MESON Chess Problem Database

Problem Display
PID: 243626 (8/n2R4/1r6/1p2kBP1/3p3N/1Q2P3/1K5n/7b w - - 0 1)

Balcu, Silviu

Revista Romana de Sah, 1955

8/n2R4/1r6/1p2kBP1/3p3N/1Q2P3/1K5n/7b

#2

7 + 7

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Re6
      • 2.Qxe6#
    • 1...Rb7
      • 2.Qe6#
    • 1...Rb8
      • 2.Qe6#
    • 1...Bd5
      • 2.Rxd5#
      • 2.Qxd5#
    • 1...Bc6
      • 2.Qe6#
    • 1...Sf3
      • 2.Rd5#
      • 2.Qd5#
    • 1...Sc6
      • 2.Qe6#
    • 1...d3
      • 2.Qc3#
  • Tries
    • 1.Re7+?
      • 1...Re6
        • 2.Rxe6#
        • 2.Qxe6#
      • 1...Kd6!
    • 1.Qd3?
      • threat
        • 2.Qxd4#
      • 1...dxe3
        • 2.Qd4#
      • 1...Sf3
        • 2.Qe4#
      • 1...Sc6
        • 2.Sg6#
      • 1...Rd6!
  • Keys
    • 1.Qb4!
      • threat
        • 2.Qxd4#
      • 1...dxe3
        • 2.Qd4#
      • 1...Rd6
        • 2.Qxd6#
      • 1...Sf3
        • 2.Qc5#
      • 1...Sc6
        • 2.Qd6#
      • 1...d3
        • 2.Qc3#
        • 2.Qd4#
        • 2.Qf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 5
  • Sets
    • R(f);N_GUARD::QAR1(B),XR(f)
    • R(f);N_GUARD::QAR1(B)
    • B(a);S_CUTR(f)::QAR1(B)
    • S(g);S_CUTR(f)::QAR1(B)
    • P(c);OGATEB::QAB(B)
  • Tries
    • Try
      • R(G);CHECK
      • Refutation
        • K(e);S_FLIGHT
    • Try
      • Q(B);
      • Threat
        • QAB1(B),XP(c)
      • Vars
        • P(c);XP(C)::QAB1(B)
        • S(b);S_CUTB(a)::QAR1(B)
        • S(g);S_CUTR(f)::S(D)
      • Refutation
        • R(f);
  • Actual
    • Q(B);
    • Threat
      • QAB1(B),XP(c)
    • Vars
      • P(c);XP(C)::QAB1(B)
      • R(f);N_GUARD::QAB1(B),XR(f)
      • S(b);S_CUTB(a)::QAR2(B)
      • S(g);S_CUTR(f)::QAB1(B)
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