MESON Chess Problem Database
Problem Display
PID: 19098 (n3Nb2/1p2p3/1P4p1/2QPkbR1/p1Pp4/K4PPn/7B/8 w - - 0 1)
Pirnie, Duncan
Hampshire Post, 1912
#2
10 + 10
SOLUTION
- SOUND
- Sets
- 1...Bh6
- 2.Qxe7#
- 1...Bg7
- 2.Qxe7#
- 1...Sg1
- 2.g4#
- 1...Sf2
- 2.g4#
- 1...Sf4
- 2.gxf4#
- 1...Sxg5
- 2.g4#
- 1...Sxb6
- 2.Qc7#
- 1...Sc7
- 2.Qxc7#
- 1...d3
- 2.Qe3#
- 1...e6
- 2.d6#
- 1...Bh6
- Tries
- 1.Ka2?
- 1...Sxg5
- 2.g4#
- 1...Sxb6
- 2.Qc7#
- 1...Bh6
- 2.Qxe7#
- 1...Bg7
- 2.Qxe7#
- 1...Sg1
- 2.g4#
- 1...Sf2
- 2.g4#
- 1...Sf4
- 2.gxf4#
- 1...Sc7
- 2.Qxc7#
- 1...d3
- 2.Qe3#
- 1...e6
- 2.d6#
- 1...a3!
- 1...Sxg5
- 1.Kb2?
- 1...Sxg5
- 2.g4#
- 1...Sxb6
- 2.Qc7#
- 1...Bh6
- 2.Qxe7#
- 1...Bg7
- 2.Qxe7#
- 1...Sg1
- 2.g4#
- 1...Sf2
- 2.g4#
- 1...Sf4
- 2.gxf4#
- 1...Sc7
- 2.Qxc7#
- 1...d3
- 2.Qe3#
- 1...e6
- 2.d6#
- 1...a3+!
- 1...Sxg5
- 1.Kxa4?
- 1...Sxg5
- 2.g4#
- 1...Bh6
- 2.Qxe7#
- 1...Bg7
- 2.Qxe7#
- 1...Sg1
- 2.g4#
- 1...Sf2
- 2.g4#
- 1...Sf4
- 2.gxf4#
- 1...Sc7
- 2.Qxc7#
- 1...d3
- 2.Qe3#
- 1...e6
- 2.d6#
- 1...Sxb6+!
- 1...Sxg5
- 1.Kb4?
- 1...Sxg5
- 2.g4#
- 1...Sxb6
- 2.Qc7#
- 1...Bh6
- 2.Qxe7#
- 1...Bg7
- 2.Qxe7#
- 1...Sg1
- 2.g4#
- 1...Sf2
- 2.g4#
- 1...Sf4
- 2.gxf4#
- 1...Sc7
- 2.Qxc7#
- 1...d3
- 2.Qe3#
- 1...e6
- 2.d6#
- 1...a3!
- 1...Sxg5
- 1.Qb4?
- threat
- 2.Qe1#
- 1...Sxg5
- 2.g4#
- 1...d3
- 2.Qc3#
- 2.Qb2#
- 1...Sg1
- 2.g4#
- 1...Sf2
- 2.g4#
- 1...Sf4
- 2.gxf4#
- 1...e6!
- threat
- 1.Ka2?
- Keys
- 1.Qa5!
- threat
- 2.Qe1#
- 1...e6+
- 2.d6#
- 1...Sxg5
- 2.g4#
- 1...d3
- 2.Qc3#
- 1...Sg1
- 2.g4#
- 1...Sf2
- 2.g4#
- 1...Sf4
- 2.gxf4#
- threat
- 1.Qa5!
FEATURES
- Static
- TYPE = BLOCK_THREAT
- CHANGED MATES = 1
- ADDED MATES = 0
- REMOVED MATES = 4
- Sets
- B(j);N_GUARD::QAR2(F),XP(h)
- S(a);N_GUARD::B(A)+P(D)
- S(a);OGATE::P(D),XS(a)
- S(a);N_GUARD,N_SPINB(e),XR(H)::B(A)+P(D)
- S(i);N_GUARD,XP(I)::QAB(F)
- S(i);N_GUARD::QAB(F),XS(i)
- P(c);OGATE::QAR2(F)
- P(h);P_PINQ(F),SBLOCK::QAR(F)+P(G)
- Tries
- Try
- K(B);P-FLIGHT
- Vars
- S(a);N_GUARD,N_SPINB(e),XR(H)::B(A)+P(D)
- S(i);N_GUARD,XP(I)::QAB(F)
- B(j);N_GUARD::QAR2(F),XP(h)
- S(a);N_GUARD::B(A)+P(D)
- S(a);OGATE::P(D),XS(a)
- S(i);N_GUARD::QAB(F),XS(i)
- P(c);OGATE::QAR2(F)
- P(h);SBLOCK::QAR(F)+P(G)
- Refutation
- P(b);
- Try
- K(B);S_FLIGHT
- Vars
- S(a);N_GUARD,N_SPINB(e),XR(H)::B(A)+P(D)
- S(i);N_GUARD,XP(I)::QAB(F)
- B(j);N_GUARD::QAR2(F),XP(h)
- S(a);N_GUARD::B(A)+P(D)
- S(a);OGATE::P(D),XS(a)
- S(i);N_GUARD::QAB(F),XS(i)
- P(c);OGATE::QAR2(F)
- P(h);SBLOCK::QAR(F)+P(G)
- Refutation
- P(b);CHECK
- Try
- K(B);P-FLIGHT,XP(b)
- Vars
- S(a);N_GUARD,N_SPINB(e),XR(H)::B(A)+P(D)
- B(j);N_GUARD::QAR2(F),XP(h)
- S(a);N_GUARD::B(A)+P(D)
- S(a);OGATE::P(D),XS(a)
- S(i);N_GUARD::QAB(F),XS(i)
- P(c);OGATE::QAR2(F)
- P(h);SBLOCK::QAR(F)+P(G)
- Refutation
- S(i);CHECK,XP(I)
- Try
- K(B);S_FLIGHT
- Vars
- S(a);N_GUARD,N_SPINB(e),XR(H)::B(A)+P(D)
- S(i);N_GUARD,XP(I)::QAB(F)
- B(j);N_GUARD::QAR2(F),XP(h)
- S(a);N_GUARD::B(A)+P(D)
- S(a);OGATE::P(D),XS(a)
- S(i);N_GUARD::QAB(F),XS(i)
- P(c);OGATE::QAR2(F)
- P(h);P_PINQ(F),SBLOCK::QAR(F)+P(G)
- Refutation
- P(b);
- Try
- Q(F);
- Threat
- QAR(F)
- Vars
- S(a);N_GUARD,N_SPINB(e),XR(H)::B(A)+P(D)
- S(a);N_GUARD::B(A)+P(D)
- S(a);OGATE::P(D),XS(a)
- Refutation
- P(h);P_PINQ(F)
- Try
- Actual
- Q(F);
- Threat
- QAR(F)
- Vars
- P(h);CHECK,SBLOCK::QAR(F)+P(G)
- S(a);N_GUARD,N_SPINB(e),XR(H)::B(A)+P(D)
- P(c);OGATEB::QAB(F)
- S(a);N_GUARD::B(A)+P(D)
- S(a);OGATE::P(D),XS(a)
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).