MESON Chess Problem Database

Problem Display
PID: 186887 (b7/5Q2/8/1N2k3/2prp3/3P4/2R2P2/4N1K1 w - - 0 1)

Udartsev, Valentin Filipovich

Suomen Shakki, 1981

b7/5Q2/8/1N2k3/2prp3/3P4/2R2P2/4N1K1

#2

7 + 5

SOLUTION

  • SOUND
  • Tries
    • 1.Re2?
      • threat
        • 2.Sf3#
        • 2.f4#
      • 1...Rxd3
        • 2.f4#
      • 1...e3!
    • 1.Qf6+?
      • 1...Kd5
        • 2.Qd6#
      • 1...Kxf6!
  • Keys
    • 1.dxe4!
      • threat
        • 2.Qf5#
      • 1...Kxe4
        • 2.Re2#
      • 1...Rxe4
        • 2.Sf3#
      • 1...Bxe4
        • 2.f4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(C);P_PINP(c)
      • Threat
        • DUALS(2)
      • Vars
        • R(b);XP(E)::P(D)
      • Refutation
        • P(c);
    • Try
      • Q(G);CHECK
      • Vars
        • K(d);P-FLIGHT::QAR1(G)
      • Refutation
        • K(d);S_FLIGHT,XQ(G)
  • Actual
    • P(E);XP(c)
    • Threat
      • QAR1(G)
    • Vars
      • K(d);OGATEB,P-FLIGHT,XP(E)::R(C)
      • R(b);SBLOCK,XP(E)::S(A)
      • B(e);SBLOCK,XP(E)::P(D)
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