MESON Chess Problem Database

Problem Display
PID: 268641 (4R3/5B2/6b1/8/3pp3/1NB4R/5p2/1Q2bk1K w - - 0 1)

Bielefeldt, German

Del Pozo, Rafael

Garzon-60 JT (Problemas), 2023

4R3/5B2/6b1/8/3pp3/1NB4R/5p2/1Q2bk1K

#2

7 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Ke2
      • 2.Qd3#
    • 1...dxc3
      • 2.Bc4#
  • Tries
    • 1.Re3?
      • threat
        • 2.Sd2#
      • 1...dxc3
        • 2.Bc4#
      • 1...dxe3!
    • 1.Rxe4?
      • threat
        • 2.Sd2#
        • 2.Qd3#
      • 1...dxc3
        • 2.Bc4#
        • 2.Qd3#
      • 1...Bh5
        • 2.Sd2#
      • 1...d3
        • 2.Sd2#
        • 2.Qxd3#
      • 1...Bxe4+!
    • 1.Qxe4?
      • threat
        • 2.Qg2#
        • 2.Qe2#
      • 1...Bh5
        • 2.Qg2#
      • 1...d3
        • 2.Qg2#
      • 1...Bxe4+!
    • 1.Qd1?
      • threat
        • 2.Sd2#
      • 1...dxc3
        • 2.Bc4#
      • 1...e3!
  • Keys
    • 1.Rf3!
      • threat
        • 2.Qxe1#
      • 1...Ke2
        • 2.Qd3#
      • 1...dxc3
        • 2.Bc4#
      • 1...exf3
        • 2.Sd2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(b);N_SPINB(a),P_SPINP(e),S_FLIGHT::QAB1(A)
    • P(d);N_GUARD,XB(D)::B(F)
  • Tries
    • Try
      • R(E);
      • Threat
        • S(C)
      • Vars
        • P(d);N_GUARD,XB(D)::B(F)
      • Refutation
        • P(d);XR(E)
    • Try
      • R(G);XP(e)
      • Threat
        • DUALS(2)
      • Vars
        • B(f);::S(C)
      • Refutation
        • B(f);CHECK,XR(G)
    • Try
      • Q(A);N_PINB(a),XP(e)
      • Threat
        • DUALS(2)
      • Vars
        • B(f);::QAB1(A)
        • P(d);::QAB1(A)
      • Refutation
        • B(f);CHECK,XQ(A)
    • Try
      • Q(A);
      • Threat
        • S(C)
      • Vars
        • P(d);N_GUARD,XB(D)::B(F)
      • Refutation
        • P(e);
  • Actual
    • R(E);P_PINP(c)
    • Threat
      • QAR1(A),XB(a)
    • Vars
      • K(b);N_SPINB(a),N_SPINP(c),P_SPINP(e),S_FLIGHT::QAB1(A)
      • P(d);N_GUARD,XB(D)::B(F)
      • P(e);N_SPINP(c),XR(E)::S(C)
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