MESON Chess Problem Database
Problem Display
PID: 269355 (4nr2/4Qp2/B2Pb3/P1k1q1Rr/1N1NP3/P1P1K1p1/2R5/2n3B1 w - - 0 1)
Chicco, Adriano
5th HM., Shakhmatny Listok, 1931
#2
13 + 9
| 15601 | Albrecht-Leiss-Degener Collection | 2023 |
SOLUTION
- SOUND
- Sets
- 1...Bh3
- 2.Qxe5#
- 1...Bg4
- 2.Qxe5#
- 1...Bf5
- 2.Qxe5#
- 1...Bd7
- 2.Qxe5#
- 1...Bc8
- 2.Qxe5#
- 1...Sa2
- 2.Sd3#
- 1...Se2
- 2.Sd3#
- 1...Sb3
- 2.Sd3#
- 1...Sd3
- 2.Sxd3#
- 1...Sxd6
- 2.Qa7#
- 2.Qc7#
- 1...Sf6
- 2.Qc7#
- 2.d7#
- 1...Sc7
- 2.Qxc7#
- 2.dxc7#
- 2.d7#
- 1...Sg7
- 2.Qc7#
- 2.d7#
- 1...f6
- 2.Sxe6#
- 1...Bh3
- Tries
- 1.Kf3?
- threat
- 2.Se2#
- 2.Sb3#
- 2.Sdc6#
- 2.Sxe6#
- 1...Qf5+
- 2.Sxf5#
- 1...Qxg5
- 2.Sb3#
- 2.Sxe6#
- 1...Rxg5
- 2.Sb3#
- 2.Sxe6#
- 1...Rh1
- 2.Sb3#
- 2.Sxe6#
- 1...Rh2
- 2.Sb3#
- 2.Sxe6#
- 1...Ba2
- 2.Se2#
- 2.Sb3#
- 2.Sdc6#
- 2.Se6#
- 1...Bb3
- 2.Se2#
- 2.Sxb3#
- 2.Sdc6#
- 2.Se6#
- 1...Bh3
- 2.Se2#
- 2.Sb3#
- 2.Sdc6#
- 2.Se6#
- 2.Qxe5#
- 1...Bc4
- 2.Se2#
- 2.Sb3#
- 2.Sb5#
- 2.Sdc6#
- 2.Se6#
- 1...Bd5
- 2.Sb3#
- 2.Se6#
- 1...Bf5
- 2.Sb3#
- 2.Se6#
- 2.Qxe5#
- 1...Bd7
- 2.Se2#
- 2.Sb3#
- 2.Sdc6#
- 2.Se6#
- 2.Qxe5#
- 1...Bc8
- 2.Se2#
- 2.Sb3#
- 2.Sdc6#
- 2.Se6#
- 2.Qxe5#
- 1...Se2
- 2.Sd3#
- 2.Sxe2#
- 2.Sb3#
- 2.Sxe6#
- 1...Sb3
- 2.Sd3#
- 2.Sxb3#
- 2.Sxe6#
- 1...Sd3
- 2.Sxd3#
- 2.Sb3#
- 2.Sxe6#
- 1...f5
- 2.Sb3#
- 2.Sxe6#
- 1...Bg4+!
- threat
- 1.Sb3+?
- 1...Bxb3
- 2.Kd2#
- 2.Kf3#
- 1...Sxb3!
- 1...Bxb3
- 1.Bb5?
- threat
- 2.Sa6#
- 1...Bc8
- 2.Qxe5#
- 1...Sc7
- 2.Qxc7#
- 2.dxc7#
- 2.d7#
- 1...Qxg5+!
- threat
- 1.Qd8?
- threat
- 2.Qb6#
- 1...Sc7
- 2.Qxc7#
- 1...Qxg5+!
- threat
- 1.Kf3?
- Keys
- 1.Sf5!
- threat
- 2.Qa7#
- 1...Qxc3+
- 2.Kf4#
- 1...Qd4+
- 2.cxd4#
- 1...Qf4+
- 2.Kxf4#
- 1...Qxe4+
- 2.Kxe4#
- 1...Qxd6
- 2.Kf3#
- 1...Qxf5
- 2.Kd2#
- 1...Bxf5
- 2.Qxe5#
- 1...Bd7
- 2.Qxe5#
- 1...Sc7
- 2.Qxc7#
- threat
- 1.Sf5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 7
- REMOVED MATES = 8
- Sets
- B(f);OGATE::QAR2(M),XQ(d)
- B(f);N_SPINQ(d),OGATE::QAR2(M),XQ(d)
- S(a);N_GUARD::S(F)
- S(a);N_GUARD::S(F),XS(a)
- P(g);N_GUARD::S(G),XB(f)
- Tries
- Try
- K(E);N_SPINP(H),P-FLIGHT
- Threat
- DUALS(4)
- Vars
- Q(d);CHECK,N_GUARD::B(A)+S(G),XQ(d)
- Refutation
- B(f);CHECK
- Try
- S(G);CHECK
- Refutation
- S(a);XS(G)
- Try
- B(K);
- Threat
- S(F)
- Vars
- B(f);OGATE::QAR2(M),XQ(d)
- Refutation
- Q(d);CHECK,N_PINP(H),N_SPINQ(d),XR(J)
- Try
- Q(M);
- Threat
- QAB1(M)
- Vars
- S(h);N_GUARD::QAR2(M),XS(h)
- Refutation
- Q(d);CHECK,N_PINP(H),N_SPINQ(d),XR(J)
- Try
- Actual
- S(G);N_PINQ(d)
- Threat
- QAB(M)
- Vars
- Q(d);CHECK,N_PINP(H),P_SPINQ(d),XP(D)::B(A)+K(E)
- Q(d);CHECK,N_PINP(H),OGATE::R(B)+P(D)DCHECK,XQ(d)
- Q(d);CHECK,N_PINP(H)::B(A)+K(E),XQ(d)
- Q(d);CHECK,XP(H)::B(A)+K(E),XQ(d)
- Q(d);N_GUARD,N_PINP(H),P_SPINQ(d),XP(L)::B(A)+K(E)
- Q(d);N_GUARD,N_PINP(H),P_SPINQ(d),XS(G)::B(A)+K(E)
- B(f);OGATE,XS(G)::QAR2(M),XQ(d)
- B(f);OGATE::QAR2(M),XQ(d)
- S(h);N_GUARD::QAR2(M),XS(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).