MESON Chess Problem Database

Problem Display
PID: 222536 (5B2/2p1QK2/1RPpP1P1/5P2/3kP3/1Pp5/2RP1N2/8 w - - 0 1)

Hirschenson, Aaron

Variantim, 2003

5B2/2p1QK2/1RPpP1P1/5P2/3kP3/1Pp5/2RP1N2/8

#2

13 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...d5
      • 2.Bg7#
      • 2.Qf6#
    • 1...cxb6
      • 2.Qxd6#
  • Tries
    • 1.Rb4+?
      • 1...Ke5
        • 2.Sd3#
      • 1...Kc5!
    • 1.Rb5?
      • threat
        • 2.Bg7#
        • 2.Rd5#
        • 2.Qf6#
      • 1...d5
        • 2.Bg7#
        • 2.Rxd5#
        • 2.Qf6#
      • 1...cxd2!
    • 1.Qg5?
      • 1...Kc5
        • 2.Qe3#
      • 1...Ke5
        • 2.Bg7#
      • 1...cxd2
        • 2.Bg7#
      • 1...d5
        • 2.Qf6#
      • 1...cxb6!
  • Keys
    • 1.Bh6!
      • 1...Kc5
        • 2.Be3#
      • 1...Ke5
        • 2.Qf6#
      • 1...cxd2
        • 2.Qf6#
      • 1...cxb6
        • 2.Qxd6#
      • 1...d5
        • 2.Bg7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • P(d);N_GUARD,XR(G)::QAR2(K),XP(c)
  • Tries
    • Try
      • R(G);CHECK
      • Vars
        • K(b);S_FLIGHT::S(C)
      • Refutation
        • K(b);P_SPINP(a),S_FLIGHT
    • Try
      • R(G);
      • Threat
        • DUALS(3)
      • Refutation
        • P(a);XP(B)
    • Try
      • Q(K);
      • Vars
        • K(b);P_SPINP(a),S_FLIGHT::QAB(K)
        • K(b);S_FLIGHT::B(M)
        • P(a);XP(B)::B(M)
        • P(c);::QAB(K)
      • Refutation
        • P(d);XR(G)
  • Actual
    • B(M);
    • Vars
      • K(b);P_SPINP(a),S_FLIGHT::B(M)
      • K(b);S_FLIGHT::QAB1(K)
      • P(a);XP(B)::QAB(K)
      • P(d);N_GUARD,XR(G)::QAR2(K),XP(c)
      • P(c);::B(M)
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