MESON Chess Problem Database

Problem Display
PID: 258340 (1B6/1qr1p3/2Q5/1N3pR1/2p1Pk1P/5p2/2K2P2/2N1R3 w - - 0 1)

Garzon Roger, Jose Antonio

Problemas, 2022

1B6/1qr1p3/2Q5/1N3pR1/2p1Pk1P/5p2/2K2P2/2N1R3

#2

10 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Ke5
      • 2.Rxf5#
    • 1...c3
      • 2.Sd3#
    • 1...fxe4
      • 2.Rxe4#
  • Tries
    • 1.Se2+?
      • 1...Ke5
        • 2.Rxf5#
      • 1...fxe2!
    • 1.Qd6+?
      • 1...e5
        • 2.Qd2#
      • 1...exd6!
    • 1.Qxc7+?
      • 1...e5
        • 2.Qxe5#
      • 1...Qxc7!
  • Keys
    • 1.Qxc4!
      • threat
        • 2.Sd3#
      • 1...Ke5
        • 2.Rxf5#
      • 1...Qd5
        • 2.exd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • K(c);N_GUARD,P_SPINP(d),S_FLIGHT::R1(H),XP(d)
    • P(b);N_GUARD::S(A)
    • P(d);OGATE,XP(E)::R1(B),XP(d)
  • Tries
    • Try
      • S(A);CHECK
      • Vars
        • K(c);N_GUARD,P_SPINP(d),S_FLIGHT::R1(H),XP(d)
      • Refutation
        • P(a);XS(A)
    • Try
      • Q(I);CHECK,N_PINR(f)
      • Vars
        • P(g);P_SPINP(g),SBLOCK::QAB(I)
      • Refutation
        • P(g);XQ(I)
    • Try
      • Q(I);CHECK,XR(f)
      • Vars
        • P(g);P_SPINP(g)::QAB1(I),XP(g)
      • Refutation
        • Q(e);P_SPINQ(e),XQ(I)
  • Actual
    • Q(I);P_SPINQ(I),XP(b)
    • Threat
      • S(A)
    • Vars
      • K(c);N_GUARD,P_SPINP(d),S_FLIGHT::R1(H),XP(d)
      • Q(e);OGATE::QAR(I)+P(E),XQ(e)
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