MESON Chess Problem Database
Problem Display
PID: 194168 (2N5/2n1R3/rpN5/1p1k1p2/1B2bp2/2R2n2/P3Q3/K7 w - - 0 1)
Breyer, Gyula
Magyar Sakkvilag, 1917
#2
8 + 9
| 6490 | yacpdb | 2019 |
SOLUTION
- SOUND
- Sets
- 1...Rxa2+
- 2.Qxa2#
- 1...Ra3
- 2.Sxb6#
- 1...Ra4
- 2.Sxb6#
- 1...Ra5
- 2.Sxb6#
- 1...Ra7
- 2.Sxb6#
- 1...Ra8
- 2.Sxb6#
- 1...Bb1
- 2.Rd7#
- 1...Bc2
- 2.Rd7#
- 1...Bd3
- 2.Rd7#
- 1...Se1
- 2.Re5#
- 1...Sg1
- 2.Re5#
- 1...Sd2
- 2.Re5#
- 1...Sh2
- 2.Re5#
- 1...Sd4
- 2.Re5#
- 1...Sh4
- 2.Re5#
- 1...Se5
- 2.Rxe5#
- 1...Sg5
- 2.Re5#
- 1...Se6
- 2.Rd7#
- 1...Sa8
- 2.Qxb5#
- 1...Se8
- 2.Qxb5#
- 1...Rxa2+
- Tries
- 1.Kb2?
- 1...Ra3
- 2.Sxb6#
- 1...Ra4
- 2.Sxb6#
- 1...Ra5
- 2.Sxb6#
- 1...Ra7
- 2.Sxb6#
- 1...Ra8
- 2.Sxb6#
- 1...Bb1
- 2.Rd7#
- 1...Bc2
- 2.Rd7#
- 1...Bd3
- 2.Rd7#
- 1...Se1
- 2.Re5#
- 1...Sg1
- 2.Re5#
- 1...Sd2
- 2.Re5#
- 1...Sh2
- 2.Re5#
- 1...Sd4
- 2.Re5#
- 1...Sh4
- 2.Re5#
- 1...Se5
- 2.Rxe5#
- 1...Sg5
- 2.Re5#
- 1...Se6
- 2.Rd7#
- 1...Sa8
- 2.Qxb5#
- 1...Se8
- 2.Qxb5#
- 1...Rxa2+!
- 1...Ra3
- 1.Ba3?
- 1...Ra4
- 2.Sxb6#
- 1...Ra5
- 2.Sxb6#
- 1...Ra7
- 2.Sxb6#
- 1...Ra8
- 2.Sxb6#
- 1...Bb1
- 2.Rd7#
- 1...Bc2
- 2.Rd7#
- 1...Bd3
- 2.Rd7#
- 1...Se1
- 2.Re5#
- 1...Sg1
- 2.Re5#
- 1...Sd2
- 2.Re5#
- 1...Sh2
- 2.Re5#
- 1...Sd4
- 2.Sb4#
- 2.Re5#
- 1...Sh4
- 2.Re5#
- 1...Se5
- 2.Rxe5#
- 1...Sg5
- 2.Re5#
- 1...Se6
- 2.Rd7#
- 1...Sa8
- 2.Qxb5#
- 1...Se8
- 2.Qxb5#
- 1...b4
- 2.Qc4#
- 1...Rxa3!
- 1...Ra4
- 1.Rc1?
- 1...Rxa2+
- 2.Qxa2#
- 1...Ra3
- 2.Sxb6#
- 1...Ra4
- 2.Sxb6#
- 1...Ra5
- 2.Sxb6#
- 1...Ra7
- 2.Sxb6#
- 1...Ra8
- 2.Sxb6#
- 1...Bb1
- 2.Rd7#
- 1...Bd3
- 2.Rd7#
- 1...Se1
- 2.Re5#
- 1...Sg1
- 2.Re5#
- 1...Sd2
- 2.Re5#
- 1...Sh2
- 2.Re5#
- 1...Sd4
- 2.Re5#
- 1...Sh4
- 2.Re5#
- 1...Se5
- 2.Rxe5#
- 1...Sg5
- 2.Re5#
- 1...Se6
- 2.Rd7#
- 1...Sa8
- 2.Qxb5#
- 1...Se8
- 2.Qxb5#
- 1...Bc2!
