MESON Chess Problem Database
Problem Display
PID: 229275 (3R1b2/1p1b2p1/1Pk3P1/R1PN3p/pBQ4K/Pr3P2/B7/8 w - - 0 1)
Toth, Gyula
Magyar Sakkvilag, 1926
#2
12 + 8
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Rb1
- 2.Qb5#
- 1...Rb2
- 2.Qb5#
- 1...Rxa3
- 2.Qb5#
- 1...Rc3
- 2.Qb5#
- 1...Rd3
- 2.Qb5#
- 1...Re3
- 2.Qb5#
- 1...Rxf3
- 2.Qb5#
- 1...Rxb4
- 2.Sxb4#
- 1...Bh3
- 2.Qb5#
- 1...Bg4
- 2.Qb5#
- 1...Bf5
- 2.Qb5#
- 1...Be6
- 2.Qb5#
- 1...Bc8
- 2.Qb5#
- 1...Be8
- 2.Qb5#
- 1...Bxc5
- 2.Qxc5#
- 1...Bd6
- 2.cxd6#
- 1...Be7+
- 2.Sxe7#
- 1...Rb1
- Tries
- 1.Kg5?
- 1...Be7+
- 2.Sxe7#
- 1...Rxa3
- 2.Qb5#
- 1...Rxf3
- 2.Qb5#
- 1...Rxb4
- 2.Sxb4#
- 1...Bxc5
- 2.Qxc5#
- 1...Rb1
- 2.Qb5#
- 1...Rb2
- 2.Qb5#
- 1...Rc3
- 2.Qb5#
- 1...Rd3
- 2.Qb5#
- 1...Re3
- 2.Qb5#
- 1...Bh3
- 2.Qb5#
- 1...Bg4
- 2.Qb5#
- 1...Bf5
- 2.Qb5#
- 1...Be6
- 2.Qb5#
- 1...Bc8
- 2.Qb5#
- 1...Be8
- 2.Qb5#
- 1...Bd6
- 2.cxd6#
- 1...h4!
- 1...Be7+
- 1.Kxh5?
- 1...Rxa3
- 2.Qb5#
- 1...Rxf3
- 2.Qb5#
- 1...Rxb4
- 2.Sxb4#
- 1...Bxc5
- 2.Qxc5#
- 1...Rb1
- 2.Qb5#
- 1...Rb2
- 2.Qb5#
- 1...Rc3
- 2.Qb5#
- 1...Rd3
- 2.Qb5#
- 1...Re3
- 2.Qb5#
- 1...Bh3
- 2.Qb5#
- 1...Bf5
- 2.Qb5#
- 1...Be6
- 2.Qb5#
- 1...Bc8
- 2.Qb5#
- 1...Be8
- 2.Qb5#
- 1...Bd6
- 2.cxd6#
- 1...Be7
- 2.Sxe7#
- 1...Bg4+!
- 1...Rxa3
- 1.Sf4?
- threat
- 2.Qb5#
- 2.Qd5#
- 2.Qe4#
- 1...Rxb4
- 2.Qd5#
- 1...Bxc5
- 2.Qxc5#
- 1...Rd3
- 2.Qb5#
- 1...Re3
- 2.Qb5#
- 2.Qd5#
- 1...Bf5
- 2.Qb5#
- 2.Qd5#
- 1...Be6
- 2.Qb5#
- 1...Be7+!
- threat
- 1.Sf6?
- threat
- 2.Qb5#
- 2.Qd5#
- 2.Qe4#
- 1...Bxc5
- 2.Qxc5#
- 1...gxf6
- 2.Qe4#
- 1...Rd3
- 2.Qb5#
- 1...Re3
- 2.Qb5#
- 2.Qd5#
- 1...Bf5
- 2.Qb5#
- 2.Qd5#
- 1...Be6
- 2.Qb5#
- 1...Rxb4!
- threat
- 1.Bxb3?
- threat
- 2.Bxa4#
- 2.Qb5#
- 1...Be7+
- 2.Sxe7#
- 1...Bxc5
- 2.Qxc5#
- 1...axb3!
- threat
- 1.Qe4?
- threat
- 2.Sc3#
- 2.Se3#
- 2.Sf4#
- 2.Sf6#
- 2.Sc7#
- 2.Se7#
- 1...Be7+
- 2.Sf6#
- 2.Sxe7#
- 1...Rxb4
- 2.Sxb4#
- 2.Se7#
- 1...Rc3
- 2.Sxc3#
- 2.Se3#
- 2.Sf4#
- 2.Sf6#
- 2.Sc7#
- 2.Se7#
- 1...Rd3
- 2.Se7#
- 1...Re3
- 2.Sxe3#
- 2.Se7#
- 1...Bf5
- 2.Se7#
- 1...Be6
- 2.Se7#
- 1...Bxc5!
- threat
- 1.f4?
- 1...Be7+
- 2.Sxe7#
- 1...Rxa3
- 2.Qb5#
- 1...Rxb4
- 2.Sxb4#
- 1...Bxc5
- 2.Qxc5#
- 1...Rb1
- 2.Qb5#
- 1...Rb2
- 2.Qb5#
- 1...Rc3
- 2.Qb5#
- 1...Rd3
- 2.Qb5#
- 1...Re3
- 2.Qb5#
- 1...Rf3
- 2.Qb5#
- 1...Rg3
- 2.Qb5#
- 1...Bh3
- 2.Qb5#
- 1...Bg4
- 2.Qb5#
- 1...Bf5
- 2.Qb5#
- 1...Be6
- 2.Qb5#
- 1...Bc8
- 2.Qb5#
- 1...Be8
- 2.Qb5#
- 1...Bd6
- 2.cxd6#
- 1...Rh3+!
