MESON Chess Problem Database
Problem Display
PID: 201674 (1n1K4/1Pp4p/n6R/r1k1B1P1/P2NP3/1R2Nb2/2p2Q2/2r5 w - - 0 1)
Simay-Molnar, Aladar
Bekes Sakk, 1922
#2
11 + 9
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Qxc2#
- 1...Rb1
- 2.Qxc2#
- 1...Rd1
- 2.Qxc2#
- 1...Re1
- 2.Qxc2#
- 1...Rf1
- 2.Qxc2#
- 1...Rg1
- 2.Qxc2#
- 1...Rh1
- 2.Qxc2#
- 1...Rxa4
- 2.Rb5#
- 1...Rb5
- 2.Rxb5#
- 1...Bd1
- 2.Qf8#
- 1...Bh1
- 2.Qf8#
- 1...Be2
- 2.Qf8#
- 1...Bg2
- 2.Qf8#
- 1...Bxe4
- 2.Qf8#
- 1...Bg4
- 2.Qf8#
- 1...Bh5
- 2.Qf8#
- 1...Sb4
- 2.Rc3#
- 1...Sc6+
- 2.Rxc6#
- 1...Sd7
- 2.Rc6#
- 1...c6
- 2.Se6#
- 1...Ra1
- Tries
- 1.Kc8?
- 1...Rxa4
- 2.Rb5#
- 1...Bxe4
- 2.Qf8#
- 1...Ra1
- 2.Qxc2#
- 1...Rb1
- 2.Qxc2#
- 1...Rd1
- 2.Qxc2#
- 1...Re1
- 2.Qxc2#
- 1...Rf1
- 2.Qxc2#
- 1...Rg1
- 2.Qxc2#
- 1...Rh1
- 2.Qxc2#
- 1...Rb5
- 2.Rxb5#
- 1...Bd1
- 2.Qf8#
- 1...Bh1
- 2.Qf8#
- 1...Be2
- 2.Qf8#
- 1...Bg2
- 2.Qf8#
- 1...Bh5
- 2.Qf8#
- 1...Sb4
- 2.Rc3#
- 1...Sc6
- 2.Se6#
- 2.Rxc6#
- 1...Sd7
- 2.Rc6#
- 1...c6
- 2.Se6#
- 1...Bg4+!
- 1...Rxa4
- 1.Ke8?
- 1...Rxa4
- 2.Rb5#
- 1...Bxe4
- 2.Qf8#
- 1...Ra1
- 2.Qxc2#
- 1...Rb1
- 2.Qxc2#
- 1...Rd1
- 2.Qxc2#
- 1...Re1
- 2.Qxc2#
- 1...Rf1
- 2.Qxc2#
- 1...Rg1
- 2.Qxc2#
- 1...Rh1
- 2.Qxc2#
- 1...Rb5
- 2.Rxb5#
- 1...Bd1
- 2.Qf8#
- 1...Bh1
- 2.Qf8#
- 1...Be2
- 2.Qf8#
- 1...Bg2
- 2.Qf8#
- 1...Bg4
- 2.Qf8#
- 1...Sb4
- 2.Rc3#
- 1...Sc6
- 2.Se6#
- 2.Rxc6#
- 1...Sd7
- 2.Rc6#
- 1...c6
- 2.Se6#
- 1...Bh5+!
- 1...Rxa4
- 1.Bg7?
- 1...Sc6+
- 2.Rxc6#
- 1...Rxa4
- 2.Rb5#
- 1...Bxe4
- 2.Qf8#
- 1...Ra1
- 2.Qxc2#
- 1...Rb1
- 2.Qxc2#
- 1...Rd1
- 2.Qxc2#
- 1...Re1
- 2.Qxc2#
- 1...Rf1
- 2.Qxc2#
- 1...Rg1
- 2.Qxc2#
- 1...Rh1
- 2.Qxc2#
- 1...Rb5
- 2.Rxb5#
- 1...Bd1
- 2.Qf5#
- 2.Qf8#
- 1...Bh1
- 2.Qf5#
- 2.Qf8#
- 1...Be2
- 2.Qf5#
- 2.Qf8#
- 1...Bg2
- 2.Qf5#
- 2.Qf8#
- 1...Bg4
- 2.Qf8#
- 1...Bh5
- 2.Qf5#
- 2.Qf8#
- 1...Sb4
- 2.Rc3#
- 1...Sd7
- 2.Rc6#
- 1...c6!
- 1...Sc6+
- 1.Bh8?
