MESON Chess Problem Database
Problem Display
PID: 201520 (4b1B1/3prr2/3Bn2Q/1P1k1N2/1p4n1/bP3P2/1PNK4/8 w - - 0 1)
Simkhovich, Froim Markovich
L'Alfiere di Re, 1922
#2
10 + 9
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Bxb2
- 2.Sxb4#
- 1...Sf2
- 2.Sce3#
- 1...Sh2
- 2.Sce3#
- 1...Se3
- 2.Scxe3#
- 1...Se5
- 2.Sce3#
- 1...Sf6
- 2.Sce3#
- 1...Sxh6
- 2.Sce3#
- 1...Sd4
- 2.Sxe7#
- 1...Sf4
- 2.Sxe7#
- 1...Sc5
- 2.Sxe7#
- 1...Sg5
- 2.Sxe7#
- 1...Sc7
- 2.Sxe7#
- 1...Sg7
- 2.Sxe7#
- 1...Sd8
- 2.Sxe7#
- 1...Sf8
- 2.Sxe7#
- 1...Bxb2
- Tries
- 1.Kc1?
- 1...Rxf5
- 2.Qd2#
- 1...Sxh6
- 2.Sce3#
- 1...Rf6
- 2.Qd2#
- 1...Rg7
- 2.Qd2#
- 1...Rh7
- 2.Qd2#
- 1...Rf8
- 2.Qd2#
- 1...Sf2
- 2.Sce3#
- 1...Sh2
- 2.Sce3#
- 1...Se3
- 2.Scxe3#
- 1...Se5
- 2.Sce3#
- 1...Sf6
- 2.Sce3#
- 1...Sd4
- 2.Sxe7#
- 1...Sf4
- 2.Sxe7#
- 1...Sc5
- 2.Sxe7#
- 1...Sg5
- 2.Sxe7#
- 1...Sc7
- 2.Sxe7#
- 1...Sg7
- 2.Sxe7#
- 1...Sd8
- 2.Sxe7#
- 1...Sf8
- 2.Sxe7#
- 1...Bxb2+!
- 1...Rxf5
- 1.Kd1?
- 1...Se3+
- 2.Scxe3#
- 1...Rxf5
- 2.Qd2#
- 1...Bxb2
- 2.Sxb4#
- 1...Sxh6
- 2.Sce3#
- 1...Rf6
- 2.Qd2#
- 1...Rg7
- 2.Qd2#
- 1...Rh7
- 2.Qd2#
- 1...Rf8
- 2.Qd2#
- 1...Sh2
- 2.Sce3#
- 1...Se5
- 2.Sce3#
- 1...Sf6
- 2.Sce3#
- 1...Sd4
- 2.Sxe7#
- 1...Sf4
- 2.Sxe7#
- 1...Sc5
- 2.Sxe7#
- 1...Sg5
- 2.Sxe7#
- 1...Sc7
- 2.Sxe7#
- 1...Sg7
- 2.Sxe7#
- 1...Sd8
- 2.Sxe7#
- 1...Sf8
- 2.Sxe7#
- 1...Sf2+!
- 1...Se3+
- 1.Qf6?
- 1...Bxb2
- 2.Sxb4#
- 1...Sxf6
- 2.Sce3#
- 1...Rg7
- 2.Qd4#
- 1...Rh7
- 2.Qd4#
- 1...Rf8
- 2.Qd4#
- 1...Sf2
- 2.Sce3#
- 2.Qe5#
- 1...Sh2
- 2.Sce3#
- 2.Qe5#
- 1...Se3
- 2.Scxe3#
- 2.Qe5#
- 1...Se5
- 2.Sce3#
- 2.Qxe5#
- 1...Sh6
- 2.Sce3#
- 2.Qe5#
- 1...Sd4
- 2.Sxe7#
- 1...Sf4
- 2.Sxe7#
- 1...Sc5
- 2.Sxe7#
- 1...Sg5
- 2.Sxe7#
- 1...Sc7
- 2.Sxe7#
- 1...Sg7
- 2.Sxe7#
- 1...Sd8
- 2.Sxe7#
- 1...Sf8
- 2.Sxe7#
- 1...Rxf6!
