MESON Chess Problem Database

Problem Display
PID: 190171 (8/7n/1N1Pp2P/2P1k1bQ/p2rp1P1/K3p3/p3B3/B2N4 w - - 0 1)

Kintzig, Robert

Magyar Sakkvilag, 1913

8/7n/1N1Pp2P/2P1k1bQ/p2rp1P1/K3p3/p3B3/B2N4

#2

10 + 9

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Kf4
      • 2.Qh2#
    • 1...Kf6
      • 2.Sd7#
    • 1...Sf6
      • 2.Qxg5#
    • 1...Sf8
      • 2.Qxg5#
  • Tries
    • 1.Kxa2?
      • 1...Kf4
        • 2.Qh2#
      • 1...Kf6
        • 2.Sd7#
      • 1...Sf6
        • 2.Qxg5#
      • 1...Sf8
        • 2.Qxg5#
      • 1...a3!
    • 1.Sf2?
      • 1...Kf4
        • 2.Qh2#
      • 1...Kf6
        • 2.Sd7#
      • 1...Sf6
        • 2.Qxg5#
      • 1...Sf8
        • 2.Qxg5#
      • 1...exf2!
    • 1.Sxe3?
      • 1...Kf6
        • 2.Sd7#
      • 1...Sf6
        • 2.Qxg5#
      • 1...Sf8
        • 2.Qxg5#
      • 1...Kf4!
    • 1.Sd7+?
      • 1...Kf4
        • 2.Qh2#
      • 1...Kd5!
    • 1.Bxd4+?
      • 1...Kf4
        • 2.Qh2#
      • 1...Kxd4!
    • 1.d7?
      • 1...Kf4
        • 2.Qh2#
      • 1...Sf6
        • 2.Qxg5#
      • 1...Sf8
        • 2.Qxg5#
      • 1...Kf6!
  • Keys
    • 1.Sb2!
      • 1...Rd3+
        • 2.Sxd3#
      • 1...Kf4
        • 2.Qh2#
      • 1...Kf6
        • 2.Sd7#
      • 1...Rxd6
        • 2.Sd3#
      • 1...Rd1
        • 2.Sd3#
      • 1...Rd2
        • 2.Sd3#
      • 1...Rb4
        • 2.Sd3#
      • 1...Rc4
        • 2.Sd3#
      • 1...Rd5
        • 2.Sd3#
      • 1...Sf6
        • 2.Qxg5#
      • 1...Sf8
        • 2.Qxg5#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
    • K(f);N_SPINB(g),N_SPINR(d),S_FLIGHT::QAB(G)
    • K(f);N_SPINB(g),S_FLIGHT::S(H)
    • S(i);N_GUARD::QAR2(G),XB(g)
  • Tries
    • Try
      • K(D);P-FLIGHT,XP(a)
      • Vars
        • K(f);N_SPINB(g),N_SPINR(d),S_FLIGHT::QAB(G)
        • K(f);N_SPINB(g),S_FLIGHT::S(H)
        • S(i);N_GUARD::QAR2(G),XB(g)
      • Refutation
        • P(c);
    • Try
      • S(B);
      • Vars
        • K(f);N_SPINB(g),N_SPINR(d),S_FLIGHT::QAB(G)
        • K(f);N_SPINB(g),S_FLIGHT::S(H)
        • S(i);N_GUARD::QAR2(G),XB(g)
      • Refutation
        • P(b);XS(B)
    • Try
      • S(B);XP(b)
      • Vars
        • K(f);N_SPINB(g),S_FLIGHT::S(H)
        • S(i);N_GUARD::QAR2(G),XB(g)
      • Refutation
        • K(f);N_SPINB(g),N_SPINR(d),S_FLIGHT
    • Try
      • S(H);CHECK
      • Vars
        • K(f);N_SPINB(g),N_SPINR(d),S_FLIGHT::QAB(G)
      • Refutation
        • K(f);N_SPINR(d),P-FLIGHT
    • Try
      • B(A);CHECK,XR(d)
      • Vars
        • K(f);N_SPINB(g),S_FLIGHT::QAB(G)
      • Refutation
        • K(f);N_SPINB(g),S_FLIGHT,XB(A)
    • Try
      • P(I);
      • Vars
        • K(f);N_SPINB(g),N_SPINR(d),S_FLIGHT::QAB(G)
        • S(i);N_GUARD::QAR2(G),XB(g)
      • Refutation
        • K(f);N_SPINB(g),S_FLIGHT
  • Actual
    • S(B);N_PINR(d)
    • Vars
      • R(d);CHECK::B(A)+S(B),DCHECK,XR(d)
      • K(f);N_SPINB(g),S_FLIGHT::QAB(G)
      • K(f);N_SPINB(g),S_FLIGHT::S(H)
      • R(d);XP(I)::B(A)+S(B),DCHECK
      • R(d);::B(A)+S(B),DCHECK
      • S(i);N_GUARD::QAR2(G),XB(g)
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