- 1...Sc6+
- 2.Rxc6#
- 1...Rxa4
- 2.Rb5#
- 1...Bxe4
- 2.Qf8#
- 1...Ra1
- 2.Qxc2#
- 1...Rb1
- 2.Qxc2#
- 1...Rd1
- 2.Qxc2#
- 1...Re1
- 2.Qxc2#
- 1...Rf1
- 2.Qxc2#
- 1...Rg1
- 2.Qxc2#
- 1...Rh1
- 2.Qxc2#
- 1...Rb5
- 2.Rxb5#
- 1...Bd1
- 2.Qf5#
- 2.Qf8#
- 1...Bh1
- 2.Qf5#
- 2.Qf8#
- 1...Be2
- 2.Qf5#
- 2.Qf8#
- 1...Bg2
- 2.Qf5#
- 2.Qf8#
- 1...Bg4
- 2.Qf8#
- 1...Bh5
- 2.Qf5#
- 2.Qf8#
- 1...Sb4
- 2.Rc3#
- 1...Sd7
- 2.Rc6#
- 1...c6!
- 1...Sc6+
- 1.Rxa6?
- threat
- 2.Se6#
- 2.Rxa5#
- 1...Sc6+
- 2.Rxc6#
- 1...Rxa4
- 2.Se6#
- 2.Rb5#
- 1...Rxa6
- 2.Rb5#
- 1...Rd1
- 2.Rxa5#
- 2.Qxc2#
- 1...Rb5
- 2.Se6#
- 2.Rxb5#
- 1...Be2
- 2.Se6#
- 2.Qf8#
- 1...Bg4
- 2.Rxa5#
- 2.Qf8#
- 1...Sxa6!
- threat
- 1.Rd6?
- threat
- 2.Se6#
- 2.Rd5#
- 1...Sc6+
- 2.Rxc6#
- 1...Bxe4
- 2.Se6#
- 1...c6
- 2.Se6#
- 1...Rb5
- 2.Se6#
- 2.Rxb5#
- 1...Bg4
- 2.Rd5#
- 1...Sb4
- 2.Se6#
- 2.Rc3#
- 1...cxd6!
- threat
- 1.Qf1?
- threat
- 2.Qc4#
- 1...Sc6+
- 2.Rxc6#
- 1...Rxa4
- 2.Rb5#
- 2.Qb5#
- 1...Be2
- 2.Qf8#
- 1...Rxf1!
- threat
- 1.Qd2?
- threat
- 2.Qc3#
- 2.Qxa5#
- 1...Sc6+
- 2.Rxc6#
- 1...Rxa4
- 2.Rb5#
- 1...Rb5
- 2.Rxb5#
- 2.Qc3#
- 1...Sb4
- 2.Rc3#
- 2.Qc3#
- 2.Qxb4#
- 1...Be2!
- threat
- 1.Qe2?
- threat
- 2.Qc4#
- 1...Sc6+
- 2.Rxc6#
- 1...Rxa4
- 2.Rb5#
- 2.Qb5#
- 1...Bxe2!
- threat
- 1.Qxf3?
- threat
- 2.Qf8#
- 1...Sc6+
- 2.Rxc6#
- 1...Sd7
- 2.Rc6#
- 1...Rf1!
- threat
- 1.Kc8?
- Keys
- 1.Rb2!
