MESON Chess Problem Database

Problem Display
PID: 231099 (8/8/2Bp2K1/3Nk3/4n3/4Q3/8/8 w - - 0 1)

Neukomm, Gyula (Julius) R

Magyar Sakkvilag, 1927

8/8/2Bp2K1/3Nk3/4n3/4Q3/8/8

#2

4 + 3

6490 yacpdb 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Ke6
      • 2.Qxe4#
  • Tries
    • 1.Kg7?
      • 1...Ke6
        • 2.Qxe4#
      • 1...Kf5!
    • 1.Sc3?
      • threat
        • 2.Qxe4#
      • 1...Ke6
        • 2.Qxe4#
      • 1...d5!
    • 1.Sb4?
      • threat
        • 2.Qxe4#
      • 1...Ke6
        • 2.Qxe4#
      • 1...d5!
    • 1.Sb6?
      • threat
        • 2.Qxe4#
      • 1...Ke6
        • 2.Qxe4#
      • 1...d5!
    • 1.Sf6?
      • threat
        • 2.Qxe4#
      • 1...Ke6
        • 2.Qxe4#
      • 1...d5!
    • 1.Se7?
      • threat
        • 2.Qxe4#
      • 1...Ke6
        • 2.Qxe4#
      • 1...d5!
    • 1.Ba4?
      • 1...Ke6
        • 2.Qxe4#
      • 1...Kxd5!
    • 1.Bb5?
      • 1...Ke6
        • 2.Qxe4#
      • 1...Kxd5!
    • 1.Be8?
      • 1...Ke6
        • 2.Qxe4#
      • 1...Kxd5!
    • 1.Qd4+?
      • 1...Ke6
        • 2.Qxe4#
      • 1...Kxd4!
    • 1.Qf4+?
      • 1...Ke6
        • 2.Qxe4#
        • 2.Qf5#
      • 1...Kd4!
    • 1.Qe1?
      • 1...Ke6
        • 2.Qxe4#
      • 1...Kd4!
    • 1.Qe2?
      • 1...Ke6
        • 2.Qxe4#
      • 1...Kd4!
  • Keys
    • 1.Kf7!
      • 1...Kf5
        • 2.Qf4#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • K(b);P-FLIGHT::QAR2(A),XS(a)
  • Tries
    • Try
      • K(D);P-FLIGHT
      • Vars
        • K(b);P-FLIGHT::QAR2(A),XS(a)
      • Refutation
        • K(b);N_SPINS(a),P-FLIGHT
    • Try
      • S(B);
      • Threat
        • QAR1(A),XS(a)
      • Vars
        • K(b);P-FLIGHT::QAR2(A),XS(a)
      • Refutation
        • P(c);
    • Try
      • S(B);
      • Threat
        • QAR1(A),XS(a)
      • Vars
        • K(b);P-FLIGHT::QAR2(A),XS(a)
      • Refutation
        • P(c);
    • Try
      • S(B);
      • Threat
        • QAR1(A),XS(a)
      • Vars
        • K(b);P-FLIGHT::QAR2(A),XS(a)
      • Refutation
        • P(c);
    • Try
      • S(B);
      • Threat
        • QAR1(A),XS(a)
      • Vars
        • K(b);P-FLIGHT::QAR2(A),XS(a)
      • Refutation
        • P(c);
    • Try
      • S(B);
      • Threat
        • QAR1(A),XS(a)
      • Vars
        • K(b);P-FLIGHT::QAR2(A),XS(a)
      • Refutation
        • P(c);
    • Try
      • B(C);
      • Vars
        • K(b);P-FLIGHT::QAR2(A),XS(a)
      • Refutation
        • K(b);N_SPINS(a),P-FLIGHT,XS(B)
    • Try
      • B(C);
      • Vars
        • K(b);P-FLIGHT::QAR2(A),XS(a)
      • Refutation
        • K(b);N_SPINS(a),P-FLIGHT,XS(B)
    • Try
      • B(C);
      • Vars
        • K(b);P-FLIGHT::QAR2(A),XS(a)
      • Refutation
        • K(b);N_SPINS(a),P-FLIGHT,XS(B)
    • Try
      • Q(A);CHECK,N_PINS(a)
      • Vars
        • K(b);P-FLIGHT::QAR2(A),XS(a)
      • Refutation
        • K(b);S_FLIGHT,XQ(A)
    • Try
      • Q(A);CHECK,N_PINS(a)
      • Refutation
        • K(b);P_SPINS(a),S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(b);P-FLIGHT::QAR2(A),XS(a)
      • Refutation
        • K(b);N_SPINS(a),S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(b);P-FLIGHT::QAR2(A),XS(a)
      • Refutation
        • K(b);N_SPINS(a),S_FLIGHT
  • Actual
    • K(D);S_FLIGHT
    • Vars
      • K(b);N_SPINS(a),P-FLIGHT::QAR1(A)
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