MESON Chess Problem Database
Problem Display
PID: 201579 (8/1pQNp3/1Pn1P2p/b2b3R/Pkpr4/2Rp4/1N1K2p1/6B1 w - - 0 1)
Papp, Jeno
Magyar Sakkvilag, 1922
#2
10 + 11
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Re4
- 2.Bc5#
- 1...Rf4
- 2.Bc5#
- 1...Rg4
- 2.Bc5#
- 1...Rh4
- 2.Bc5#
- 1...Bxb6
- 2.Qxb6#
- 1...Bf3
- 2.Rb5#
- 1...Be4
- 2.Rb5#
- 1...Bxe6
- 2.Rb5#
- 1...Se5
- 2.Qc5#
- 1...Sa7
- 2.Qc5#
- 1...Sb8
- 2.Qc5#
- 1...Sd8
- 2.Qc5#
- 1...Re4
- Tries
- 1.Rxd5?
- threat
- 2.Rb5#
- 1...Sa7
- 2.Qc5#
- 1...Rxd5!
- threat
- 1.Re5?
- 1...Bxb6
- 2.Qxb6#
- 1...Bxe6
- 2.Rb5#
- 1...Sxe5
- 2.Qc5#
- 1...Re4
- 2.Bc5#
- 1...Rf4
- 2.Bc5#
- 1...Rg4
- 2.Bc5#
- 1...Rh4
- 2.Bc5#
- 1...Bf3
- 2.Rb5#
- 1...Be4
- 2.Rb5#
- 1...Sa7
- 2.Qc5#
- 1...Sb8
- 2.Qc5#
- 1...Sd8
- 2.Qc5#
- 1...h5!
- 1...Bxb6
- 1.Rf5?
- 1...Bxb6
- 2.Qxb6#
- 1...Bxe6
- 2.Rb5#
- 1...Re4
- 2.Bc5#
- 1...Rf4
- 2.Bc5#
- 1...Rg4
- 2.Bc5#
- 1...Rh4
- 2.Bc5#
- 1...Bf3
- 2.Rb5#
- 1...Be4
- 2.Rb5#
- 1...Se5
- 2.Qc5#
- 1...Sa7
- 2.Qc5#
- 1...Sb8
- 2.Qc5#
- 1...Sd8
- 2.Qc5#
- 1...h5!
- 1...Bxb6
- 1.Qd8?
- 1...Bxb6
- 2.Qxb6#
- 1...Bxe6
- 2.Rb5#
- 1...Re4
- 2.Bc5#
- 1...Rf4
- 2.Bc5#
- 1...Rg4
- 2.Bc5#
- 1...Rh4
- 2.Bc5#
- 1...Bf3
- 2.Rb5#
- 1...Be4
- 2.Rb5#
- 1...Se5
- 2.Qxe7#
- 1...Sa7
- 2.Qxe7#
- 1...Sb8
- 2.Qxe7#
- 1...Sxd8!
- 1...Bxb6
- 1.Qc8?
- 1...Bxe6
- 2.Rb5#
- 1...Re4
- 2.Bc5#
- 1...Rf4
- 2.Bc5#
- 1...Rg4
- 2.Bc5#
- 1...Rh4
- 2.Bc5#
- 1...Bf3
- 2.Rb5#
- 1...Be4
- 2.Rb5#
- 1...Se5
- 2.Qc5#
- 1...Sa7
- 2.Qc5#
- 1...Sb8
- 2.Qc5#
- 1...Sd8
- 2.Qc5#
- 1...Bxb6!
- 1...Bxe6
- 1.Rxd5?
- Keys
- 1.Sf6!
- 1...Kc5
- 2.Sxd3#
- 1...Bxb6
- 2.Qxb6#
- 1...Bxe6
- 2.Rb5#
- 1...exf6
- 2.Qd6#
- 1...Re4
- 2.Sxd5#
- 1...Rf4
- 2.Sxd5#
- 1...Rg4
- 2.Sxd5#
- 1...Rh4
- 2.Sxd5#
- 1...Bf3
- 2.Rb5#
- 1...Be4
- 2.Rb5#
- 1...Se5
- 2.Qxe7#
- 1...Sa7
- 2.Qxe7#
- 1...Sb8
- 2.Qxe7#
- 1...Sd8
- 2.Qxe7#
- 1...Kc5
- 1.Sf6!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 8
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- R(e);OGATE::B(A)
- B(f);OGATE,XP(G)::QAR2(I),XB(f)
- B(g);OGATE::R1(F)
- B(g);OGATE,XP(H)::R1(F)
- S(h);OGATE::QAB1(I)
- Tries
- Try
- R(F);XB(g)
- Threat
- R1(F)
- Vars
- S(h);OGATE::QAB1(I)
- Refutation
- R(e);XR(F)
- Try
- R(F);
- Vars
- B(f);OGATE,XP(G)::QAR2(I),XB(f)
- B(g);OGATE,XP(H)::R1(F)
- S(h);OGATE,XR(F)::QAB1(I)
- R(e);OGATE::B(A)
- B(g);OGATE::R1(F)
- S(h);OGATE::QAB1(I)
- Refutation
- P(i);
- Try
- R(F);
- Vars
- B(f);OGATE,XP(G)::QAR2(I),XB(f)
- B(g);OGATE,XP(H)::R1(F)
- R(e);OGATE::B(A)
- B(g);OGATE::R1(F)
- S(h);OGATE::QAB1(I)
- Refutation
- P(i);
- Try
- Q(I);
- Vars
- B(f);OGATE,XP(G)::QAR2(I),XB(f)
- B(g);OGATE,XP(H)::R1(F)
- R(e);OGATE::B(A)
- B(g);OGATE::R1(F)
- S(h);N_GUARD::QAB(I),XP(k)
- Refutation
- S(h);XQ(I)
- Try
- Q(I);
- Vars
- B(g);OGATE,XP(H)::R1(F)
- R(e);OGATE::B(A)
- B(g);OGATE::R1(F)
- S(h);OGATE::QAB1(I)
- Refutation
- B(f);XP(G)
- Try
- Actual
- S(J);
- Vars
- K(c);P_PINR(D),P_SPINB(g),P_SPINP(d),P_SPINR(e),P_SPINS(h),S_FLIGHT::S(B),XP(b)
- B(f);OGATE,XP(G)::QAR2(I),XB(f)
- B(g);OGATE,XP(H)::R1(F)
- P(k);N_GUARD,XS(J)::QAB(I)
- R(e);N_GUARD::S(J),XB(g)
- B(g);OGATE::R1(F)
- S(h);N_GUARD::QAB(I),XP(k)
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).