MESON Chess Problem Database

Problem Display
PID: 49280 (4b3/2PR3B/3pk1p1/1P1NP1P1/2p4N/2p5/2Kb1Q2/3R4 w - - 0 1)

Valle, Giovanni Batista

Huddersfield College Magazine, 1879

4b3/2PR3B/3pk1p1/1P1NP1P1/2p4N/2p5/2Kb1Q2/3R4

#2

11 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Bc1
      • 2.Re7#
    • 1...Be1
      • 2.Re7#
    • 1...Be3
      • 2.Re7#
    • 1...Bf4
      • 2.Re7#
  • Tries
    • 1.Qd4?
      • threat
        • 2.Re7#
      • 1...Kxd7
        • 2.Qg4#
      • 1...Bxd7
        • 2.Bg8#
      • 1...dxe5
        • 2.Qg4#
      • 1...Bxg5!
    • 1.Qf4?
      • threat
        • 2.Rxd6#
      • 1...Kxd7
        • 2.Qg4#
      • 1...Bxf4
        • 2.Re7#
      • 1...Bxd7
        • 2.Bg8#
      • 1...dxe5
        • 2.Qg4#
      • 1...Kxd5!
  • Keys
    • 1.Qe3!
      • 1...Kxd5
        • 2.Rxd6#
      • 1...Kxd7
        • 2.Qh3#
      • 1...Bxe3
        • 2.Re7#
      • 1...Bxd7
        • 2.Bg8#
      • 1...dxe5
        • 2.Qh3#
      • 1...Bc1
        • 2.Re7#
      • 1...Be1
        • 2.Re7#
      • 1...Bf7
        • 2.Rxd6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 1
  • Sets
    • B(a);::R1(J)
  • Tries
    • Try
      • Q(C);
      • Threat
        • R1(J)
      • Vars
        • K(e);S_FLIGHT,XR(J)::QAB(C)
        • B(g);N_GUARD,SBLOCK,XR(J)::B(K)
        • P(d);SBLOCK,XP(G)::QAB(C)
      • Refutation
        • B(a);XP(H)
    • Try
      • Q(C);
      • Threat
        • R1(J),XP(d)
      • Vars
        • K(e);S_FLIGHT,XR(J)::QAB(C)
        • B(a);XQ(C)::R1(J)
        • B(g);N_GUARD,SBLOCK,XR(J)::B(K)
        • P(d);SBLOCK,XP(G)::QAB(C)
      • Refutation
        • K(e);P_SPINB(a),P_SPINP(d),S_FLIGHT,XS(F)
  • Actual
    • Q(C);
    • Vars
      • K(e);P_SPINB(a),P_SPINP(d),S_FLIGHT,XS(F)::R1(J),XP(d)
      • K(e);S_FLIGHT,XR(J)::QAB(C)
      • B(a);XQ(C)::R1(J)
      • B(g);N_GUARD,SBLOCK,XR(J)::B(K)
      • P(d);P_SPINP(d),SBLOCK,XP(G)::QAB(C)
      • B(a);::R1(J)
      • B(g);SBLOCK::R1(J),XP(d)
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