- 1...Sc6+
- 2.Rxc6#
- 1...Rxa4
- 2.Rb5#
- 1...Bxe4
- 2.Qf8#
- 1...c6
- 2.Se6#
- 1...Ra1
- 2.Qxc2#
- 1...Rb1
- 2.Qxc2#
- 1...Rd1
- 2.Qxc2#
- 1...Re1
- 2.Qxc2#
- 1...Rf1
- 2.Qxc2#
- 1...Rg1
- 2.Qxc2#
- 1...Rh1
- 2.Qxc2#
- 1...Rb5
- 2.Rxb5#
- 1...Bd1
- 2.Qf8#
- 1...Bh1
- 2.Qf8#
- 1...Be2
- 2.Qf8#
- 1...Bg2
- 2.Qf8#
- 1...Bg4
- 2.Qf8#
- 1...Bh5
- 2.Qf8#
- 1...Sb4
- 2.Sb3#
- 1...Sd7
- 2.Rc6#
- 1...Sc6+
- 1.Rb2!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 1
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- R(a);N_GUARD::QAR(A),XP(b)
- R(a);N_GUARD,P_PINS(E)::QAR(A),XP(b)
- R(d);N_GUARD,XP(D)::R1(B)
- R(d);N_GUARD::R1(B),XR(d)
- B(c);OGATE::QAB(A)
- B(c);OGATE,XP(F)::QAB(A)
- S(f);SBLOCK::R(B)
- S(i);CHECK,N_GUARD::R1(I),XS(i)
- S(i);N_GUARD::R1(I)
- P(g);SBLOCK::S(E)
- Tries
- Try
- K(K);P-FLIGHT
- Vars
- R(d);N_GUARD,XP(D)::R1(B)
- B(c);OGATE,XP(F)::QAB(A)
- R(a);N_GUARD::QAR(A),XP(b)
- R(d);N_GUARD::R1(B),XR(d)
- B(c);OGATE::QAB(A)
- S(f);SBLOCK::R(B)
- S(i);N_GUARD::R1(I)
- P(g);SBLOCK::S(E)
- Refutation
- B(c);CHECK
- Try
- K(K);P-FLIGHT
- Vars
- R(d);N_GUARD,XP(D)::R1(B)
- B(c);OGATE,XP(F)::QAB(A)
- R(a);N_GUARD::QAR(A),XP(b)
- R(d);N_GUARD::R1(B),XR(d)
- B(c);OGATE::QAB(A)
- S(f);SBLOCK::R(B)
- S(i);N_GUARD::R1(I)
- P(g);SBLOCK::S(E)
- Refutation
- B(c);CHECK
- Try
- B(G);
- Vars
- S(i);CHECK,N_GUARD::R1(I),XS(i)
- R(d);N_GUARD,XP(D)::R1(B)
- B(c);OGATE,XP(F)::QAB(A)
- R(a);N_GUARD::QAR(A),XP(b)
- R(a);N_GUARD,P_PINS(E)::QAR(A),XP(b)
- R(d);N_GUARD::R1(B),XR(d)
- B(c);OGATE::QAB(A)
- S(f);SBLOCK::R(B)
- S(i);N_GUARD::R1(I)
- Refutation
- P(g);
- Try
- B(G);
- Vars
- S(i);CHECK,N_GUARD::R1(I),XS(i)
- R(d);N_GUARD,XP(D)::R1(B)
- B(c);OGATE,XP(F)::QAB(A)
- R(a);N_GUARD::QAR(A),XP(b)
- R(a);N_GUARD,P_PINS(E)::QAR(A),XP(b)
- R(d);N_GUARD::R1(B),XR(d)
- B(c);OGATE::QAB(A)
- S(f);SBLOCK::R(B)
- S(i);N_GUARD::R1(I)
- Refutation
- P(g);
- Try
- R(I);XS(f)
- Threat
- DUALS(2)
- Vars
- S(i);CHECK,N_GUARD::R1(I),XS(i)
- R(d);N_GUARD,XR(I)::R1(B)
- Refutation
- S(i);XR(I)
- Try
- R(I);
- Threat
- DUALS(2)
- Vars
- S(i);CHECK,N_GUARD::R1(I),XS(i)
- B(c);XP(F)::S(E)
- P(g);::S(E)
- B(c);::R1(I)
- Refutation
- P(g);XR(I)
- Try
- Q(A);
- Threat
- QAR1(A)
- Vars
- S(i);CHECK,N_GUARD::R1(I),XS(i)
- B(c);OGATE::QAB(A)
- Refutation
- R(a);XQ(A)
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- S(i);CHECK,N_GUARD::R1(I),XS(i)
- R(d);N_GUARD,XP(D)::R1(B)
- Refutation
- B(c);
- Try
- Q(A);
- Threat
- QAR1(A)
- Vars
- S(i);CHECK,N_GUARD::R1(I),XS(i)
- Refutation
- B(c);XQ(A)
- Try
- Q(A);XB(c)
- Threat
- QAB(A)
- Vars
- S(i);CHECK,N_GUARD::R1(I),XS(i)
- S(i);N_GUARD::R1(I)
- Refutation
- R(a);
- Try
- Actual
- R(B);
- Vars
- S(i);CHECK,N_GUARD::R1(I),XS(i)
- R(d);N_GUARD,XP(D)::R1(B)
- B(c);OGATE,XP(F)::QAB(A)
- P(g);SBLOCK::S(E)
- R(a);N_GUARD::QAR(A),XP(b)
- R(a);N_GUARD,P_PINS(E)::QAR(A),XP(b)
- R(d);N_GUARD::R1(B),XR(d)
- B(c);OGATE::QAB(A)
- S(f);SBLOCK::S(E)
- S(i);N_GUARD::R1(I)
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).