MESON Chess Problem Database

Problem Display
PID: 206681 (8/8/8/1p3p2/1P3Kp1/3kN1P1/1P1p4/3Q4 w - - 0 1)

Toth, Gyula

Uj Nemezdek, 1925

8/8/8/1p3p2/1P3Kp1/3kN1P1/1P1p4/3Q4

#2

6 + 5

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kd4
      • 2.Qxd2#
  • Tries
    • 1.Kxf5?
      • 1...Kd4
        • 2.Qxd2#
      • 1...Kxe3!
    • 1.Qc2+?
      • 1...Kd4
        • 2.Qxd2#
        • 2.Qc3#
      • 1...Ke2!
    • 1.Qe2+?
      • 1...Kd4
        • 2.Qxd2#
      • 1...Kxe2!
    • 1.Qb3+?
      • 1...Kd4
        • 2.Sc2#
        • 2.Sxf5#
        • 2.Qd5#
        • 2.Qc3#
      • 1...Ke2!
    • 1.Qf3?
      • 1...Kd4
        • 2.Qd5#
      • 1...d1Q
        • 2.Qxd1#
      • 1...d1S
        • 2.Qxd1#
      • 1...d1B
        • 2.Qxd1#
      • 1...d1R
        • 2.Qxd1#
      • 1...gxf3!
    • 1.Qa1?
      • 1...Ke2
        • 2.Qf1#
      • 1...d1Q
        • 2.Qxd1#
      • 1...d1S
        • 2.Qxd1#
      • 1...d1B
        • 2.Qxd1#
      • 1...d1R
        • 2.Qxd1#
      • 1...Kd4!
    • 1.Qb1+?
      • 1...Ke2
        • 2.Qf1#
      • 1...Kd4!
    • 1.Qg1?
      • 1...Ke2
        • 2.Qf1#
      • 1...d1Q
        • 2.Qxd1#
      • 1...d1S
        • 2.Qxd1#
      • 1...d1B
        • 2.Qxd1#
      • 1...d1R
        • 2.Qxd1#
      • 1...Kd4!
    • 1.b3?
      • 1...Kd4
        • 2.Qxd2#
      • 1...Kc3!
  • Keys
    • 1.Qh1!
      • 1...Ke2
        • 2.Qf1#
      • 1...Kd4
        • 2.Qd5#
      • 1...d1Q
        • 2.Qxd1#
      • 1...d1S
        • 2.Qxd1#
      • 1...d1B
        • 2.Qxd1#
      • 1...d1R
        • 2.Qxd1#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 1
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • K(b);P-FLIGHT::QAR2(A),XP(a)
  • Tries
    • Try
      • K(F);P-FLIGHT,XP(e)
      • Vars
        • K(b);P-FLIGHT::QAR2(A),XP(a)
      • Refutation
        • K(b);N_SPINP(a),P-FLIGHT,XS(C)
    • Try
      • Q(A);CHECK,N_PINP(a)
      • Refutation
        • K(b);P_SPINP(a),S_FLIGHT
    • Try
      • Q(A);CHECK,N_PINP(a)
      • Vars
        • K(b);P-FLIGHT::QAR2(A),XP(a)
      • Refutation
        • K(b);S_FLIGHT,XQ(A)
    • Try
      • Q(A);CHECK,N_PINP(a)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(A);N_PINP(a)
      • Vars
        • K(b);P-FLIGHT::QAR1(A)
        • P(a);OGATEB::QAR2(A),XQ(a)
        • P(a);OGATEB::QAR2(A),XS(a)
        • P(a);OGATEB::QAR2(A),XB(a)
        • P(a);OGATEB::QAR2(A),XR(a)
      • Refutation
        • P(c);XQ(A)
    • Try
      • Q(A);N_PINP(a)
      • Vars
        • K(b);S_FLIGHT::QAB1(A)
        • P(a);OGATEB::QAR2(A),XQ(a)
        • P(a);OGATEB::QAR2(A),XS(a)
        • P(a);OGATEB::QAR2(A),XB(a)
        • P(a);OGATEB::QAR2(A),XR(a)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(A);CHECK,N_PINP(a)
      • Vars
        • K(b);S_FLIGHT::QAB1(A)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(A);N_PINP(a)
      • Vars
        • K(b);S_FLIGHT::QAB1(A)
        • P(a);OGATEB::QAR2(A),XQ(a)
        • P(a);OGATEB::QAR2(A),XS(a)
        • P(a);OGATEB::QAR2(A),XB(a)
        • P(a);OGATEB::QAR2(A),XR(a)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • P(B);
      • Vars
        • K(b);P-FLIGHT::QAR2(A),XP(a)
      • Refutation
        • K(b);N_SPINP(a),P-FLIGHT
  • Actual
    • Q(A);N_PINP(a)
    • Vars
      • K(b);S_FLIGHT::QAB1(A)
      • K(b);P-FLIGHT::QAR1(A)
      • P(a);OGATEB::QAR2(A),XQ(a)
      • P(a);OGATEB::QAR2(A),XS(a)
      • P(a);OGATEB::QAR2(A),XB(a)
      • P(a);OGATEB::QAR2(A),XR(a)
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