MESON Chess Problem Database
Problem Display
PID: 231388 (8/3N4/7B/2P3r1/2pkB2b/K4Pp1/P2pQ1P1/3r4 w - - 0 1)
Fleck, Ferenc
4th Prize, Nepszava, 1927
#2
9 + 7
| 6490 | yacpdb | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Kc3
- 2.Qe3#
- 1...Ra1
- 2.Qxd2#
- 1...Rb1
- 2.Qxd2#
- 1...Rc1
- 2.Qxd2#
- 1...Re1
- 2.Qxd2#
- 1...Rf1
- 2.Qxd2#
- 1...Rg1
- 2.Qxd2#
- 1...Rh1
- 2.Qxd2#
- 1...Rg4
- 2.Qe3#
- 1...Rxc5
- 2.Qe3#
- 1...Rd5
- 2.Qe3#
- 1...Re5
- 2.Qe3#
- 1...Rf5
- 2.Qe3#
- 1...Rh5
- 2.Qe3#
- 1...Rg6
- 2.Qe3#
- 1...Rg7
- 2.Qe3#
- 1...Rg8
- 2.Qe3#
- 1...c3
- 2.Qd3#
- 1...Kc3
- Tries
- 1.Ka4?
- 1...Rxc5
- 2.Qe3#
- 1...Ra1
- 2.Qxd2#
- 1...Rb1
- 2.Qxd2#
- 1...Rc1
- 2.Qxd2#
- 1...Re1
- 2.Qxd2#
- 1...Rf1
- 2.Qxd2#
- 1...Rg1
- 2.Qxd2#
- 1...Rh1
- 2.Qxd2#
- 1...Rg4
- 2.Qe3#
- 1...Rd5
- 2.Qe3#
- 1...Re5
- 2.Qe3#
- 1...Rf5
- 2.Qe3#
- 1...Rh5
- 2.Qe3#
- 1...Rg6
- 2.Qe3#
- 1...Rg7
- 2.Qe3#
- 1...Rg8
- 2.Qe3#
- 1...c3
- 2.Qd3#
- 1...Kc3!
- 1...Rxc5
- 1.Kb4?
- 1...Rxc5
- 2.Be3#
- 2.Qe3#
- 1...Ra1
- 2.Qxd2#
- 1...Rc1
- 2.Qxd2#
- 1...Re1
- 2.Qxd2#
- 1...Rf1
- 2.Qxd2#
- 1...Rg1
- 2.Qxd2#
- 1...Rh1
- 2.Qxd2#
- 1...Rg4
- 2.Be3#
- 2.Qxc4#
- 2.Qe3#
- 1...Rd5
- 2.Be3#
- 2.Qxc4#
- 2.Qe3#
- 1...Re5
- 2.Be3#
- 2.Qxc4#
- 2.Qe3#
- 1...Rf5
- 2.Be3#
- 2.Qxc4#
- 2.Qe3#
- 1...Rh5
- 2.Be3#
- 2.Qxc4#
- 2.Qe3#
- 1...Rg6
- 2.Be3#
- 2.Qxc4#
- 2.Qe3#
- 1...Rg7
- 2.Be3#
- 2.Qxc4#
- 2.Qe3#
- 1...Rg8
- 2.Be3#
- 2.Qxc4#
- 2.Qe3#
- 1...c3
- 2.Qd3#
- 1...Rb1+!
- 1...Rxc5
- 1.Bf5?
- threat
- 2.Qe5#
- 1...Kc3
- 2.Qe3#
- 2.Qe5#
- 1...Kd5
- 2.Qe4#
- 1...Re1
- 2.Qxd2#
- 1...c3
- 2.Qd3#
- 2.Qe4#
- 1...Rxf5!
- threat
- 1.Bxg5?
- threat
- 2.Qe3#
- 1...Kc3
- 2.Qe3#
- 1...Re1
- 2.Qxd2#
- 1...c3
- 2.Be3#
- 2.Qd3#
- 1...Bxg5!
- threat
- 1.Bg7+?
- 1...Re5
- 2.Bxe5#
- 1...Rxg7!
- 1...Re5
- 1.Qf2+?
- 1...Kc3
- 2.Qe3#
- 1...gxf2!
- 1...Kc3
- 1.c6?