- 1...Be7+
- 1.Kg5?
- Keys
- 1.Qf4!
- 1...Be7+
- 2.Sxe7#
- 1...Kxd5
- 2.Qe4#
- 1...Rxa3
- 2.Qc7#
- 1...Rxf3
- 2.Qc7#
- 1...Rxb4
- 2.Sxb4#
- 1...Bxc5
- 2.Rxc5#
- 1...Rb1
- 2.Qc7#
- 1...Rb2
- 2.Qc7#
- 1...Rc3
- 2.Qc7#
- 1...Rd3
- 2.Qc7#
- 1...Re3
- 2.Qc7#
- 1...Bh3
- 2.Qc7#
- 1...Bg4
- 2.Qc7#
- 1...Bf5
- 2.Qc7#
- 1...Be6
- 2.Qc7#
- 1...Bc8
- 2.Qc7#
- 1...Be8
- 2.Qc7#
- 1...Bd6
- 2.Qxd6#
- 1...Be7+
- 1.Qf4!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 15
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- R(a);::QAB1(E)
- R(a);XP(B)::QAB1(E)
- R(a);XP(C)::QAB1(E)
- R(a);P_PINQ(E),XB(D)::S(I),XR(a)
- B(f);::QAB1(E)
- B(h);OGATE,P_SPINB(h),XP(H)::QAR1(E),XB(h)
- B(h);OGATE::QAR(E)+P(H),XB(h)
- B(h);CHECK,N_GUARD::S(I),XB(h)
- Tries
- Try
- K(F);S_FLIGHT
- Vars
- B(h);CHECK,N_GUARD::S(I),XB(h)
- R(a);XP(B)::QAB1(E)
- R(a);XP(C)::QAB1(E)
- R(a);XB(D)::S(I),XR(a)
- B(h);OGATE,P_SPINB(h),XP(H)::QAR1(E),XB(h)
- R(a);::QAB1(E)
- B(f);::QAB1(E)
- B(h);OGATE::QAR(E)+P(H),XB(h)
- Refutation
- P(c);
- Try
- K(F);P-FLIGHT,XP(c)
- Vars
- R(a);XP(B)::QAB1(E)
- R(a);XP(C)::QAB1(E)
- R(a);XB(D)::S(I),XR(a)
- B(h);OGATE,P_SPINB(h),XP(H)::QAR1(E),XB(h)
- R(a);::QAB1(E)
- B(f);::QAB1(E)
- B(f);P_PINP(K)::QAB1(E)
- B(h);OGATE::QAR(E)+P(H),XB(h)
- B(h);N_GUARD::S(I),XB(h)
- Refutation
- B(f);CHECK
- Try
- S(I);
- Threat
- DUALS(3)
- Vars
- R(a);XB(D)::QAB1(E)
- B(h);OGATE,P_SPINB(h),XP(H)::QAR1(E),XB(h)
- R(a);::QAB1(E)
- B(f);::QAB1(E)
- Refutation
- B(h);CHECK
- Try
- S(I);
- Threat
- DUALS(3)
- Vars
- B(h);OGATE,P_SPINB(h),XP(H)::QAR1(E),XB(h)
- P(g);XS(I)::QAB(E)
- R(a);::QAB1(E)
- B(f);::QAB1(E)
- Refutation
- R(a);P_PINQ(E),XB(D)
- Try
- B(A);XR(a)
- Threat
- DUALS(2)
- Vars
- B(h);CHECK,N_GUARD::S(I),XB(h)
- B(h);OGATE,P_SPINB(h),XP(H)::QAR1(E),XB(h)
- Refutation
- P(b);XB(A)
- Try
- Q(E);
- Threat
- DUALS(6)
- Vars
- R(a);::QAB(E)+S(I),DCHECK
- B(f);::QAB(E)+S(I),DCHECK
- Refutation
- B(h);XP(H)
- Try
- P(C);
- Vars
- B(h);CHECK,N_GUARD::S(I),XB(h)
- R(a);XP(B)::QAB1(E)
- R(a);XB(D)::S(I),XR(a)
- B(h);OGATE,P_SPINB(h),XP(H)::QAR1(E),XB(h)
- R(a);::QAB1(E)
- B(f);::QAB1(E)
- B(h);OGATE::QAR(E)+P(H),XB(h)
- Refutation
- R(a);CHECK
- Try
- Actual
- Q(E);
- Vars
- B(h);CHECK,N_GUARD::S(I),XB(h)
- K(d);OGATEB,P_SPINB(f),P_SPINR(a),S_FLIGHT,XS(I)::QAB1(E)
- R(a);XP(B)::QAR1(E)
- R(a);XP(C)::QAR1(E)
- R(a);P_PINQ(E),XB(D)::S(I),XR(a)
- B(h);OGATE,XP(H)::R1(G),XB(h)
- R(a);::QAR1(E)
- B(f);::QAR1(E)
- B(h);N_GUARD::QAR1(E),XB(h)
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).