MESON Chess Problem Database

Problem Display
PID: 205058 (r1n2B2/2R3N1/3p4/3kP1K1/2p5/4Q3/Bn6/8 w - - 0 1)

Trufanov, V

Zadachi i Etyudi, 1998

r1n2B2/2R3N1/3p4/3kP1K1/2p5/4Q3/Bn6/8

#2

7 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Sd1
      • 2.Bxc4#
    • 1...Sd3
      • 2.Bxc4#
    • 1...Sa4
      • 2.Bxc4#
    • 1...dxe5
      • 2.Rc5#
  • Tries
    • 1.Sh5?
      • threat
        • 2.Sf4#
      • 1...Ke6
        • 2.Sf4#
      • 1...Sd3
        • 2.Bxc4#
      • 1...dxe5!
    • 1.Bxd6?
      • threat
        • 2.Rc5#
      • 1...Sd3
        • 2.Bxc4#
        • 2.Qxd3#
      • 1...Sa4
        • 2.Bxc4#
        • 2.Qd3#
      • 1...Ra5!
    • 1.Rxc4?
      • threat
        • 2.Rc5#
        • 2.Qd4#
        • 2.Qe4#
      • 1...Rxa2
        • 2.Qd4#
        • 2.Qe4#
      • 1...dxe5
        • 2.Rc5#
        • 2.Qc5#
        • 2.Qe4#
      • 1...Sxc4!
  • Keys
    • 1.Kf4!
      • threat
        • 2.Qe4#
      • 1...Sd3+
        • 2.Qxd3#
      • 1...dxe5+
        • 2.Qxe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 0
    • REMOVED MATES = 2
  • Sets
    • S(a);N_GUARD::B(A),XP(b)
    • P(d);N_GUARD,XP(C)::R1(E)
  • Tries
    • Try
      • S(F);
      • Threat
        • S(F)
      • Vars
        • K(c);S_FLIGHT::S(F)
        • S(a);N_GUARD::B(A),XP(b)
      • Refutation
        • P(d);XP(C)
    • Try
      • B(G);XP(d)
      • Threat
        • R1(E)
      • Refutation
        • R(e);
    • Try
      • R(E);XP(b)
      • Threat
        • DUALS(3)
      • Refutation
        • S(a);P_SPINS(a),XR(E)
  • Actual
    • K(D);S_FLIGHT
    • Threat
      • QAB1(B)
    • Vars
      • S(a);CHECK,N_GUARD::QAR2(B),XS(a)
      • P(d);CHECK,OGATE,XP(C)::QAR1(B),XP(d)
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