- 1...Kc3
- 2.Qe3#
- 1...Re5
- 2.Qe3#
- 1...Ra1
- 2.Qxd2#
- 1...Rb1
- 2.Qxd2#
- 1...Rc1
- 2.Qxd2#
- 1...Re1
- 2.Qxd2#
- 1...Rf1
- 2.Qxd2#
- 1...Rg1
- 2.Qxd2#
- 1...Rh1
- 2.Qxd2#
- 1...Rg4
- 2.Qe3#
- 1...Rb5
- 2.Qe3#
- 1...Rc5
- 2.Qe3#
- 1...Rd5
- 2.Qe3#
- 1...Rf5
- 2.Qe3#
- 1...Rh5
- 2.Qe3#
- 1...Rg6
- 2.Qe3#
- 1...Rg7
- 2.Qe3#
- 1...Rg8
- 2.Qe3#
- 1...c3
- 2.Qd3#
- 1...Ra5+!
- 1...Kc3
- 1.Ka4?
- Keys
- 1.Bd5!
- 1...Kc3
- 2.Qxc4#
- 1...Kxd5
- 2.Qe4#
- 1...Rxd5
- 2.Qe3#
- 1...Ra1
- 2.Qxd2#
- 1...Rb1
- 2.Qxd2#
- 1...Rc1
- 2.Qxd2#
- 1...Re1
- 2.Qxd2#
- 1...Rf1
- 2.Qxd2#
- 1...Rg1
- 2.Qxd2#
- 1...Rh1
- 2.Qxd2#
- 1...Rg4
- 2.Qxc4#
- 1...Re5
- 2.Qxc4#
- 1...Rf5
- 2.Qxc4#
- 1...Rh5
- 2.Qxc4#
- 1...Rg6
- 2.Qxc4#
- 1...Rg7
- 2.Qxc4#
- 1...Rg8
- 2.Qxc4#
- 1...c3
- 2.Qe4#
- 1...Kc3
- 1.Bd5!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 9
- ADDED MATES = 1
- REMOVED MATES = 1
- Sets
- K(e);S_FLIGHT::QAR2(B)
- R(a);N_GUARD,P_PINP(A)::QAR2(B),XP(b)
- R(a);N_GUARD::QAR2(B),XP(b)
- R(g);::QAB1(B)
- R(g);XP(G)::QAB1(B)
- P(d);N_GUARD::QAR1(B)
- Tries
- Try
- K(D);P-FLIGHT
- Vars
- R(g);XP(G)::QAB1(B)
- R(a);N_GUARD,P_PINP(A)::QAR2(B),XP(b)
- R(a);N_GUARD::QAR2(B),XP(b)
- R(g);::QAB1(B)
- P(d);N_GUARD::QAR1(B)
- Refutation
- K(e);S_FLIGHT
- Try
- K(D);S_FLIGHT
- Vars
- R(a);N_GUARD::QAR2(B),XP(b)
- P(d);N_GUARD::QAR1(B)
- Refutation
- R(a);CHECK
- Try
- B(F);
- Threat
- QAB1(B)
- Vars
- K(e);P-FLIGHT::QAB1(B)
- R(a);N_GUARD::QAR2(B),XP(b)
- Refutation
- R(g);XB(F)
- Try
- B(H);XR(g)
- Threat
- QAB1(B)
- Vars
- K(e);S_FLIGHT::QAR2(B)
- R(a);N_GUARD::QAR2(B),XP(b)
- Refutation
- B(f);XB(H)
- Try
- B(H);CHECK
- Vars
- R(g);N_GUARD,P_SPINR(g)::B(H),XR(g)
- Refutation
- R(g);XB(H)
- Try
- Q(B);CHECK
- Vars
- K(e);S_FLIGHT::QAR2(B)
- Refutation
- P(c);XQ(B)
- Try
- P(G);
- Vars
- K(e);S_FLIGHT::QAR2(B)
- R(g);::QAB1(B)
- R(a);N_GUARD,P_PINP(A)::QAR2(B),XP(b)
- R(a);N_GUARD::QAR2(B),XP(b)
- P(d);N_GUARD::QAR1(B)
- Refutation
- R(g);CHECK
- Try
- Actual
- B(F);
- Vars
- K(e);S_FLIGHT::QAR1(B),XP(d)
- K(e);P-FLIGHT,XB(F)::QAB1(B)
- R(g);SBLOCK,XB(F)::QAB1(B)
- R(a);N_GUARD,P_PINP(A)::QAR2(B),XP(b)
- R(a);N_GUARD::QAR2(B),XP(b)
- R(g);::QAR1(B),XP(d)
- P(d);SBLOCK::QAR1(B)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
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