MESON Chess Problem Database

Problem Display
PID: 243400 (8/5B2/2p3n1/8/3kp3/2R5/1Q6/2NK4 w - - 0 1)

Bata, Lorinc

Nepszava, 1943

8/5B2/2p3n1/8/3kp3/2R5/1Q6/2NK4

#2

5 + 4

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Se5
      • 2.Se2#
      • 2.Sb3#
    • 1...e3
      • 2.Rc4#
    • 1...c5
      • 2.Ra3#
      • 2.Rb3#
      • 2.Rd3#
      • 2.Rf3#
      • 2.Rg3#
      • 2.Rh3#
  • Tries
    • 1.Qf2+?
      • 1...Kxc3
        • 2.Qd2#
      • 1...e3
        • 2.Qxe3#
      • 1...Ke5!
    • 1.Qb5?
      • threat
        • 2.Se2#
        • 2.Qc5#
      • 1...Kxc3
        • 2.Se2#
      • 1...e3
        • 2.Rc4#
      • 1...c5
        • 2.Qxc5#
      • 1...Sf4
        • 2.Qc5#
      • 1...cxb5!
    • 1.Qb8?
      • threat
        • 2.Se2#
      • 1...e3
        • 2.Rc4#
      • 1...Sf4
        • 2.Qh8#
      • 1...Kxc3!
  • Keys
    • 1.Qh2!
      • threat
        • 2.Se2#
      • 1...Kxc3
        • 2.Qd2#
      • 1...Sf4
        • 2.Qh8#
      • 1...e3
        • 2.Rc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(b);SBLOCK::QAB(C)+R(D),DCHECK
  • Tries
    • Try
      • Q(C);CHECK
      • Vars
        • K(a);S_FLIGHT,XR(D)::QAB1(C)
        • P(b);P_SPINP(b)::QAB1(C),XP(b)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(C);
      • Threat
        • DUALS(2)
      • Vars
        • K(a);S_FLIGHT,XR(D)::S(A)
        • P(b);SBLOCK::R1(D)
        • P(c);::QAB1(C),XP(c)
        • S(d);::QAB1(C)
      • Refutation
        • P(c);XQ(C)
    • Try
      • Q(C);
      • Threat
        • S(A)
      • Vars
        • P(b);SBLOCK::R1(D)
        • S(d);N_GUARD::QAB(C)
      • Refutation
        • K(a);S_FLIGHT,XR(D)
  • Actual
    • Q(C);
    • Threat
      • S(A)
    • Vars
      • K(a);S_FLIGHT,XR(D)::QAB1(C)
      • S(d);N_GUARD::QAB(C)
      • P(b);SBLOCK::R1(D)
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