MESON Chess Problem Database

Problem Display
PID: 243624 (8/4b1pQ/1N3r1P/2R2n1r/4kPRn/KN2P1p1/3PP3/8 w - - 0 1)

Balcu, Silviu

Revista Romana de Sah, 1955

8/4b1pQ/1N3r1P/2R2n1r/4kPRn/KN2P1p1/3PP3/8

#2

11 + 8

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rg5
      • 2.fxg5#
    • 1...Rd6
      • 2.Re5#
    • 1...Bxc5+
      • 2.Sxc5#
    • 1...Bd8
      • 2.Rc4#
      • 2.Re5#
    • 1...g5
      • 2.fxg5#
  • Tries
    • 1.Rxg3?
      • threat
        • 2.d3#
      • 1...Bxc5+
        • 2.Sxc5#
      • 1...Rd6
        • 2.Re5#
      • 1...Sf3!
  • Keys
    • 1.Qg8!
      • threat
        • 2.Qd5#
      • 1...Bxc5+
        • 2.Sxc5#
      • 1...Sxe3
        • 2.d3#
      • 1...Sxh6
        • 2.Qc4#
      • 1...Rd6
        • 2.Re5#
      • 1...Re6
        • 2.Qxe6#
      • 1...Rf7
        • 2.Qa8#
      • 1...Sd4
        • 2.f5#
      • 1...Sd6
        • 2.f5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 2
  • Sets
    • R(e);OGATE::R(G)+P(F),XR(e)
    • R(f);N_PINR(H)::R1(H)
    • B(g);CHECK,XR(H)::S(D),XB(g)
    • P(h);OGATE::R(G)+P(F),XP(h)
  • Tries
    • Try
      • R(G);XP(a)
      • Threat
        • P(A)
      • Vars
        • B(g);CHECK,XR(H)::S(D),XB(g)
        • R(f);N_PINR(H)::R1(H)
      • Refutation
        • S(c);
  • Actual
    • Q(K);N_PINS(d)
    • Threat
      • QAB1(K)
    • Vars
      • B(g);CHECK,XR(H)::S(D),XB(g)
      • S(d);SBLOCK,XP(E)::P(A)
      • S(d);N_GUARD,XP(J)::QAR2(K)
      • R(f);N_PINR(H)::R1(H)
      • R(f);N_GUARD::QAR2(K),XR(f)
      • R(f);N_GUARD::QAB(K)
      • S(d);OGATE::R(G)+P(F)
      • S(d);N_PINR(H),OGATE::R(G)+P(F)
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