MESON Chess Problem Database

Problem Display
PID: 207440 (R6B/1Q6/8/4rp2/6PK/3PP3/PP2R3/k2B4 w - - 0 1)

Kopaev, Viacheslav Georgievich

The Problemist, 1984

R6B/1Q6/8/4rp2/6PK/3PP3/PP2R3/k2B4

#2

11 + 3

SOLUTION

  • SOUND
  • Tries
    • 1.Bc2?
      • threat
        • 2.Re1#
      • 1...Rxe3
        • 2.Qh1#
      • 1...Ra5!
    • 1.Bb3?
      • threat
        • 2.Qh1#
      • 1...Kb1
        • 2.Qh1#
      • 1...Re4
        • 2.Re1#
      • 1...Rd5
        • 2.Re1#
      • 1...Rc5!
    • 1.Re1?
      • threat
        • 2.Bc2#
        • 2.Be2#
        • 2.Bf3#
      • 1...Rxe3
        • 2.Be2#
      • 1...Ra5
        • 2.Bb3#
      • 1...Rc5
        • 2.Bc2#
      • 1...Kb1!
  • Keys
    • 1.Qh1!
      • threat
        • 2.Bb3#
      • 1...Kb1
        • 2.Bb3#
      • 1...Rc5
        • 2.Bc2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(A);
      • Threat
        • R(D)
      • Vars
        • R(b);XP(F)::QAB1(I)
      • Refutation
        • R(b);
    • Try
      • B(A);
      • Threat
        • QAB1(I)
      • Vars
        • K(a);P-FLIGHT::QAR(I)
        • R(b);P_PINP(G)::R(D)
        • R(b);::R(D)
      • Refutation
        • R(b);
    • Try
      • R(D);
      • Threat
        • DUALS(3)
      • Vars
        • R(b);XP(F)::R(D)+B(A)
        • R(b);::R(D)+B(A)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • Q(I);
    • Threat
      • QAR(I)+B(A)
    • Vars
      • K(a);P-FLIGHT::QAR(I)+B(A)
      • R(b);::QAR(I)+B(A)
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