MESON Chess Problem Database
Problem Display
PID: 267982 (4Q2n/1pN1Pp2/2R1BknK/1q2r2p/3Rp3/2B3N1/8/4r3 w - - 0 1)
Pavlov, Mikhail Aleksandrovich
Shakhmatnaya kompozitsiya, 1995
#2
9 + 10
SOLUTION
- SOUND
- Sets
- 1...Sxe7
- 2.Qxh8#
- 1...Sxe7
- Tries
- 1.Bxf7+?
- 1...Re6
- 2.Rxe6#
- 1...bxc6
- 2.Rd6#
- 1...Qxc6!
- 1...Re6
- 1.Rd1?
- threat
- 2.Sxh5#
- 1...fxe6
- 2.Rxe6#
- 1...Qe2
- 2.Sd5#
- 1...Rh1
- 2.Sxe4#
- 1...h4
- 2.Sh5#
- 1...Sf4!
- threat
- 1.Rd2?
- threat
- 2.Sxh5#
- 1...fxe6
- 2.Rxe6#
- 1...Qe2
- 2.Sd5#
- 1...Rh1
- 2.Sxe4#
- 1...h4
- 2.Sh5#
- 1...Sf4!
- threat
- 1.Rd3?
- threat
- 2.Sxh5#
- 1...fxe6
- 2.Rxe6#
- 1...Rh1
- 2.Sxe4#
- 1...h4
- 2.Sh5#
- 1...Sf4!
- threat
- 1.Ra4?
- threat
- 2.Sxh5#
- 1...fxe6
- 2.Rxe6#
- 1...Qe2
- 2.Sd5#
- 1...Rh1
- 2.Sxe4#
- 1...h4
- 2.Sh5#
- 1...Sf4!
- threat
- 1.Rb4?
- threat
- 2.Sxh5#
- 1...fxe6
- 2.Rxe6#
- 1...Qe2
- 2.Sd5#
- 1...Rh1
- 2.Sxe4#
- 1...h4
- 2.Sh5#
- 1...Sf4!
- threat
- 1.Rdc4?
- threat
- 2.Sxh5#
- 1...fxe6
- 2.Rxe6#
- 1...Rh1
- 2.Sxe4#
- 1...h4
- 2.Sh5#
- 1...Sf4!
- threat
- 1.Rxe4?
- threat
- 2.Sxh5#
- 1...fxe6
- 2.Rxe6#
- 1...Qe2
- 2.Sd5#
- 1...Sf4
- 2.Rxf4#
- 1...h4
- 2.Sh5#
- 1...Rh1!
- threat
- 1.Rd5?
- threat
- 2.Sxh5#
- 1...fxe6
- 2.Rxe6#
- 1...Rh1
- 2.Sxe4#
- 1...Sf4
- 2.Bxe5#
- 1...h4
- 2.Sh5#
- 1...Qe2!
- threat
- 1.Rdd6?
- threat
- 2.Sxh5#
- 2.Ba2#
- 2.Bb3#
- 2.Bh3#
- 2.Bc4#
- 2.Bg4#
- 2.Bd5#
- 2.Bf5#
- 2.Bd7#
- 2.Bxf7#
- 2.Bc8#
- 1...Qxc6
- 2.Sxh5#
- 1...fxe6
- 2.Rxe6#
- 1...Qe2
- 2.Sd5#
- 2.Ba2#
- 2.Bb3#
- 2.Bh3#
- 2.Bc4#
- 2.Bg4#
- 2.Bd5#
- 2.Bf5#
- 2.Bd7#
- 2.Bxf7#
- 2.Bc8#
- 1...Qd3
- 2.Sxh5#
- 2.Bd5#
- 1...Qc4
- 2.Sxh5#
- 2.Bxc4#
- 2.Bd5#
- 1...Qb3
- 2.Sxh5#
- 2.Bxb3#
- 2.Bc4#
- 2.Bd5#
- 1...Qb4
- 2.Sxh5#
- 2.Sd5#
- 1...Qc5
- 2.Sxh5#
- 1...Qd5
- 2.Sxh5#
- 2.Sxd5#
- 2.Bxd5#
- 1...Rd1
- 2.Sxe4#
- 2.Sxh5#
- 2.Bd5#
- 1...Rh1
- 2.Sxe4#
- 2.Ba2#
- 2.Bb3#
- 2.Bh3#
- 2.Bc4#
- 2.Bg4#
- 2.Bd5#
- 2.Bf5#
- 2.Bd7#
- 2.Bxf7#
- 2.Bc8#
- 1...Sf8
- 2.Sxh5#
- 1...h4
- 2.Sh5#
- 2.Ba2#
- 2.Bb3#
- 2.Bh3#
- 2.Bc4#
- 2.Bg4#
- 2.Bd5#
- 2.Bf5#
- 2.Bd7#
- 2.Bxf7#
- 2.Bc8#
- 1...Sf4!
- threat
- 1.Rd8?
