MESON Chess Problem Database

Problem Display
PID: 63825 (8/p5p1/B3Q1p1/6Bp/1Kpk2bR/8/8/8 w - - 0 1)

Neukomm, Gyula (Julius) R

Chess, 1946

8/p5p1/B3Q1p1/6Bp/1Kpk2bR/8/8/8

#2

5 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Kd3
      • 2.Qxc4#
    • 1...c3
      • 2.Be3#
  • Tries
    • 1.Ka4?
      • 1...Kd3
        • 2.Qxc4#
      • 1...Kc5
        • 2.Be3#
      • 1...c3
        • 2.Be3#
      • 1...Kc3!
    • 1.Ka5?
      • 1...Kd3
        • 2.Qxc4#
      • 1...Kc5
        • 2.Be3#
      • 1...c3
        • 2.Be3#
      • 1...Kc3!
    • 1.Bc1?
      • 1...Kd3
        • 2.Qxc4#
      • 1...c3
        • 2.Be3#
      • 1...g5!
    • 1.Bb7?
      • threat
        • 2.Qd5#
        • 2.Qe3#
        • 2.Qe4#
        • 2.Qd6#
      • 1...Kd3
        • 2.Qxc4#
        • 2.Qe4#
      • 1...a5+!
    • 1.Rxg4+?
      • 1...Kd3
        • 2.Qxc4#
        • 2.Qe4#
      • 1...hxg4!
  • Keys
    • 1.Ka3!
      • 1...Kc3
        • 2.Qxc4#
      • 1...Kd3
        • 2.Qxc4#
      • 1...Kc5
        • 2.Be3#
      • 1...c3
        • 2.Be3#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(b);N_SPINB(c),P-FLIGHT,P_SPINP(a)::QAB1(E),XP(a)
    • P(a);::B(C)
  • Tries
    • Try
      • K(A);P-FLIGHT
      • Vars
        • K(b);N_SPINB(c),P-FLIGHT,P_SPINP(a)::QAB1(E),XP(a)
        • K(b);N_SPINB(c),S_FLIGHT::B(C)
        • P(a);SBLOCK::B(C)
      • Refutation
        • K(b);N_SPINB(c),S_FLIGHT
    • Try
      • K(A);S_FLIGHT
      • Vars
        • K(b);N_SPINB(c),P-FLIGHT,P_SPINP(a)::QAB1(E),XP(a)
        • K(b);N_SPINB(c),S_FLIGHT::B(C)
        • P(a);SBLOCK::B(C)
      • Refutation
        • K(b);N_SPINB(c),S_FLIGHT
    • Try
      • B(C);
      • Vars
        • K(b);N_SPINB(c),P-FLIGHT,P_SPINP(a)::QAB1(E),XP(a)
        • P(a);::B(C)
      • Refutation
        • P(e);
    • Try
      • B(D);
      • Threat
        • DUALS(4)
      • Refutation
        • P(f);CHECK
    • Try
      • R(B);CHECK,XB(c)
      • Refutation
        • P(d);XR(B)
  • Actual
    • K(A);S_FLIGHT
    • Vars
      • K(b);N_SPINB(c),S_FLIGHT::QAR1(E),XP(a)
      • K(b);N_SPINB(c),P-FLIGHT,P_SPINP(a)::QAB1(E),XP(a)
      • K(b);N_SPINB(c),S_FLIGHT::B(C)
      • P(a);SBLOCK::B(C)
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