MESON Chess Problem Database

Problem Display
PID: 6651 (8/8/8/8/8/pQ5N/K3k3/3Rn3 w - - 0 1)

Wolf, E

Magyar Sakkvilag, 1932

8/8/8/8/8/pQ5N/K3k3/3Rn3

#2

4 + 3

273 Mat Plus 1995

SOLUTION

  • SOUND
  • Sets
    • 1...Kf1
      • 2.Qf3#
    • 1...Sc2
      • 2.Qd3#
    • 1...Sg2
      • 2.Qd3#
    • 1...Sd3
      • 2.Qxd3#
    • 1...Sf3
      • 2.Qd3#
  • Tries
    • 1.Kb1?
      • 1...Kf1
        • 2.Qf3#
      • 1...Sd3
        • 2.Qxd3#
      • 1...Sc2
        • 2.Qd3#
      • 1...Sg2
        • 2.Qd3#
      • 1...Sf3
        • 2.Qd3#
      • 1...a2+!
    • 1.Kxa3?
      • 1...Kf1
        • 2.Qf3#
      • 1...Sd3
        • 2.Qxd3#
      • 1...Sg2
        • 2.Qd3#
      • 1...Sf3
        • 2.Qd3#
      • 1...Sc2+!
    • 1.Rd2+?
      • 1...Kf1
        • 2.Rf2#
      • 1...Kxd2!
    • 1.Qxa3?
      • 1...Kf1
        • 2.Qf3#
      • 1...Sd3
        • 2.Qxd3#
      • 1...Sc2
        • 2.Qd3#
      • 1...Sg2
        • 2.Qd3#
      • 1...Sf3
        • 2.Qd3#
      • 1...Kxd1!
    • 1.Qc3?
      • threat
        • 2.Rxe1#
      • 1...Kf1
        • 2.Qf3#
      • 1...Sd3
        • 2.Qxd3#
      • 1...Sc2
        • 2.Qd3#
      • 1...Sg2
        • 2.Qd3#
      • 1...Sf3
        • 2.Qd3#
      • 1...Kxd1!
  • Keys
    • 1.Qd5!
      • 1...Kf1
        • 2.Qf3#
      • 1...Ke3
        • 2.Rxe1#
      • 1...Sc2
        • 2.Qd3#
      • 1...Sg2
        • 2.Qd3#
      • 1...Sd3
        • 2.Qxd3#
      • 1...Sf3
        • 2.Qd3#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(b);P_SPINS(a),S_FLIGHT::QAR2(C)
    • S(a);N_GUARD::QAB1(C)
    • S(a);N_GUARD::QAB1(C),XS(a)
  • Tries
    • Try
      • K(B);S_FLIGHT
      • Vars
        • K(b);P_SPINS(a),S_FLIGHT::QAR2(C)
        • S(a);N_GUARD::QAB1(C),XS(a)
        • S(a);N_GUARD::QAB1(C)
      • Refutation
        • P(c);CHECK
    • Try
      • K(B);P-FLIGHT,XP(c)
      • Vars
        • K(b);P_SPINS(a),S_FLIGHT::QAR2(C)
        • S(a);N_GUARD::QAB1(C),XS(a)
        • S(a);N_GUARD::QAB1(C)
      • Refutation
        • S(a);CHECK
    • Try
      • R(A);CHECK
      • Vars
        • K(b);OGATE,S_FLIGHT::R1(A)
      • Refutation
        • K(b);P-FLIGHT,XR(A)
    • Try
      • Q(C);XP(c)
      • Vars
        • K(b);P_SPINS(a),S_FLIGHT::QAR2(C)
        • S(a);N_GUARD::QAB1(C),XS(a)
        • S(a);N_GUARD::QAB1(C)
      • Refutation
        • K(b);S_FLIGHT,XR(A)
    • Try
      • Q(C);
      • Threat
        • R1(A),XS(a)
      • Vars
        • K(b);P_SPINS(a),S_FLIGHT::QAR2(C)
        • S(a);N_GUARD::QAB1(C),XS(a)
        • S(a);N_GUARD::QAB1(C)
      • Refutation
        • K(b);S_FLIGHT,XR(A)
  • Actual
    • Q(C);
    • Vars
      • K(b);P_SPINS(a),S_FLIGHT::QAR2(C)
      • K(b);P-FLIGHT::R(A),XS(a)
      • S(a);N_GUARD::QAB1(C)
      • S(a);N_GUARD::QAB1(C),XS(a)
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