MESON Chess Problem Database
Problem Display
PID: 11249 (2K5/1p2p2p/bN1bP2R/Rpn1k1p1/4B1p1/p1r3P1/n2N1QP1/B7 w - - 0 1)
Nanning, Frederik Willem
2nd Place, Match: France - The Netherlands, 1937-1938
#2
11 + 13
| 3530 | Het Half Pin Thema (II) | 0000 |
SOLUTION
- SOUND
- Sets
- 1...Bc7
- 2.Qxc5#
- 1...Bb8
- 2.Qxc5#
- 1...Sc1
- 2.Bxc3#
- 1...Sb4
- 2.Bxc3#
- 1...Sb3+
- 2.Sbc4#
- 1...Sd3+
- 2.Sbc4#
- 1...Sa4+
- 2.Sbc4#
- 1...Sxe4+
- 2.Sdc4#
- 1...Sxe6+
- 2.Sbc4#
- 1...Sd7+
- 2.Sbc4#
- 1...b4
- 2.Sd7#
- 1...Bc7
- Tries
- 1.Bb2?
- 1...Sb3+
- 2.Sbc4#
- 1...Sd3+
- 2.Sbc4#
- 1...Sa4+
- 2.Sbc4#
- 1...Sxe4+
- 2.Sdc4#
- 1...Sxe6+
- 2.Sbc4#
- 1...Sd7+
- 2.Sbc4#
- 1...Bc7
- 2.Qxc5#
- 1...Bb8
- 2.Qxc5#
- 1...Sc1
- 2.Bxc3#
- 1...Sb4
- 2.Bxc3#
- 1...b4
- 2.Sd7#
- 1...axb2!
- 1...Sb3+
- 1.Bb1?
- 1...Sb3+
- 2.Sdc4#
- 1...Sa4+
- 2.Sdc4#
- 1...Se4+
- 2.Sdc4#
- 1...Sxe6+
- 2.Sdc4#
- 1...Sd7+
- 2.Sdc4#
- 1...Bc7
- 2.Qxc5#
- 1...Bb8
- 2.Qxc5#
- 1...Sc1
- 2.Bxc3#
- 1...Sb4
- 2.Bxc3#
- 1...b4
- 2.Qe3#
- 1...Sd3+!
- 1...Sb3+
- 1.Bc2?
- 1...Sb3+
- 2.Sdc4#
- 1...Sa4+
- 2.Sdc4#
- 1...Se4+
- 2.Sdc4#
- 1...Sxe6+
- 2.Sdc4#
- 1...Sd7+
- 2.Sdc4#
- 1...Bc7
- 2.Qxc5#
- 1...Bb8
- 2.Qxc5#
- 1...Sc1
- 2.Bxc3#
- 1...Sb4
- 2.Bxc3#
- 1...b4
- 2.Qe3#
- 1...Sd3+!
- 1...Sb3+
- 1.Bd3?
- 1...Sb3+
- 2.Sdc4#
- 1...Sa4+
- 2.Sdc4#
- 1...Se4+
- 2.Sdc4#
- 1...Sxe6+
- 2.Sdc4#
- 1...Sd7+
- 2.Sdc4#
- 1...Bc7
- 2.Qxc5#
- 1...Bb8
- 2.Qxc5#
- 1...Sc1
- 2.Bxc3#
- 1...Sb4
- 2.Bxc3#
- 1...b4
- 2.Qe3#
- 1...Sxd3+!
- 1...Sb3+
- 1.Bf5?
- 1...Sb3+
- 2.Sdc4#
- 1...Sd3+
- 2.Sdc4#
- 1...Sa4+
- 2.Sdc4#
- 1...Se4+
- 2.Sdc4#
- 1...Sxe6+
- 2.Sdc4#
- 1...Sd7+
- 2.Sdc4#
- 1...Bc7
- 2.Qxc5#
- 1...Bb8
- 2.Qxc5#
- 1...Sc1
- 2.Bxc3#
- 1...Sb4
- 2.Bxc3#
- 1...b4!
- 1...Sb3+
- 1.Bc6?
- 1...Sxe6
- 2.Sdc4#
- 2.Sbc4#
- 2.Sd7#
- 1...Bc7
- 2.Qxc5#
- 1...Bb8
- 2.Qxc5#
- 1...Sc1
- 2.Bxc3#
- 1...Sb4
- 2.Bxc3#
- 1...Sb3
- 2.Sdc4#
- 2.Sbc4#
- 2.Sd7#
- 1...Sd3
- 2.Sdc4#
- 2.Sbc4#
- 2.Sd7#
- 1...Sa4
- 2.Sdc4#
- 2.Sbc4#
- 2.Sd7#
- 1...Se4
- 2.Sdc4#
- 2.Sbc4#
- 2.Sd7#
- 1...Sd7
- 2.Sdc4#
- 2.Sbc4#
- 2.Sxd7#
- 1...b4
- 2.Sd7#
- 1...bxc6+!
- 1...Sxe6
- 1.Rxb5?
- threat
- 2.Sbc4#
- 2.Sd7#
- 1...Bc7
- 2.Sbc4#
- 2.Qxc5#
- 1...Bb8
- 2.Sbc4#
- 2.Qxc5#
- 1...Bxb5!
- threat
- 1.Qg1?
- 1...Sb3+
- 2.Sbc4#
- 1...Sd3+
- 2.Sbc4#
- 1...Sa4+
- 2.Sbc4#
- 1...Sxe6+
- 2.Sbc4#
- 1...Sd7+
- 2.Sbc4#
- 1...Bc7
- 2.Qxc5#
- 1...Bb8
- 2.Qxc5#
- 1...Sc1
- 2.Bxc3#
- 1...Sb4
- 2.Bxc3#
- 1...b4
- 2.Sd7#
- 1...Sxe4+!