- 1...Bxb2
- 1.bxa3?
- threat
- 2.Sxb4#
- 1...bxa3
- 2.Sb4#
- 1...Rxf5!
- threat
- 1.Kc1?
- Keys
- 1.Ke1!
- 1...Sd4+
- 2.Sxe7#
- 1...Sf4+
- 2.Sxe7#
- 1...Sc5+
- 2.Sxe7#
- 1...Sg5+
- 2.Sxe7#
- 1...Sc7+
- 2.Sxe7#
- 1...Sg7+
- 2.Sxe7#
- 1...Sd8+
- 2.Sxe7#
- 1...Sf8+
- 2.Sxe7#
- 1...Rxf5
- 2.Qd2#
- 1...Bxb2
- 2.Sxb4#
- 1...Sxh6
- 2.Sce3#
- 1...Rf6
- 2.Qd2#
- 1...Rg7
- 2.Qd2#
- 1...Rh7
- 2.Qd2#
- 1...Rf8
- 2.Qd2#
- 1...Sf2
- 2.Sce3#
- 1...Sh2
- 2.Sce3#
- 1...Se3
- 2.Scxe3#
- 1...Se5
- 2.Sce3#
- 1...Sf6
- 2.Sce3#
- 1...Sd4+
- 1.Ke1!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 0
- Sets
- B(a);N_GUARD,XP(A)::S(B),XP(b)
- S(c);N_GUARD::S(B)
- S(c);N_GUARD::S(B),XS(c)
- S(c);N_GUARD,XQ(I)::S(B)
- S(e);P_SPINR(h)::S(G),XR(g)
- Tries
- Try
- K(C);P_SPINP(A),S_FLIGHT
- Vars
- R(h);P_SPINS(e),XS(G)::QAR(I)
- S(c);N_GUARD,XQ(I)::S(B)
- R(h);P_SPINS(e)::QAR(I)
- S(c);N_GUARD::S(B)
- S(c);N_GUARD::S(B),XS(c)
- S(e);P_SPINR(h)::S(G),XR(g)
- Refutation
- B(a);CHECK,XP(A)
- Try
- K(C);P-FLIGHT
- Vars
- S(c);CHECK,N_GUARD::S(B),XS(c)
- R(h);P_SPINS(e),XS(G)::QAR(I)
- B(a);N_GUARD,XP(A)::S(B),XP(b)
- S(c);N_GUARD,XQ(I)::S(B)
- R(h);P_SPINS(e)::QAR(I)
- S(c);N_GUARD::S(B)
- S(e);P_SPINR(h)::S(G),XR(g)
- Refutation
- S(c);CHECK
- Try
- Q(I);
- Vars
- B(a);N_GUARD,XP(A)::S(B),XP(b)
- S(c);N_GUARD,XQ(I)::S(B)
- R(h);P_SPINS(e)::QAR1(I)
- S(e);P_SPINR(h)::S(G),XR(g)
- Refutation
- R(h);P_SPINS(e),XQ(I)
- Try
- P(A);XB(a)
- Threat
- S(B),XP(b)
- Vars
- P(b);XP(A)::S(B)
- Refutation
- R(h);P_SPINS(e),XS(G)
- Try
- Actual
- K(C);S_FLIGHT
- Vars
- S(e);CHECK,P_SPINR(h)::S(G),XR(g)
- R(h);P_SPINS(e),XS(G)::QAR(I)
- B(a);N_GUARD,XP(A)::S(B),XP(b)
- S(c);N_GUARD,XQ(I)::S(B)
- R(h);P_SPINS(e)::QAR(I)
- S(c);N_GUARD::S(B)
- S(c);N_GUARD::S(B),XS(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).