- Q(c);CHECK,XP(I)::B(A)+S(E),XQ(c)
- Q(c);::R1(N)
- Refutation
- Q(c);CHECK
- Try
- B(D);
- Threat
- DUALS(3)
- Vars
- Q(c);CHECK,XP(G)::S(B),XQ(c)
- Q(c);N_PINP(G),P_PINP(F),XP(I)::B(A)+S(E),XQ(c)
- Q(c);N_PINP(G),XP(K)::B(A)+S(E)
- Q(c);N_PINP(G)::S(B)
- Q(c);N_PINP(G)::B(A)+S(E)
- Q(c);N_PINP(G)::R1(N)
- Refutation
- S(g);XB(D)
- Try
- B(D);
- Threat
- DUALS(3)
- Vars
- Q(c);CHECK,XP(G)::S(B),XQ(c)
- Q(c);N_PINP(G),P_PINP(F),XP(I)::B(A)+S(E),XQ(c)
- Q(c);N_PINP(G),XP(K)::B(A)+S(E)
- Q(c);N_PINP(G)::S(B)
- Q(c);N_PINP(G)::B(A)+S(E)
- Q(c);N_PINP(G)::R1(N)
- Refutation
- S(g);
- Try
- B(D);
- Threat
- DUALS(3)
- Vars
- Q(c);CHECK,XP(G)::S(B),XQ(c)
- Q(c);N_PINP(G),P_PINP(F),XP(I)::B(A)+S(E),XQ(c)
- Q(c);N_PINP(G),XP(K)::B(A)+S(E)
- Q(c);N_PINP(G)::S(B)
- Q(c);N_PINP(G)::B(A)+S(E)
- Q(c);N_PINP(G)::R1(N)
- Refutation
- S(g);
- Try
- R(M);CHECK
- Refutation
- S(g);XR(M)
- Try
- Actual
- R(M);
- Threat
- R(M)
- Vars
- Q(c);CHECK,XP(G)::S(B),XQ(c)
- Q(c);N_PINP(G),XR(M)::R1(N)
- Q(c);N_PINP(G),P_PINP(F),XP(I)::B(A)+S(E),XQ(c)
- Q(c);N_PINP(G),XP(K)::B(A)+S(E)
- Q(c);N_PINP(G)::S(B)
- Q(c);N_PINP(G)::B(A)+S(E)
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).