MESON Chess Problem Database

Problem Display
PID: 155921 (8/8/4B2Q/6B1/1N1k1p2/1K6/3N4/3R4 w - - 0 1)

Grassano, Carlos A

Comm., Die Schwalbe, 2013

8/8/4B2Q/6B1/1N1k1p2/1K6/3N4/3R4

#2

7 + 2

23 Die Schwalbe 2015

SOLUTION

  • SOUND
  • Tries
    • 1.Sc4+?
      • 1...Kc5
        • 2.Rd5#
      • 1...Ke4!
    • 1.Sc2+?
      • 1...Kd3
        • 2.Bc4#
      • 1...Ke5
        • 2.Bxf4#
      • 1...Kc5!
    • 1.Be7?
      • threat
        • 2.Qxf4#
      • 1...Ke5
        • 2.Sc6#
        • 2.Qf6#
      • 1...f3
        • 2.Qf4#
      • 1...Ke3!
    • 1.Bg4?
      • 1...Ke3
        • 2.Qb6#
      • 1...Ke5
        • 2.Qf6#
      • 1...f3
        • 2.Qd6#
      • 1...Kc5!
    • 1.Bd7?
      • 1...Kc5
        • 2.Se4#
      • 1...Ke5
        • 2.Qf6#
      • 1...f3
        • 2.Qd6#
      • 1...Ke3!
  • Keys
    • 1.Bc4!
      • 1...Ke3
        • 2.Qb6#
      • 1...Kc5
        • 2.Se4#
      • 1...Ke5
        • 2.Qf6#
      • 1...f3
        • 2.Qd6#

This is a version of 151365

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(B);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT::R1(A)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • S(D);CHECK
      • Vars
        • K(a);P-FLIGHT::B(F)
        • K(a);S_FLIGHT::B(E),XP(b)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(E);
      • Threat
        • QAR2(G),XP(b)
      • Vars
        • P(b);::QAR2(G)
      • Refutation
        • K(a);P_SPINP(b),S_FLIGHT
    • Try
      • B(F);
      • Vars
        • K(a);P_SPINP(b),S_FLIGHT::QAB(G)
        • K(a);S_FLIGHT::QAB1(G)
        • P(b);::QAR2(G)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(F);
      • Vars
        • K(a);S_FLIGHT::S(B)
        • K(a);S_FLIGHT::QAB1(G)
        • P(b);::QAR2(G)
      • Refutation
        • K(a);P_SPINP(b),S_FLIGHT
  • Actual
    • B(F);
    • Vars
      • K(a);P_SPINP(b),S_FLIGHT::QAB(G)
      • K(a);S_FLIGHT::S(B)
      • K(a);S_FLIGHT::QAB1(G)
      • P(b);::QAR2(G)
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