MESON Chess Problem Database

Problem Display
PID: 232865 (2Q5/1KP2p2/1p1p4/P2kNn2/R2P4/p1R2P1N/4r1n1/2b1rBB1 w - - 0 1)

Morra, Juan Carlos

Il Due Mosse, 1954

2Q5/1KP2p2/1p1p4/P2kNn2/R2P4/p1R2P1N/4r1n1/2b1rBB1

#2

12 + 10

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Ra2
      • 2.Bc4#
    • 1...Rb2
      • 2.Bc4#
    • 1...Rc2
      • 2.Bc4#
    • 1...Rd2
      • 2.Bc4#
    • 1...Re4
      • 2.Bc4#
    • 1...Rxe5
      • 2.Bc4#
    • 1...Sge3
      • 2.Sf4#
    • 1...bxa5
      • 2.Rxa5#
    • 1...f6
      • 2.Qg8#
  • Tries
    • 1.Sg4?
      • threat
        • 2.Sf6#
      • 1...Sxd4
        • 2.Rxd4#
      • 1...Re6
        • 2.Bc4#
      • 1...f6
        • 2.Sxf6#
      • 1...Bg5!
  • Keys
    • 1.Sc6!
      • threat
        • 2.Sb4#
      • 1...Sxd4
        • 2.Rxd4#
      • 1...bxa5
        • 2.Rxa5#
      • 1...Rb2
        • 2.Bc4#
      • 1...Rf2
        • 2.Bc4#
      • 1...Re3
        • 2.Bc4#
      • 1...Be3
        • 2.Qxf5#
      • 1...Sge3
        • 2.Sf4#
      • 1...Sfe3
        • 2.Se7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 6
  • Sets
    • R(c);OGATE::B(A)
    • R(c);OGATE,XS(I)::B(A)
    • S(d);N_GUARD,S_CUTB(a)::S(E)
    • P(h);OGATE,XP(H)::R(F),XP(h)
    • P(j);OGATEB::QAB(L)
  • Tries
    • Try
      • S(I);
      • Threat
        • S(I)
      • Vars
        • S(g);OGATE,XP(G)::R1(F),XS(g)
        • R(c);OGATE::B(A)
        • P(j);::S(I),XP(j)
      • Refutation
        • B(a);
  • Actual
    • S(I);
    • Threat
      • S(I)
    • Vars
      • S(g);OGATE,XP(G)::R1(F),XS(g)
      • P(h);OGATE,XP(H)::R(F),XP(h)
      • R(c);OGATE::B(A)
      • B(a);S_CUTR(c)::QAR2(L),XS(g)
      • S(d);N_GUARD,S_CUTB(a)::S(E)
      • S(g);N_GUARD,S_CUTR(c)::S(I)
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