- threat
- 2.Sxh5#
- 1...fxe6
- 2.Rxe6#
- 1...Qe2
- 2.Sd5#
- 1...Rh1
- 2.Sxe4#
- 1...h4
- 2.Sh5#
- 1...Sf4!
- threat
- 1.Qxh8+?
- 1...Kxe7
- 2.Rd7#
- 2.Qd8#
- 1...Sxh8!
- 1...Kxe7
- 1.Bxf7+?
- Keys
- 1.Rd7!
- threat
- 2.Sxh5#
- 1...fxe6
- 2.Rxe6#
- 1...Qe2
- 2.Sd5#
- 1...Rh1
- 2.Sxe4#
- 1...Sf4
- 2.Qxh8#
- 1...h4
- 2.Sh5#
- threat
- 1.Rd7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 1
- Sets
- S(g);N_GUARD,SBLOCK,XP(H)::QAB(I),XS(j)
- Tries
- Try
- B(E);CHECK,XP(i)
- Vars
- R(d);N_GUARD,P_SPINR(d)::R1(D),XR(d)
- P(h);XR(D)::R(C)
- Refutation
- Q(c);XR(D)
- Try
- R(C);P_PINR(d)
- Threat
- S(B),XP(e)
- Vars
- P(i);OGATE,P_SPINP(i),XB(E)::R1(D),XP(i)
- Q(c);N_GUARD::S(G)
- R(a);N_GUARD::S(B),XP(b)
- P(e);::S(B)
- Refutation
- S(g);
- Try
- R(C);P_PINR(d)
- Threat
- S(B),XP(e)
- Vars
- P(i);OGATE,P_SPINP(i),XB(E)::R1(D),XP(i)
- Q(c);N_GUARD::S(G)
- R(a);N_GUARD::S(B),XP(b)
- P(e);::S(B)
- Refutation
- S(g);
- Try
- R(C);P_PINR(d)
- Threat
- S(B),XP(e)
- Vars
- P(i);OGATE,P_SPINP(i),XB(E)::R1(D),XP(i)
- R(a);N_GUARD::S(B),XP(b)
- P(e);::S(B)
- Refutation
- S(g);
- Try
- R(C);P_PINR(d)
- Threat
- S(B),XP(e)
- Vars
- P(i);OGATE,P_SPINP(i),XB(E)::R1(D),XP(i)
- Q(c);N_GUARD::S(G)
- R(a);N_GUARD::S(B),XP(b)
- P(e);::S(B)
- Refutation
- S(g);
- Try
- R(C);P_PINR(d)
- Threat
- S(B),XP(e)
- Vars
- P(i);OGATE,P_SPINP(i),XB(E)::R1(D),XP(i)
- Q(c);N_GUARD::S(G)
- R(a);N_GUARD::S(B),XP(b)
- P(e);::S(B)
- Refutation
- S(g);
- Try
- R(C);P_PINR(d)
- Threat
- S(B),XP(e)
- Vars
- P(i);OGATE,P_SPINP(i),XB(E)::R1(D),XP(i)
- R(a);N_GUARD::S(B),XP(b)
- P(e);::S(B)
- Refutation
- S(g);
- Try
- R(C);P_PINR(d),XP(b)
- Threat
- S(B),XP(e)
- Vars
- P(i);OGATE,P_SPINP(i),XB(E)::R1(D),XP(i)
- Q(c);N_GUARD::S(G)
- S(g);N_GUARD::R(C),XS(g)
- P(e);::S(B)
- Refutation
- R(a);
- Try
- R(C);P_PINR(d)
- Threat
- S(B),XP(e)
- Vars
- P(i);OGATE,P_SPINP(i),XB(E)::R1(D),XP(i)
- R(a);N_GUARD::S(B),XP(b)
- S(g);N_GUARD::B(A),XR(d)
- P(e);::S(B)
- Refutation
- Q(c);
- Try
- R(C);P_PINR(d)
- Threat
- DUALS(11)
- Vars
- Q(c);XR(D)::S(B),XP(e)
- P(i);OGATE,P_SPINP(i),XB(E)::R1(C),XP(i)
- Q(c);::S(B),XP(e)
- S(g);::S(B),XP(e)
- Refutation
- S(g);
- Try
- R(C);P_PINR(d)
- Threat
- S(B),XP(e)
- Vars
- P(i);OGATE,P_SPINP(i),XB(E)::R1(D),XP(i)
- Q(c);N_GUARD::S(G)
- R(a);N_GUARD::S(B),XP(b)
- P(e);::S(B)
- Refutation
- S(g);
- Try
- Q(I);CHECK,XS(j)
- Refutation
- S(g);XQ(I)
- Try
- Actual
- R(C);P_PINR(d)
- Threat
- S(B),XP(e)
- Vars
- P(i);OGATE,P_SPINP(i),XB(E)::R1(D),XP(i)
- Q(c);N_GUARD::S(G)
- R(a);N_GUARD::S(B),XP(b)
- S(g);N_GUARD::QAB(I),XS(j)
- P(e);::S(B)
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Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
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