MESON Chess Problem Database

Problem Display
PID: 243479 (8/2K2p1B/5kp1/R1p2NN1/3p2RP/3p4/4P2B/1Q6 w - - 0 1)

Buchwald, Julius

Magyar Sakkvilag, 1949

8/2K2p1B/5kp1/R1p2NN1/3p2RP/3p4/4P2B/1Q6

#2

10 + 6

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...dxe2
      • 2.Ra6#
    • 1...d2
      • 2.Ra6#
    • 1...c4
      • 2.Qb6#
  • Tries
    • 1.Rg1?
      • 1...Kxf5
        • 2.Qf1#
      • 1...dxe2
        • 2.Ra6#
      • 1...d2
        • 2.Ra6#
      • 1...c4
        • 2.Qb6#
      • 1...gxf5!
    • 1.Rg2?
      • 1...Kxf5
        • 2.Qf1#
      • 1...dxe2
        • 2.Ra6#
      • 1...d2
        • 2.Ra6#
      • 1...c4
        • 2.Qb6#
      • 1...gxf5!
    • 1.Rxd4?
      • 1...Kxf5
        • 2.Qf1#
      • 1...dxe2
        • 2.Rd6#
        • 2.Ra6#
      • 1...cxd4
        • 2.Qb6#
      • 1...d2
        • 2.Rd6#
        • 2.Ra6#
      • 1...c4
        • 2.Rd6#
        • 2.Qb6#
      • 1...gxf5!
    • 1.Qb3?
      • threat
        • 2.Qxf7#
      • 1...c4
        • 2.Qb6#
      • 1...Kxf5!
  • Keys
    • 1.Kd6!
      • 1...Kxf5
        • 2.Rf4#
      • 1...dxe2
        • 2.Be5#
      • 1...gxf5
        • 2.Be5#
      • 1...d2
        • 2.Be5#
      • 1...c4
        • 2.Se4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 3
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(a);XP(B)::R(F)
    • P(a);::R(F)
    • P(c);::QAR(A)
  • Tries
    • Try
      • R(D);
      • Vars
        • K(d);OGATEB,P-FLIGHT,P_SPINP(a),XS(G)::QAR(A)
        • P(a);XP(B)::R(F)
        • P(a);::R(F)
        • P(c);::QAR(A)
      • Refutation
        • P(e);XS(G)
    • Try
      • R(D);
      • Vars
        • K(d);OGATEB,P-FLIGHT,P_SPINP(a),XS(G)::QAR(A)
        • P(a);XP(B)::R(F)
        • P(a);::R(F)
        • P(c);::QAR(A)
      • Refutation
        • P(e);XS(G)
    • Try
      • R(D);XP(b)
      • Vars
        • K(d);OGATEB,P-FLIGHT,P_SPINP(a),XS(G)::QAR(A)
        • P(c);XR(D)::QAR(A)
      • Refutation
        • P(e);XS(G)
    • Try
      • Q(A);
      • Threat
        • QAR1(A),XP(f)
      • Vars
        • P(c);::QAR(A)
      • Refutation
        • K(d);P-FLIGHT,P_SPINP(c),XS(G)
  • Actual
    • K(I);S_FLIGHT
    • Vars
      • K(d);OGATEB,P-FLIGHT,P_SPINP(a),XS(G)::R1(D)
      • P(a);XP(B)::B(C)
      • P(e);XS(G)::B(C)
      • P(a);::B(C)
      • P(c);::S(H)
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