MESON Chess Problem Database

Problem Display
PID: 121514 (n7/6p1/6Q1/k4B2/5R1K/7n/1Pb2B2/8 w - - 0 1)

Cumpe, Josef

Casopis ceskoslovenskych sachistu, 1920

n7/6p1/6Q1/k4B2/5R1K/7n/1Pb2B2/8

#2

6 + 5

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Sb6
      • 2.Qxb6#
    • 1...Sc7
      • 2.Qb6#
  • Tries
    • 1.Qc6?
      • threat
        • 2.Be1#
        • 2.b4#
      • 1...Sxf2
        • 2.b4#
      • 1...Sxf4
        • 2.Be1#
      • 1...Be4
        • 2.Be1#
      • 1...Sb6
        • 2.Qxb6#
      • 1...Bb3
        • 2.Be1#
      • 1...g5+!
    • 1.b4+?
      • 1...Kb5
        • 2.Bd7#
      • 1...Ka4!
  • Keys
    • 1.Bd7!
      • threat
        • 2.Be1#
        • 2.b4#
      • 1...Bxg6
        • 2.Ra4#
      • 1...Sxf2
        • 2.b4#
      • 1...Sxf4
        • 2.Be1#
      • 1...Be4
        • 2.Be1#
      • 1...Sb6
        • 2.Qxb6#
      • 1...Bb3
        • 2.Be1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 1
  • Sets
    • S(e);N_GUARD::QAB1(F),XS(e)
    • S(e);N_GUARD::QAB1(F)
  • Tries
    • Try
      • Q(F);
      • Threat
        • DUALS(2)
      • Vars
        • S(b);XB(B)::P(A)
        • S(b);XR(C)::B(B)
        • B(a);::B(B)
        • S(e);N_GUARD::QAB1(F),XS(e)
      • Refutation
        • P(d);CHECK
    • Try
      • P(A);CHECK
      • Vars
        • K(c);P-FLIGHT::B(E)
      • Refutation
        • K(c);P-FLIGHT
  • Actual
    • B(E);
    • Threat
      • DUALS(2)
    • Vars
      • B(a);N_GUARD,XQ(F)::R1(C)
      • S(b);XB(B)::P(A)
      • S(b);XR(C)::B(B)
      • B(a);::B(B)
      • S(e);N_GUARD::QAB1(F),XS(e)
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