MESON Chess Problem Database

Problem Display
PID: 258339 (1BQ2N2/4np2/4q1p1/2Rr1kP1/K3bp1P/7P/R7/1B6 w - - 0 1)

Garzon Roger, Jose Antonio

Problemas, 2022

1BQ2N2/4np2/4q1p1/2Rr1kP1/K3bp1P/7P/R7/1B6

#2

10 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Qd7+
      • 2.Qxd7#
    • 1...Re5
      • 2.Rxe5#
    • 1...Bc2+
      • 2.Bxc2#
    • 1...Bd3
      • 2.Bxd3#
    • 1...Sg8
      • 2.Rxd5#
    • 1...f6
      • 2.Qxe6#
  • Tries
    • 1.Sxe6?
      • threat
        • 2.Sd4#
        • 2.Sg7#
      • 1...Bc2+
        • 2.Bxc2#
      • 1...fxe6
        • 2.Qf8#
      • 1...Bd3
        • 2.Bxd3#
      • 1...Bxb1!
  • Keys
    • 1.Rf2!
      • threat
        • 2.Rxf4#
      • 1...Qd7+
        • 2.Qxd7#
      • 1...Bc2+
        • 2.Bxc2#
      • 1...Re5
        • 2.Rxe5#
      • 1...f3
        • 2.Rxf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 3
  • Sets
    • Q(e);CHECK,OGATEB::QAB(I),XQ(e)
    • R(c);OGATE::R1(F),XR(c)
    • B(a);CHECK,OGATEB::B(A),XB(a)
    • B(a);OGATEB::B(A),XB(a)
    • S(g);N_GUARD::R(F),XR(c)
    • P(h);N_GUARD::QAB1(I),XQ(e)
  • Tries
    • Try
      • S(J);XQ(e)
      • Threat
        • DUALS(2)
      • Vars
        • B(a);CHECK,OGATEB::B(A),XB(a)
        • P(h);OGATEB,P_SPINP(h),SBLOCK,XS(J)::QAR(I)
        • B(a);OGATEB::B(A),XB(a)
      • Refutation
        • B(a);N_SPINB(a),XB(A)
  • Actual
    • R(B);P_PINP(b)
    • Threat
      • R1(B),XP(b)
    • Vars
      • Q(e);CHECK,OGATEB::QAB(I),XQ(e)
      • B(a);CHECK,OGATEB::B(A),XB(a)
      • R(c);OGATE::R1(F),XR(c)
      • P(b);OGATEB::R(B),XP(b)
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Developed and maintained by Brian Stephenson.
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