- 1...Rxa2+
- 1.Re8?
- 1...Rxa2+
- 2.Qxa2#
- 1...Ra3
- 2.Sxb6#
- 1...Ra4
- 2.Sxb6#
- 1...Ra5
- 2.Sxb6#
- 1...Ra7
- 2.Sxb6#
- 1...Ra8
- 2.Sxb6#
- 1...Bb1
- 2.S8e7#
- 2.Rd8#
- 1...Bc2
- 2.S8e7#
- 2.Rd8#
- 1...Bd3
- 2.S8e7#
- 2.Rd8#
- 1...Se1
- 2.Re5#
- 1...Sg1
- 2.Re5#
- 1...Sd2
- 2.Re5#
- 1...Sh2
- 2.Re5#
- 1...Sd4
- 2.Re5#
- 1...Sh4
- 2.Re5#
- 1...Se5
- 2.Rxe5#
- 1...Sg5
- 2.Re5#
- 1...Se6
- 2.S8e7#
- 1...Sa8
- 2.Qxb5#
- 1...Sxe8!
- 1...Rxa2+
- 1.Qd1+?
- 1...Sd2
- 2.Re5#
- 1...Sd4
- 2.Re5#
- 2.Qxd4#
- 1...Bd3!
- 1...Sd2
- 1.Qd3+?
- 1...Sd4
- 2.Re5#
- 2.Qxd4#
- 1...Bxd3!
- 1...Sd4
- 1.Qxf3?
- threat
- 2.Re5#
- 1...Se6
- 2.Rd7#
- 1...Rxa2+!
- threat
- 1.Qd2+?
- 1...Sxd2
- 2.Re5#
- 1...Sd4
- 2.Re5#
- 2.Qxd4#
- 1...Bd3!
- 1...Sxd2
- 1.a3?
- threat
- 2.Qa2#
- 1...Bb1
- 2.Rd7#
- 1...Bc2
- 2.Rd7#
- 1...Bd3
- 2.Rd7#
- 1...Sd2
- 2.Re5#
- 1...Sd4
- 2.Re5#
- 1...Se5
- 2.Rxe5#
- 1...Rxa3+!
- threat
- 1.a4?
- threat
- 2.Qa2#
- 1...Bb1
- 2.Rd7#
- 1...Bc2
- 2.Rd7#
- 1...Bd3
- 2.Rd7#
- 1...Sd2
- 2.Re5#
- 1...Sd4
- 2.Re5#
- 1...Se5
- 2.Rxe5#
- 1...Rxa4+!
- threat
- 1.Kb2?
- Keys
- 1.Qg2!
