MESON Chess Problem Database
Problem Display
PID: 49685 (3n4/3Q1pKN/4pP1p/3Npp1k/6nq/8/3p2RR/3B4 w - - 0 1)
Pape, Edouard
The Puzzler, 1933
#2
8 + 10
SOLUTION
- SOUND
- Sets
- 1...Qxh2
- 2.Rxh2#
- 1...Qh3
- 2.Rxh3#
- 1...Sc6
- 2.Qxf7#
- 1...Sb7
- 2.Qxf7#
- 1...e4
- 2.Sf4#
- 1...f4
- 2.Bxg4#
- 1...exd5
- 2.Qxf5#
- 1...Qxh2
- Tries
- 1.Sc3?
- 1...Qxh2
- 2.Rxh2#
- 1...Qh3
- 2.Rxh3#
- 1...Sc6
- 2.Qxf7#
- 1...Sb7
- 2.Qxf7#
- 1...f4
- 2.Bxg4#
- 1...e4!
- 1...Qxh2
- 1.Se3?
- 1...Qxh2
- 2.Rxh2#
- 1...Qh3
- 2.Rxh3#
- 1...Sc6
- 2.Qxf7#
- 1...Sb7
- 2.Qxf7#
- 1...f4
- 2.Bxg4#
- 1...e4!
- 1...Qxh2
- 1.Sb4?
- 1...Qxh2
- 2.Rxh2#
- 1...Qh3
- 2.Rxh3#
- 1...Sc6
- 2.Qxf7#
- 1...Sb7
- 2.Qxf7#
- 1...f4
- 2.Bxg4#
- 1...e4!
- 1...Qxh2
- 1.Sb6?
- 1...Qxh2
- 2.Rxh2#
- 1...Qh3
- 2.Rxh3#
- 1...Sc6
- 2.Qxf7#
- 1...Sb7
- 2.Qxf7#
- 1...f4
- 2.Bxg4#
- 1...e4!
- 1...Qxh2
- 1.Sc7?
- 1...Qxh2
- 2.Rxh2#
- 1...Qh3
- 2.Rxh3#
- 1...Sc6
- 2.Qxf7#
- 1...Sb7
- 2.Qxf7#
- 1...f4
- 2.Bxg4#
- 1...e4!
- 1...Qxh2
- 1.Rg1?
- 1...exd5
- 2.Qxf5#
- 1...Qh3
- 2.Rxh3#
- 1...e4
- 2.Sf4#
- 1...Sc6
- 2.Qxf7#
- 1...Sb7
- 2.Qxf7#
- 1...f4
- 2.Bxg4#
- 1...Qxh2!
- 1...exd5
- 1.Rxd2?
- 1...Qxh2
- 2.Rxh2#
- 1...exd5
- 2.Qxf5#
- 1...Qh3
- 2.Rxh3#
- 1...e4
- 2.Sf4#
- 1...Sc6
- 2.Qxf7#
- 1...Sb7
- 2.Qxf7#
- 1...f4!
- 1...Qxh2
- 1.Rf2?
- 1...Qxh2
- 2.Rxh2#
- 1...exd5
- 2.Rxf5#
- 2.Qxf5#
- 1...Qh3
- 2.Rxh3#
- 1...e4
- 2.Sf4#
- 1...Sc6
- 2.Qxf7#
- 1...Sb7
- 2.Qxf7#
- 1...f4!
- 1...Qxh2
- 1.Rg3?
- 1...exd5
- 2.Qxf5#
- 1...Qh3
- 2.Rhxh3#
- 2.Rgxh3#
- 1...e4
- 2.Sf4#
- 1...Sc6
- 2.Qxf7#
- 1...Sb7
- 2.Qxf7#
- 1...f4
- 2.Bxg4#
- 1...Qxh2!
- 1...exd5
- 1.Rh1?
- 1...exd5
- 2.Qxf5#
- 1...Qh2
- 2.Rhxh2#
- 2.Rgxh2#
- 1...Qh3
- 2.Rxh3#
- 1...e4
- 2.Sf4#
- 1...Sc6
- 2.Qxf7#
- 1...Sb7
- 2.Qxf7#
- 1...f4
- 2.Bxg4#
- 1...Qxh1!
- 1...exd5
- 1.Rh3?
