MESON Chess Problem Database

Problem Display
PID: 110729 (8/7p/3p3P/1p4Q1/bR1nk1p1/1p3pP1/1pr2P1p/1B2NKbN w - - 0 1)

Kardos, Tivadar

2nd Prize, Match: Paris - Prague, 1946

8/7p/3p3P/1p4Q1/bR1nk1p1/1p3pP1/1pr2P1p/1B2NKbN

#2

9 + 13

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bxf2
      • 2.Sxf2#
    • 1...d5
      • 2.Qf4#
  • Tries
    • 1.Sxc2?
      • threat
        • 2.Sa1#
        • 2.Se1#
        • 2.Sa3#
        • 2.Se3#
        • 2.Sxd4#
        • 2.Rxd4#
      • 1...Kd3
        • 2.Qe3#
      • 1...Bxf2
        • 2.Sxf2#
        • 2.Sa1#
        • 2.Se1#
        • 2.Sa3#
        • 2.Se3#
        • 2.Sxd4#
      • 1...bxc2!
    • 1.Qf6?
      • threat
        • 2.Rxd4#
        • 2.Qe6#
      • 1...Bxf2
        • 2.Qe6#
      • 1...Kd5!
  • Keys
    • 1.Sd3!
      • 1...Rc1+
        • 2.Sxc1#
      • 1...Rxf2+
        • 2.Sdxf2#
      • 1...Kxd3
        • 2.Qe3#
      • 1...Bxf2
        • 2.Sdxf2#
      • 1...Rd2
        • 2.Sc5#
      • 1...Re2
        • 2.Sc5#
      • 1...Rc3
        • 2.Sc5#
      • 1...Rc4
        • 2.Sc5#
      • 1...Rc5
        • 2.Sxc5#
      • 1...Rc6
        • 2.Sc5#
      • 1...Rc7
        • 2.Sc5#
      • 1...Rc8
        • 2.Sc5#
      • 1...d5
        • 2.Sc5#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 1
    • ADDED MATES = 11
    • REMOVED MATES = 0
  • Sets
    • B(a);XP(E)::S(D),XB(a)
    • P(l);SBLOCK::QAR1(H)
  • Tries
    • Try
      • S(B);XR(c)
      • Threat
        • DUALS(6)
      • Vars
        • K(i);N_SPINS(h),S_FLIGHT::QAR1(H)
      • Refutation
        • P(e);P_SPINP(e),XS(B)
    • Try
      • Q(H);
      • Threat
        • DUALS(2)
      • Vars
        • B(a);XP(E)::QAR2(H)
      • Refutation
        • K(i);N_SPINR(c),N_SPINS(h),S_FLIGHT
  • Actual
    • S(B);N_PINR(c)
    • Vars
      • R(c);CHECK::B(A)+S(B),XR(c)
      • R(c);CHECK,XP(E)::B(A)+S(B),DCHECK,XR(c)
      • K(i);N_SPINS(h),P_SPINR(c),S_FLIGHT,XS(B)::QAR1(H)
      • B(a);XP(E)::S(B),XB(a)
      • R(c);::B(A)+S(B),DCHECK
      • R(c);N_SPINS(h)::B(A)+S(B),DCHECK
      • R(c);::B(A)+S(B),DCHECK,XR(c)
      • P(l);N_GUARD::S(B)
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