MESON Chess Problem Database

Problem Display
PID: 54140 (2Q5/p2p4/8/1b2r3/R1nkB3/3Np1N1/K2P1P2/5n2 w - - 0 1)

Taliani, Alfonso

Schakend Nederland, 1960

2Q5/p2p4/8/1b2r3/R1nkB3/3Np1N1/K2P1P2/5n2

#2

8 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Rc5
      • 2.Qxc5#
    • 1...Re6
      • 2.Qc5#
    • 1...Re7
      • 2.Qc5#
    • 1...Re8
      • 2.Qc5#
    • 1...Sh2
      • 2.fxe3#
    • 1...d5
      • 2.Qc5#
  • Tries
    • 1.Qxd7+?
      • 1...Rd5
        • 2.Qxd5#
      • 1...Bxd7!
    • 1.Qa8?
      • threat
        • 2.Se2#
      • 1...Rxe4
        • 2.Qxe4#
      • 1...Sxg3
        • 2.fxe3#
      • 1...Rd5
        • 2.Qxd5#
      • 1...e2
        • 2.Sxe2#
      • 1...d5
        • 2.Qxa7#
      • 1...Bc6!
  • Keys
    • 1.Qb7!
      • threat
        • 2.Se2#
      • 1...Rxe4
        • 2.Qxe4#
      • 1...Sxg3
        • 2.fxe3#
      • 1...Rd5
        • 2.Qxd5#
      • 1...Bc6
        • 2.Qb2#
      • 1...e2
        • 2.Sxe2#
      • 1...d5
        • 2.Qxa7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 5
    • REMOVED MATES = 5
  • Sets
    • R(f);N_GUARD::QAB1(H),XR(f)
    • R(f);N_GUARD::QAB1(H)
    • S(a);N_GUARD::P(C),XP(b)
    • P(h);S_CUTR(f)::QAB1(H)
  • Tries
    • Try
      • Q(H);CHECK,XP(h)
      • Vars
        • R(f);N_GUARD,P_SPINR(f)::QAR1(H),XR(f)
      • Refutation
        • B(e);XQ(H)
    • Try
      • Q(H);
      • Threat
        • S(E)
      • Vars
        • R(f);OGATE,XB(G)::QAR1(H),XR(f)
        • S(a);N_GUARD,XS(E)::P(C),XP(b)
        • R(f);N_GUARD::QAR1(H),XR(f)
        • P(b);::S(E),XP(b)
        • P(h);S_CUTR(f)::QAB(H),XP(g)
      • Refutation
        • B(e);
  • Actual
    • Q(H);
    • Threat
      • S(E)
    • Vars
      • R(f);OGATE,XB(G)::QAR1(H),XR(f)
      • S(a);N_GUARD,XS(E)::P(C),XP(b)
      • R(f);N_GUARD::QAR1(H),XR(f)
      • B(e);OGATE::QAB(H)
      • P(b);::S(E),XP(b)
      • P(h);S_CUTR(f)::QAB(H),XP(g)
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