- 1...exd5
- 2.Qxf5#
- 1...e4
- 2.Sf4#
- 1...Sc6
- 2.Qxf7#
- 1...Sb7
- 2.Qxf7#
- 1...f4
- 2.Bxg4#
- 1...Qxh3!
- 1...exd5
- 1.Qe8?
- 1...Qxh2
- 2.Rxh2#
- 1...Qh3
- 2.Rxh3#
- 1...e4
- 2.Sf4#
- 1...Sc6
- 2.Qxf7#
- 1...Sb7
- 2.Qxf7#
- 1...f4
- 2.Bxg4#
- 1...exd5!
- 1...Qxh2
- 1.Qc7?
- 1...Qxh2
- 2.Rxh2#
- 1...Qh3
- 2.Rxh3#
- 1...e4
- 2.Sf4#
- 1...Sc6
- 2.Qxf7#
- 1...Sb7
- 2.Qxf7#
- 1...f4
- 2.Bxg4#
- 2.Qxe5#
- 1...exd5!
- 1...Qxh2
- 1.Qe7?
- 1...Qxh2
- 2.Rxh2#
- 1...Qh3
- 2.Rxh3#
- 1...e4
- 2.Sf4#
- 1...Sc6
- 2.Qxf7#
- 1...Sb7
- 2.Qxf7#
- 1...f4
- 2.Bxg4#
- 1...exd5!
- 1...Qxh2
- 1.Qxd8?
- 1...Qxh2
- 2.Rxh2#
- 1...Qh3
- 2.Rxh3#
- 1...e4
- 2.Sf4#
- 1...f4
- 2.Bxg4#
- 1...exd5!
- 1...Qxh2
- 1.Sc3?
- Keys
- 1.Re2!
- 1...Qxh2
- 2.Rxh2#
- 1...Sxh2
- 2.Rxh2#
- 1...Sxf6
- 2.Sdxf6#
- 1...exd5
- 2.Qxf5#
- 1...Qh3
- 2.Rxh3#
- 1...Sf2
- 2.Rexf2#
- 1...Se3
- 2.Rxe3#
- 1...e4
- 2.Sf4#
- 1...Sc6
- 2.Qxf7#
- 1...Sb7
- 2.Qxf7#
- 1...f4
- 2.Rxe5#
- 1...Qxh2
- 1.Re2!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 1
- ADDED MATES = 4
- REMOVED MATES = 0
- Sets
- Q(c);N_SPINQ(c),OGATE,XR(C)::R(B),XQ(c)
- Q(c);OGATEB::R(C),XQ(c)
- S(j);N_GUARD::QAB(F),XP(i)
- P(d);N_GUARD::S(D)
- P(e);N_GUARD::B(A),XS(b)
- P(g);OGATE,XS(D)::QAR2(F),XP(e)
- Tries
- Try
- S(D);
- Vars
- Q(c);N_SPINQ(c),OGATE,XR(C)::R(B),XQ(c)
- Q(c);OGATEB::R(C),XQ(c)
- S(j);N_GUARD::QAB(F),XP(i)
- P(e);N_GUARD::B(A),XS(b)
- Refutation
- P(d);
- Try
- S(D);
- Vars
- Q(c);N_SPINQ(c),OGATE,XR(C)::R(B),XQ(c)
- Q(c);OGATEB::R(C),XQ(c)
- S(j);N_GUARD::QAB(F),XP(i)
- P(e);N_GUARD::B(A),XS(b)
- Refutation
- P(d);
- Try
- S(D);
- Vars
- Q(c);N_SPINQ(c),OGATE,XR(C)::R(B),XQ(c)
- Q(c);OGATEB::R(C),XQ(c)
- S(j);N_GUARD::QAB(F),XP(i)
- P(e);N_GUARD::B(A),XS(b)
- Refutation
- P(d);
- Try
- S(D);
- Vars
- Q(c);N_SPINQ(c),OGATE,XR(C)::R(B),XQ(c)
- Q(c);OGATEB::R(C),XQ(c)
- S(j);N_GUARD::QAB(F),XP(i)
- P(e);N_GUARD::B(A),XS(b)
- Refutation
- P(d);
- Try
- S(D);
- Vars
- Q(c);N_SPINQ(c),OGATE,XR(C)::R(B),XQ(c)
- Q(c);OGATEB::R(C),XQ(c)
- S(j);N_GUARD::QAB(F),XP(i)
- P(e);N_GUARD::B(A),XS(b)
- Refutation
- P(d);
- Try
- R(B);
- Vars
- P(g);OGATE,XS(D)::QAR2(F),XP(e)
