MESON Chess Problem Database

Problem Display
PID: 185805 (7K/p7/bnQ2B2/4p3/1PNk2N1/R1r3b1/B3P3/q4r1n w - - 0 1)

Armeni, Alberto

3rd Prize, Problem Observer, 2016

7K/p7/bnQ2B2/4p3/1PNk2N1/R1r3b1/B3P3/q4r1n

#2

9 + 10

136 Problem Observer 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Rf4
      • 2.Bxe5#
    • 1...Rc1
      • 2.Rd3#
      • 2.e3#
    • 1...Rc2
      • 2.Rd3#
      • 2.e3#
    • 1...Rd3
      • 2.Rxd3#
    • 1...Rxc4
      • 2.Rd3#
      • 2.e3#
    • 1...Be1
      • 2.Bxe5#
    • 1...Bf2
      • 2.Bxe5#
    • 1...Bh4
      • 2.Bxe5#
  • Keys
    • 1.Sd6!
      • threat
        • 2.Qe4#
      • 1...Rxa3
        • 2.Qc5#
      • 1...Rxc6
        • 2.e3#
      • 1...Qb1
        • 2.Qxc3#
      • 1...Rf4
        • 2.Bxe5#
      • 1...Rb3
        • 2.Qc5#
      • 1...Re3
        • 2.Qc5#
      • 1...Bd3
        • 2.e3#
      • 1...Bb7
        • 2.Sb5#
      • 1...Sf2
        • 2.Sf5#
      • 1...Sd5
        • 2.Qxd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 4
  • Sets
    • R(b);S_CUTB(e)::B(H),XP(g)
    • R(d);OGATE::R1(C),XR(d)
    • B(e);N_GUARD::B(H),XP(g)
  • Actual
    • S(E);
    • Threat
      • QAR1(G)
    • Vars
      • R(d);N_GUARD,XR(C)::QAB1(G)
      • R(d);N_GUARD,XQ(G)::P(B)
      • Q(a);N_GUARD::QAB1(G),XR(d)
      • R(b);S_CUTB(e)::B(H),XP(g)
      • R(d);N_GUARD::QAB1(G)
      • B(h);SBLOCK,S_CUTR(d)::P(B)
      • B(h);N_GUARD::S(E)
      • S(c);S_CUTR(b)::S(E)
      • S(i);N_GUARD::QAR1(G),XS(i)
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