- 1...Sb3+
- 1.Qe3?
- 1...Sb3+
- 2.Sdc4#
- 2.Sbc4#
- 1...Sd3+
- 2.Sdc4#
- 2.Sbc4#
- 1...Sa4+
- 2.Sdc4#
- 2.Sbc4#
- 1...Sxe6+
- 2.Sdc4#
- 2.Sbc4#
- 1...Sd7+
- 2.Sdc4#
- 2.Sbc4#
- 1...Bc7
- 2.Qxc5#
- 1...Bb8
- 2.Qxc5#
- 1...Sc1
- 2.Bxc3#
- 2.Qxc3#
- 1...Sb4
- 2.Bxc3#
- 2.Qxc3#
- 1...b4
- 2.Sd7#
- 2.Bb1#
- 2.Bc2#
- 2.Bd3#
- 2.Bxh7#
- 1...Sxe4+!
- 1...Sb3+
- 1.Bb2?
- Keys
- 1.Bxh7!
- 1...Sb3+
- 2.Sdc4#
- 1...Sd3+
- 2.Sdc4#
- 1...Sa4+
- 2.Sdc4#
- 1...Se4+
- 2.Sdc4#
- 1...Sxe6+
- 2.Sdc4#
- 1...Sd7+
- 2.Sdc4#
- 1...Bc7
- 2.Qxc5#
- 1...Bb8
- 2.Qxc5#
- 1...Sc1
- 2.Bxc3#
- 1...Sb4
- 2.Bxc3#
- 1...b4
- 2.Qe3#
- 1...Sb3+
- 1.Bxh7!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 6
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- B(j);N_GUARD::QAR2(C),XS(f)
- S(a);N_GUARD::B(A),XR(c)
- S(f);CHECK,P_SPINP(e)::S(H)
- S(f);CHECK,P_SPINP(e),SBLOCK,XB(F)::S(B)
- S(f);CHECK,P_SPINP(e),XP(I)::S(H)
- P(e);P_SPINS(f)::S(H)
- Tries
- Try
- B(A);
- Vars
- S(f);CHECK,P_SPINP(e)::S(H)
- S(f);CHECK,P_SPINP(e),SBLOCK,XB(F)::S(B)
- S(f);CHECK,P_SPINP(e),XP(I)::S(H)
- B(j);N_GUARD::QAR2(C),XS(f)
- S(a);N_GUARD::B(A),XR(c)
- P(e);P_SPINS(f)::S(H)
- Refutation
- P(b);N_SPINR(c),XB(A)
- Try
- B(F);
- Vars
- S(f);CHECK,P_SPINP(e)::S(B)
- S(f);CHECK,P_SPINP(e),XP(I)::S(B)
- B(j);N_GUARD::QAR2(C),XS(f)
- S(a);N_GUARD::B(A),XR(c)
- P(e);P_SPINS(f)::QAR2(C)
- Refutation
- S(f);CHECK,P_SPINP(e)
- Try
- B(F);
- Vars
- S(f);CHECK,P_SPINP(e)::S(B)
- S(f);CHECK,P_SPINP(e),XP(I)::S(B)
- B(j);N_GUARD::QAR2(C),XS(f)
- S(a);N_GUARD::B(A),XR(c)
- P(e);P_SPINS(f)::QAR2(C)
- Refutation
- S(f);CHECK,P_SPINP(e)
- Try
- B(F);
- Vars
- S(f);CHECK,P_SPINP(e)::S(B)
- S(f);CHECK,P_SPINP(e),XP(I)::S(B)
- B(j);N_GUARD::QAR2(C),XS(f)
- S(a);N_GUARD::B(A),XR(c)
- P(e);P_SPINS(f)::QAR2(C)
- Refutation
- S(f);CHECK,P_SPINP(e),XB(F)
- Try
- B(F);
- Vars
- S(f);CHECK,P_SPINP(e)::S(B)
- S(f);CHECK,P_SPINP(e),XP(I)::S(B)
- B(j);N_GUARD::QAR2(C),XS(f)
- S(a);N_GUARD::B(A),XR(c)
- Refutation
- P(e);P_SPINS(f)
- Try
- B(F);
- Vars
- B(j);N_GUARD::QAR2(C),XS(f)
- S(a);N_GUARD::B(A),XR(c)
- P(e);P_SPINS(f)::S(H)
- Refutation
- P(k);CHECK,XB(F)
- Try
- R(G);P_PINS(f),XP(e)
- Threat
- DUALS(2)
- Refutation
- B(i);N_SPINS(f),XR(G)
- Try
- Q(C);
- Vars
- S(f);CHECK,P_SPINP(e)::S(H)
- S(f);CHECK,P_SPINP(e),XP(I)::S(H)
- B(j);N_GUARD::QAR2(C),XS(f)
- S(a);N_GUARD::B(A),XR(c)
- P(e);P_SPINS(f)::S(H)
- Refutation
- S(f);CHECK,P_SPINP(e),XB(F)
- Try
- Q(C);
- Vars
- B(j);N_GUARD::QAR2(C),XS(f)
- Refutation
- S(f);CHECK,P_SPINP(e),P_SPINS(f),XB(F)
- Try
- Actual
- B(F);XP(m)
- Vars
- S(f);CHECK,P_SPINP(e)::S(B)
- S(f);CHECK,P_SPINP(e),XP(I)::S(B)
- B(j);N_GUARD::QAR2(C),XS(f)
- S(a);N_GUARD::B(A),XR(c)
- P(e);P_SPINS(f)::QAR2(C)
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).