- 1...Rxa2+
- 2.Qxa2#
- 1...Ra3
- 2.Sxb6#
- 1...Ra4
- 2.Sxb6#
- 1...Ra5
- 2.Sxb6#
- 1...Ra7
- 2.Sxb6#
- 1...Ra8
- 2.Sxb6#
- 1...Bb1
- 2.Re5#
- 1...Bc2
- 2.Re5#
- 1...Bd3
- 2.Re5#
- 1...Se1
- 2.Re5#
- 1...Sg1
- 2.Re5#
- 1...Sd2
- 2.Re5#
- 1...Sh2
- 2.Re5#
- 1...Sd4
- 2.Re5#
- 1...Sh4
- 2.Re5#
- 1...Se5
- 2.Rxe5#
- 1...Sg5
- 2.Re5#
- 1...Se6
- 2.Rd7#
- 1...Sa8
- 2.Qg8#
- 1...Se8
- 2.Qg8#
- 1...Rxa2+
- 1.Qg2!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 5
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- R(g);CHECK,OGATE,XP(B)::QAB(C),XR(g)
- R(g);N_GUARD::S(H),XP(h)
- B(b);::R(G)
- S(a);N_GUARD::R1(G)
- S(a);N_GUARD::R1(G),XS(a)
- S(i);SBLOCK::R(G)
- S(i);N_GUARD::QAR2(C),XP(d)
- Tries
- Try
- K(A);N_SPINP(B),S_FLIGHT
- Vars
- R(g);N_GUARD::S(H),XP(h)
- B(b);::R(G)
- S(a);N_GUARD::R1(G)
- S(a);N_GUARD::R1(G),XS(a)
- S(i);SBLOCK::R(G)
- S(i);N_GUARD::QAR2(C),XP(d)
- Refutation
- R(g);CHECK,XP(B)
- Try
- B(E);N_SPINP(B)
- Vars
- R(g);N_GUARD::S(H),XP(h)
- B(b);::R(G)
- S(a);N_GUARD::R1(G)
- S(a);N_GUARD::R1(G),XS(a)
- S(i);SBLOCK::R(G)
- S(i);N_GUARD::QAR2(C),XP(d)
- P(d);N_GUARD::QAB1(C)
- Refutation
- R(g);P_PINP(B),XB(E)
- Try
- R(D);
- Vars
- R(g);CHECK,OGATE,XP(B)::QAB(C),XR(g)
- R(g);N_GUARD::S(H),XP(h)
- B(b);::R(G)
- S(a);N_GUARD::R1(G)
- S(a);N_GUARD::R1(G),XS(a)
- S(i);SBLOCK::R(G)
- S(i);N_GUARD::QAR2(C),XP(d)
- Refutation
- B(b);
- Try
- R(G);
- Vars
- R(g);CHECK,OGATE,XP(B)::QAB(C),XR(g)
- R(g);N_GUARD::S(H),XP(h)
- S(a);N_GUARD::R1(G)
- S(a);N_GUARD::R1(G),XS(a)
- S(i);SBLOCK::S(H)
- S(i);N_GUARD::QAR2(C),XP(d)
- Refutation
- S(i);XR(G)
- Try
- Q(C);CHECK
- Vars
- S(a);P_SPINS(a)::R1(G)
- Refutation
- B(b);P_SPINB(b)
- Try
- Q(C);CHECK
- Refutation
- B(b);XQ(C)
- Try
- Q(C);P_PINB(b),XS(a)
- Threat
- R1(G)
- Vars
- S(i);SBLOCK::R(G)
- Refutation
- R(g);CHECK,XP(B)
- Try
- Q(C);CHECK
- Vars
- S(a);XQ(C)::R1(G)
- Refutation
- B(b);P_SPINB(b)
- Try
- P(B);
- Threat
- QAB(C)
- Vars
- B(b);::R(G)
- S(a);N_GUARD::R1(G)
- S(a);N_GUARD::R1(G),XS(a)
- Refutation
- R(g);CHECK,XP(B)
- Try
- P(B);
- Threat
- QAB(C)
- Vars
- B(b);::R(G)
- S(a);N_GUARD::R1(G)
- S(a);N_GUARD::R1(G),XS(a)
- Refutation
- R(g);CHECK,XP(B)
- Try
- Actual
- Q(C);
- Vars
- R(g);CHECK,OGATE,XP(B)::QAB(C),XR(g)
- R(g);N_GUARD::S(H),XP(h)
- B(b);P_SPINS(a)::R1(G)
- S(a);N_GUARD,P_SPINB(b)::R1(G)
- S(a);N_GUARD,P_SPINB(b)::R1(G),XS(a)
- S(i);SBLOCK::R(G)
- S(i);N_GUARD::QAB(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).