MESON Chess Problem Database

Problem Display
PID: 7352 (6B1/8/Q3p1r1/R1pPk1P1/Kb1N2RN/5P2/8/2B1r3 w - - 0 1)

Cheylan, Yves

Savournin, Jacques

StrateGems, 1999

6B1/8/Q3p1r1/R1pPk1P1/Kb1N2RN/5P2/8/2B1r3

#2

11 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Rxg5
      • 2.Qxe6#
    • 1...Rg7
      • 2.Qxe6#
    • 1...Rxg8
      • 2.Qxe6#
    • 1...cxd4
      • 2.Bf4#
    • 1...c4
      • 2.Sxg6#
    • 1...exd5
      • 2.Sxg6#
  • Tries
    • 1.Sb5?
      • threat
        • 2.Qd6#
      • 1...Kxd5
        • 2.Qd6#
      • 1...Rxg5
        • 2.Qxe6#
      • 1...exd5
        • 2.Bf4#
      • 1...c4!
    • 1.Sc6+?
      • 1...Kxd5
        • 2.Rd4#
      • 1...Kd6!
  • Keys
    • 1.Sdf5!
      • threat
        • 2.Qd6#
      • 1...Kxd5
        • 2.Qd6#
      • 1...Rxg5
        • 2.Qxe6#
      • 1...exd5
        • 2.Bf4#
      • 1...exf5
        • 2.Sxg6#
      • 1...c4
        • 2.Bf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 2
    • REMOVED MATES = 3
  • Sets
    • R(f);N_GUARD,XP(I)::QAR1(J),XP(e)
    • R(f);N_GUARD::QAR1(J),XP(e)
    • R(f);N_GUARD,XB(K)::QAR1(J),XP(e)
    • P(c);SBLOCK,XS(D)::B(A)
    • P(c);::S(F),XR(f)
    • P(e);XP(H)::S(F),XR(f)
  • Tries
    • Try
      • S(D);
      • Threat
        • QAB1(J)
      • Vars
        • K(d);P-FLIGHT,P_SPINP(e),XP(H)::QAR1(J)
        • R(f);N_GUARD,XP(I)::QAR1(J),XP(e)
        • P(e);XP(H)::B(A)
      • Refutation
        • P(c);
    • Try
      • S(D);CHECK
      • Vars
        • K(d);P-FLIGHT,P_SPINP(c),XP(H)::R1(E)
      • Refutation
        • K(d);S_FLIGHT
  • Actual
    • S(D);
    • Threat
      • QAB1(J)
    • Vars
      • K(d);P-FLIGHT,P_SPINP(c),XP(H)::QAR1(J)
      • R(f);N_GUARD,XP(I)::QAR1(J),XP(e)
      • P(e);XP(H)::B(A)
      • P(e);SBLOCK,XS(D)::S(F),XR(f)
      • P(c);::B(A)
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