MESON Chess Problem Database

Problem Display
PID: 77541 (8/8/3p3n/Q5N1/3k4/2R5/2K5/8 w - - 0 1)

Zoltan, Laszlo

Mutato, 1966

8/8/3p3n/Q5N1/3k4/2R5/2K5/8

#2

4 + 3

5454 Near Snap 2022

SOLUTION

  • SOUND
  • Tries
    • 1.Rc4+?
      • 1...Ke3
        • 2.Qe1#
        • 2.Qd2#
      • 1...Kxc4!
    • 1.Rc5?
      • threat
        • 2.Qc3#
      • 1...Ke3
        • 2.Qd2#
      • 1...dxc5!
    • 1.Qb4+?
      • 1...Kd5
        • 2.Qe4#
      • 1...Ke5!
    • 1.Qa4+?
      • 1...Kd5
        • 2.Qe4#
      • 1...Ke5!
    • 1.Qf5?
      • threat
        • 2.Sf3#
        • 2.Se6#
        • 2.Qe4#
      • 1...d5
        • 2.Sf3#
        • 2.Se6#
        • 2.Qf4#
        • 2.Qf6#
      • 1...Sxf5!
    • 1.Qa8?
      • threat
        • 2.Sf3#
        • 2.Qe4#
      • 1...d5
        • 2.Qh8#
      • 1...Ke5!
  • Keys
    • 1.Re3!
      • threat
        • 2.Re4#
      • 1...Kxe3
        • 2.Qd2#
      • 1...Kc4
        • 2.Re4#
      • 1...d5
        • 2.Qc3#

This anticipates 53568(2004)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(B);CHECK
      • Refutation
        • K(a);P-FLIGHT,XR(B)
    • Try
      • R(B);
      • Threat
        • QAB1(C)
      • Vars
        • K(a);S_FLIGHT::QAB1(C)
      • Refutation
        • P(b);XR(B)
    • Try
      • Q(C);CHECK
      • Vars
        • K(a);OGATE,P-FLIGHT::QAB1(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(C);CHECK
      • Vars
        • K(a);OGATE,P-FLIGHT::QAB1(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(C);
      • Threat
        • DUALS(3)
      • Refutation
        • S(c);XQ(C)
    • Try
      • Q(C);
      • Threat
        • DUALS(2)
      • Vars
        • P(b);SBLOCK::QAB(C)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • R(B);
    • Threat
      • R1(B)
    • Vars
      • K(a);S_FLIGHT,XR(B)::QAB1(C)
      • K(a);P-FLIGHT::R(B)
      • P(b);SBLOCK::QAB1(C)
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