- Q(c);OGATEB::R(C),XQ(c)
- P(d);N_GUARD::S(D)
- S(j);N_GUARD::QAB(F),XP(i)
- P(e);N_GUARD::B(A),XS(b)
- Refutation
- Q(c);N_SPINQ(c),XR(C)
- Try
- R(B);XP(a)
- Vars
- Q(c);N_SPINQ(c),OGATE,XR(C)::R(B),XQ(c)
- P(g);OGATE,XS(D)::QAR2(F),XP(e)
- Q(c);OGATEB::R(C),XQ(c)
- P(d);N_GUARD::S(D)
- S(j);N_GUARD::QAB(F),XP(i)
- Refutation
- P(e);
- Try
- R(B);
- Vars
- Q(c);N_SPINQ(c),OGATE,XR(C)::R(B),XQ(c)
- Q(c);OGATEB::R(C),XQ(c)
- P(d);N_GUARD::S(D)
- S(j);N_GUARD::QAB(F),XP(i)
- Refutation
- P(e);
- Try
- R(B);
- Vars
- P(g);OGATE,XS(D)::QAR2(F),XP(e)
- P(d);N_GUARD::S(D)
- S(j);N_GUARD::QAB(F),XP(i)
- P(e);N_GUARD::B(A),XS(b)
- Refutation
- Q(c);N_SPINQ(c),XR(C)
- Try
- R(C);
- Vars
- P(g);OGATE,XS(D)::QAR2(F),XP(e)
- Q(c);OGATEB::R(C),XQ(c)
- P(d);N_GUARD::S(D)
- S(j);N_GUARD::QAB(F),XP(i)
- P(e);N_GUARD::B(A),XS(b)
- Refutation
- Q(c);N_SPINQ(c),XR(C)
- Try
- R(C);
- Vars
- P(g);OGATE,XS(D)::QAR2(F),XP(e)
- P(d);N_GUARD::S(D)
- S(j);N_GUARD::QAB(F),XP(i)
- P(e);N_GUARD::B(A),XS(b)
- Refutation
- Q(c);N_SPINQ(c),XR(C)
- Try
- Q(F);P_PINP(i)
- Vars
- Q(c);N_SPINQ(c),OGATE,XR(C)::R(B),XQ(c)
- Q(c);OGATEB::R(C),XQ(c)
- P(d);N_GUARD::S(D)
- S(j);N_GUARD::QAB(F),XP(i)
- P(e);N_GUARD::B(A),XS(b)
- Refutation
- P(g);XS(D)
- Try
- Q(F);
- Vars
- Q(c);N_SPINQ(c),OGATE,XR(C)::R(B),XQ(c)
- Q(c);OGATEB::R(C),XQ(c)
- P(d);N_GUARD::S(D)
- S(j);N_GUARD::QAB(F),XP(i)
- Refutation
- P(g);XS(D)
- Try
- Q(F);
- Vars
- Q(c);N_SPINQ(c),OGATE,XR(C)::R(B),XQ(c)
- Q(c);OGATEB::R(C),XQ(c)
- P(d);N_GUARD::S(D)
- S(j);N_GUARD::QAB(F),XP(i)
- P(e);N_GUARD::B(A),XS(b)
- Refutation
- P(g);XS(D)
- Try
- Q(F);XS(j)
- Vars
- Q(c);N_SPINQ(c),OGATE,XR(C)::R(B),XQ(c)
- Q(c);OGATEB::R(C),XQ(c)
- P(d);N_GUARD::S(D)
- P(e);N_GUARD::B(A),XS(b)
- Refutation
- P(g);XS(D)
- Try
- Actual
- R(B);N_PINS(b)
- Vars
- Q(c);N_SPINQ(c),OGATE,XR(C)::R(B),XQ(c)
- S(b);N_SPINQ(c),OGATE,XR(C)::B(A)+R(B),XS(b)
- S(b);XP(E)::S(D),XS(b)
- P(g);OGATE,XS(D)::QAR2(F),XP(e)
- Q(c);OGATEB::R(C),XQ(c)
- S(b);OGATEB::B(A)+R(B),XS(b)
- P(d);N_GUARD::S(D)
- S(j);N_GUARD::QAB(F),XP(i)
- P(e);OGATEB::R(B),XP(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).